{"product_id":"platinum-corner-tape-butyl-membrane-jointing-tape","title":"Platinum Corner Tape","description":"\u003cp\u003ePlatinum Corner Tape is a self-adhesive butyl sealing tape used within the \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/platinum-basement-waterproofing\" target=\"_blank\"\u003e\u003cstrong\u003ePlatinum Cavity Drain and Waterproof Membrane system\u003c\/strong\u003e\u003c\/a\u003e to form watertight seals at joints, overlaps, wall-to-floor junctions, membrane cuts, service penetrations and awkward detailing areas.\u003c\/p\u003e\n\u003cp\u003eIt is designed to maintain continuity of the waterproof layer where a flat cavity drain membrane or damp proof membrane cannot provide a complete sealed detail on its own. Manufactured from a durable butyl rubber compound, Platinum Corner Tape provides strong adhesion, excellent flexibility and long-term resistance to water, air and chemical exposure.\u003c\/p\u003e\n\u003cp\u003eFull length rolls are available in standard \u003cstrong\u003e100mm x 20m x 0.8mm\u003c\/strong\u003e rolls for general sealing work and a heavy duty \u003cstrong\u003e150mm x 20m x 1.0mm\u003c\/strong\u003e rolls for wider, more demanding waterproofing details, also avalable in \u003cstrong\u003e10m \u003c\/strong\u003eand \u003cstrong\u003e5m \u003c\/strong\u003elengths for smaller jobs. It can also be used with \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/newton-waterproofing-membranes\" target=\"_blank\"\u003e\u003cstrong\u003eNewton CDM\u003c\/strong\u003e\u003c\/a\u003e, \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/platon-membranes\" target=\"_blank\"\u003e\u003cstrong\u003ePlaton Waterproof Membrane\u003c\/strong\u003e\u003c\/a\u003e and \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/wykamol-membrane\" target=\"_blank\"\u003e\u003cstrong\u003eWykamol Waterproof systems\u003c\/strong\u003e\u003c\/a\u003e where a compatible butyl membrane jointing tape is required.\u003c\/p\u003e\n\u003ch5\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h5\u003e\n\u003ch2\u003e\n\u003cstrong\u003eKey Features of Platinum Corner Tape\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cbr\u003e✔️ Self-adhesive butyl sealing tape for watertight seals at joints, overlaps, corners and wall-to-floor junctions.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e✔️ Maintains continuity of the waterproof layer where flat membranes cannot form a complete sealed detail alone.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e✔️ Durable butyl rubber compound provides strong adhesion, flexibility and long-term resistance to water and chemicals.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e✔️ Available in 100mm standard for general sealing or 150mm heavy duty for demanding waterproofing details.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e✔️ Compatible universally with \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/platinum-basement-waterproofing\" target=\"_blank\"\u003e\u003cstrong\u003ePlatinum\u003c\/strong\u003e\u003c\/a\u003e, \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/newton-waterproofing-membranes\" target=\"_blank\"\u003e\u003cstrong\u003eNewton CDM\u003c\/strong\u003e\u003c\/a\u003e, \u003cstrong\u003e\u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/platon-membranes\" target=\"_blank\"\u003ePlaton\u003c\/a\u003e \u003c\/strong\u003eand \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/wykamol-membrane\" target=\"_blank\"\u003e\u003cstrong\u003eWykamol\u003c\/strong\u003e\u003c\/a\u003e waterproofing membrane systems where required.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(88, 88, 88);\"\u003eSpecialist Butyl Waterproofing Tape For Critical Membrane Joints And Details\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003ePlatinum Corner Tape is a specialist waterproofing tape designed to seal the details that are difficult or impossible to protect using membrane sheets alone. In cavity drain membrane and structural waterproofing installations, the main membrane area represents only one part of the complete system. Joints, overlaps, cut edges, internal corners, wall-to-floor junctions, pipe penetrations, service entries and shaped areas around irregular substrates all need to remain watertight if the system is to perform correctly over the long term. Platinum Corner Tape is applied directly over these vulnerable areas to link the adjoining membrane surfaces together, creating a continuous and dependable waterproof barrier throughout the more intricate and exposed parts of the installation where water ingress is most likely to occur.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(88, 88, 88);\"\u003eFlexible Butyl Rubber Construction With Universal Membrane Compatibility\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe tape is manufactured from a butyl rubber compound, which is particularly well suited to below-ground waterproofing and cavity drain membrane detailing because it remains flexible, adhesive and highly resistant to water ingress over extended periods of service. Its self-adhesive face bonds securely to clean, dry membrane surfaces, allowing it to conform closely to the profile of the membrane and accommodate minor irregularities in the substrate or detailing area. This helps create a consistent and reliable seal across flat membrane joints, angled junctions and shaped sections where the membrane has been cut or formed around obstacles. Platinum Corner Tape can be used within the \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/platinum-basement-waterproofing\" target=\"_blank\"\u003e\u003cstrong\u003ePlatinum waterproof membrane system\u003c\/strong\u003e\u003c\/a\u003e and is equally suitable for universal use with \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/newton-waterproofing-membranes\" target=\"_blank\"\u003e\u003cstrong\u003eNewton CDM\u003c\/strong\u003e\u003c\/a\u003e, \u003cstrong\u003e\u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/platon-membranes\" target=\"_blank\"\u003ePlaton\u003c\/a\u003e \u003c\/strong\u003eand \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/wykamol-membrane\" target=\"_blank\"\u003e\u003cstrong\u003eWykamol waterproofing systems\u003c\/strong\u003e\u003c\/a\u003e where a dependable butyl jointing tape is required.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(88, 88, 88);\"\u003eTwo Sizes Available For Standard And Heavy Duty Detailing Requirements\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003ePlatinum Corner Tape is available in two sizes to suit different installation requirements across a range of waterproofing projects. The standard tape measures 100mm wide by 20m long with a thickness of 0.8mm, making it well suited to general membrane jointing, lap sealing and straightforward detailing work. The heavy duty version measures 150mm wide by 20m long with a thickness of 1.0mm, providing a wider and more robust sealing detail for demanding areas such as wall-to-floor junctions, below-ground waterproofing interfaces and more complex membrane transitions. The heavy duty version also includes a split release liner with a finger-lift overlap, allowing easier handling, more accurate positioning and controlled peeling during application. Where a plasterable surface is required over a sealed joint, \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/products\/mesh-membrane-tape\" target=\"_blank\"\u003e\u003cstrong\u003ePlatinum Mesh Tape\u003c\/strong\u003e\u003c\/a\u003e should be applied over the top.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n  .pc-platinum-corner-tape-table-wrap {\n    width: 100%;\n    max-width: 100%;\n    overflow-x: auto;\n    -webkit-overflow-scrolling: touch;\n    margin: 24px 0;\n  }\n\n  .pc-platinum-corner-tape-table {\n    width: 100%;\n    min-width: 620px;\n    table-layout: fixed;\n    border-collapse: collapse;\n    font-family: inherit;\n    font-size: 16px;\n    line-height: 1.25;\n    color: #111;\n    background: #fff;\n  }\n\n  .pc-platinum-corner-tape-table col:nth-child(1) { width: 38%; }\n  .pc-platinum-corner-tape-table col:nth-child(2) { width: 62%; }\n\n  .pc-platinum-corner-tape-table th,\n  .pc-platinum-corner-tape-table td {\n    border: 5px solid #fff;\n    padding: 8px 12px;\n    vertical-align: middle;\n    font-weight: 400;\n  }\n\n  .pc-platinum-corner-tape-table .pc-main-title th {\n    background: #7f7f7f;\n    color: #fff;\n    text-align: center;\n    text-transform: uppercase;\n    font-size: 30px;\n    line-height: 1.15;\n    font-weight: 700;\n    letter-spacing: 0.2px;\n    padding: 12px 10px;\n  }\n\n  .pc-platinum-corner-tape-table .pc-column-head th {\n    background: #a6a6a6;\n    color: #111;\n    font-size: 16px;\n    line-height: 1.2;\n    font-weight: 700;\n    text-align: left;\n    padding: 10px 12px;\n  }\n\n  .pc-platinum-corner-tape-table .pc-data-row td {\n    background: #fff;\n    text-align: left;\n  }\n\n  .pc-platinum-corner-tape-table .pc-data-row.pc-grey td {\n    background: #d9d9d9;\n  }\n\n  .pc-platinum-corner-tape-table .pc-spec-cell {\n    font-weight: 700;\n  }\n\n  @media screen and (max-width: 767px) {\n    .pc-platinum-corner-tape-table {\n      font-size: 14px;\n      min-width: 600px;\n    }\n\n    .pc-platinum-corner-tape-table th,\n    .pc-platinum-corner-tape-table td {\n      padding: 7px 9px;\n      border-width: 4px;\n    }\n\n    .pc-platinum-corner-tape-table .pc-main-title th {\n      font-size: 24px;\n      padding: 10px 8px;\n    }\n\n    .pc-platinum-corner-tape-table .pc-column-head th {\n      font-size: 15px;\n      padding: 9px;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"pc-platinum-corner-tape-table-wrap\"\u003e\n\u003ctable class=\"pc-platinum-corner-tape-table\" aria-label=\"Platinum Corner Tape Technical Information\"\u003e\n\u003ccolgroup\u003e \u003ccol\u003e \u003ccol\u003e \u003c\/colgroup\u003e\n\u003cthead\u003e\n\u003ctr class=\"pc-main-title\"\u003e\n\u003cth colspan=\"2\"\u003eTechnical Information\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pc-column-head\"\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr class=\"pc-data-row\"\u003e\n\u003ctd class=\"pc-spec-cell\"\u003eTape Type\u003c\/td\u003e\n\u003ctd\u003eSelf-adhesive butyl tape\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pc-data-row pc-grey\"\u003e\n\u003ctd class=\"pc-spec-cell\"\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eButyl rubber compound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pc-data-row\"\u003e\n\u003ctd class=\"pc-spec-cell\"\u003eStandard Size\u003c\/td\u003e\n\u003ctd\u003e100mm x 20m x 0.8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pc-data-row pc-grey\"\u003e\n\u003ctd class=\"pc-spec-cell\"\u003eHeavy Duty Size\u003c\/td\u003e\n\u003ctd\u003e150mm x 20m x 1.0mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pc-data-row\"\u003e\n\u003ctd class=\"pc-spec-cell\"\u003eAvailable Lengths\u003c\/td\u003e\n\u003ctd\u003e20m, 10m and 5m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pc-data-row pc-grey\"\u003e\n\u003ctd class=\"pc-spec-cell\"\u003eMain Use\u003c\/td\u003e\n\u003ctd\u003eSealing membrane joints\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pc-data-row\"\u003e\n\u003ctd class=\"pc-spec-cell\"\u003eSuitable Details\u003c\/td\u003e\n\u003ctd\u003eCorners, laps, cuts, penetrations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pc-data-row pc-grey\"\u003e\n\u003ctd class=\"pc-spec-cell\"\u003eJunction Use\u003c\/td\u003e\n\u003ctd\u003eWall-to-floor sealing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pc-data-row\"\u003e\n\u003ctd class=\"pc-spec-cell\"\u003eCompatible Systems\u003c\/td\u003e\n\u003ctd\u003ePlatinum, Newton, Platon, Wykamol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pc-data-row pc-grey\"\u003e\n\u003ctd class=\"pc-spec-cell\"\u003eApplication Area\u003c\/td\u003e\n\u003ctd\u003eWaterproofing membrane details\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pc-data-row\"\u003e\n\u003ctd class=\"pc-spec-cell\"\u003eSeal Function\u003c\/td\u003e\n\u003ctd\u003eMaintains waterproof continuity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pc-data-row pc-grey\"\u003e\n\u003ctd class=\"pc-spec-cell\"\u003eSurface Requirement\u003c\/td\u003e\n\u003ctd\u003eClean, dry membrane surfaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pc-data-row\"\u003e\n\u003ctd class=\"pc-spec-cell\"\u003eHD Liner Type\u003c\/td\u003e\n\u003ctd\u003eSplit release liner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pc-data-row pc-grey\"\u003e\n\u003ctd class=\"pc-spec-cell\"\u003eFinish Limitation\u003c\/td\u003e\n\u003ctd\u003eNot a plaster key\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pc-data-row\"\u003e\n\u003ctd class=\"pc-spec-cell\"\u003eOver-Tape Option\u003c\/td\u003e\n\u003ctd\u003ePlatinum Mesh Tape\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eProduct Benefits\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eReliable Joint And Junction Sealing:\u003c\/strong\u003e Platinum Corner Tape seals vulnerable membrane details such as overlaps, butted joints, wall-to-floor junctions and internal corners, helping maintain a continuous waterproofing layer across areas where membrane sheets alone cannot form a complete seal.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFlexible Butyl Rubber Construction: \u003c\/strong\u003eThe butyl rubber compound provides strong adhesion, flexibility and resistance to water, air and chemical exposure, making it suitable for damp, below-ground and aggressive environments commonly found in basement waterproofing and cavity drain membrane installations.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSuitable For Standard And Demanding Details:\u003c\/strong\u003e The 100mm standard version is suited to general jointing and sealing work, while the 150mm heavy duty version provides a wider, thicker seal for more demanding wall-to-floor junctions and higher-performance waterproofing details.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUniversal Membrane System Compatibility: \u003c\/strong\u003ePlatinum Corner Tape can be used within the \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/platinum-basement-waterproofing\" target=\"_blank\"\u003e\u003cstrong\u003ePlatinum Cavity Drain and Waterproof Membrane system\u003c\/strong\u003e\u003c\/a\u003e and is also suitable for compatible \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/newton-waterproofing-membranes\" target=\"_blank\"\u003e\u003cstrong\u003eNewton CDM\u003c\/strong\u003e\u003c\/a\u003e, \u003cstrong\u003e\u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/platon-membranes\" target=\"_blank\"\u003ePlaton\u003c\/a\u003e \u003c\/strong\u003eand \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/wykamol-membrane\" target=\"_blank\"\u003e\u003cstrong\u003eWykamol waterproof membrane\u003c\/strong\u003e\u003c\/a\u003e systems where a butyl sealing tape is required.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHelps Maintain Waterproofing Continuity: \u003c\/strong\u003eBy sealing cut edges, shaped membrane sections, protrusions and service penetrations, the tape helps prevent weak points in the waterproof layer and supports the integrity of the complete membrane installation.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eConforms To Irregular Details: \u003c\/strong\u003eThe natural flexibility of the butyl compound allows the tape to follow small surface irregularities, membrane profiles and awkward junction shapes, helping create a tighter seal around areas that are not completely flat.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSelf-Adhesive Application: \u003c\/strong\u003eThe self-adhesive backing allows the tape to be applied without separate adhesive, making it practical for site use when detailing membrane joints, corners and penetrations during basement waterproofing or damp proofing work.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHeavy Duty Split Release Liner: \u003c\/strong\u003eThe HD version includes a split release liner with finger-lift overlap, making it easier to position the tape accurately before full adhesion, especially on wider junctions and more detailed waterproofing interfaces.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2617\/5036\/files\/platinum-corner-tape-waterproof-membrane-ancillaries-658_1024x1024.webp?v=1780946717\" alt=\"Platinum Corner Tape - Waterproof Membrane Ancillaries\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch6 style=\"text-align: center;\"\u003e\n\u003cbr\u003e\u003cem\u003eTypical wall-to-floor junction showing Platinum Corner Tape securing \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/products\/platinum-aquatrack-drainage-channel\" target=\"_blank\" rel=\"noopener\"\u003eAquaTrack Channel\u003c\/a\u003e and \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/products\/basement-waterproof-tanking-membrane-cv8\" target=\"_blank\" rel=\"noopener\"\u003eCV8 wall membrane\u003c\/a\u003e, creating a neat bridge and watertight seal, overlapping onto the \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/products\/basement-floor-membrane-20mm-cv20\" target=\"_blank\" rel=\"noopener\"\u003eCV20 floor membrane\u003c\/a\u003e.\u003c\/em\u003e\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eTypical Applications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWall-To-Floor Junction Sealing: \u003c\/strong\u003ePlatinum Corner Tape is commonly used at the wall-to-floor junction in cavity drain membrane systems, where it is folded into the corner to link the wall membrane and floor membrane into one sealed waterproof detail.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMembrane Joint And Lap Sealing: \u003c\/strong\u003eSuitable for sealing overlapping or butted membrane joints, helping prevent water movement through the joint line and maintaining continuity between adjoining sections of waterproof membrane.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eService Penetration Detailing: \u003c\/strong\u003eUsed around pipes, conduits, cables and other services passing through the membrane, helping create a sealed detail around penetrations that would otherwise interrupt the waterproofing layer.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBelow-Ground Waterproofing Installations:\u003c\/strong\u003e Suitable for basement waterproofing, cellar conversion and retaining wall membrane systems where jointing tape is required to seal corners, junctions, cut edges and difficult detailing points.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIrregular Or Convoluted Substrates: \u003c\/strong\u003eUseful where the membrane has been shaped, cut or adjusted to follow an uneven surface, allowing the tape to seal the created joints and prevent exposed or weakened areas in the system.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUniversal Waterproof Membrane Repairs And Detailing:\u003c\/strong\u003e Can be used with compatible \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/platinum-basement-waterproofing\" target=\"_blank\"\u003e\u003cstrong\u003ePlatinum\u003c\/strong\u003e\u003c\/a\u003e, \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/newton-waterproofing-membranes\" target=\"_blank\"\u003e\u003cstrong\u003eNewton CDM\u003c\/strong\u003e\u003c\/a\u003e, \u003cstrong\u003e\u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/platon-membranes\" target=\"_blank\"\u003ePlaton\u003c\/a\u003e \u003c\/strong\u003eand \u003cstrong\u003e\u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/wykamol-membrane\" target=\"_blank\"\u003eWykamol\u003c\/a\u003e \u003c\/strong\u003emembrane systems for local sealing, joint reinforcement and waterproof detailing where a self-adhesive butyl tape is appropriate.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2617\/5036\/files\/platinum-corner-tape-waterproof-membrane-ancillaries-850_1024x1024.webp?v=1780946713\" alt=\"Platinum Corner Tape - Waterproof Membrane Ancillaries\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch5\u003eFAQ's\u003c\/h5\u003e\n\u003ch3\u003eQ) What is Platinum Corner Tape used for?\u003c\/h3\u003e\n\u003cp\u003eA) Platinum Corner Tape is used to create watertight seals in cavity drain and waterproof membrane systems, especially at points where a membrane sheet alone cannot form a complete waterproof detail. It is commonly applied over joints, overlaps, internal corners, wall-to-floor junctions, membrane cuts, service penetrations and awkward shaped areas. In basement waterproofing and damp proof membrane installations, these detailing points are often the most vulnerable areas of the system. Platinum Corner Tape helps link membrane surfaces together, preventing weak points where water could track through. Its self-adhesive butyl construction makes it practical for professional waterproofing work where long-term sealing continuity is essential.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eQ) How does Platinum Corner Tape work in a waterproof membrane system?\u003c\/h3\u003e\n\u003cp\u003eA) Platinum Corner Tape works by bonding over vulnerable junctions and cut areas to create a continuous sealed layer between adjoining waterproof membrane sections. The butyl rubber compound adheres to clean, dry membrane surfaces and remains flexible enough to follow corners, laps and small surface irregularities. When pressed firmly into position, it helps close gaps between membrane edges and links the waterproof layer across details that would otherwise be difficult to seal. This is particularly important in cavity drain membrane systems, where any interruption around joints, penetrations or wall-to-floor junctions can become a route for moisture movement. Correct application helps maintain the overall integrity of the waterproofing design.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eQ) Where should Platinum Corner Tape be used?\u003c\/h3\u003e\n\u003cp\u003eA) Platinum Corner Tape should be used wherever a waterproof membrane system needs additional sealing at joints, edges or complex details. Typical areas include wall-to-floor junctions, internal corners, membrane overlaps, butted joints, service penetrations, pipe entries, cable routes, local repairs and areas where the membrane has been cut or shaped around an obstacle. It is especially useful in below-ground waterproofing systems, cellar conversions and basement membrane installations where moisture pressure and detailing quality matter. It can also be used in compatible \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/platinum-basement-waterproofing\" target=\"_blank\"\u003e\u003cstrong\u003ePlatinum\u003c\/strong\u003e\u003c\/a\u003e, \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/newton-waterproofing-membranes\" target=\"_blank\"\u003e\u003cstrong\u003eNewton CDM\u003c\/strong\u003e\u003c\/a\u003e, \u003cstrong\u003e\u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/platon-membranes\" target=\"_blank\"\u003ePlaton\u003c\/a\u003e \u003c\/strong\u003eand \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/wykamol-membrane\" target=\"_blank\"\u003e\u003cstrong\u003eWykamol waterproof membrane\u003c\/strong\u003e\u003c\/a\u003e systems where a self-adhesive butyl jointing tape is required to maintain sealing continuity.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eQ) What sizes of Platinum Corner Tape are available?\u003c\/h3\u003e\n\u003cp\u003eA) Platinum Corner Tape is available in practical sizes to suit different waterproofing details. Standard full roll lengths measure \u003cstrong\u003e100mm x 20m x 0.8mm\u003c\/strong\u003e, which is well suited to general membrane jointing, lap sealing, overlap sealing and straightforward detailing work. The heavy duty version measures \u003cstrong\u003e150mm x 20m x 1.0mm\u003c\/strong\u003e and provides a wider, thicker seal for more demanding areas such as wall-to-floor junctions, below-ground waterproofing interfaces and complex membrane transitions. We also offer smaller cuts of \u003cstrong\u003e10m \u003c\/strong\u003eand \u003cstrong\u003e5m \u003c\/strong\u003elengths. The heavy duty tape also includes a split release liner with finger-lift overlap, making it easier to position accurately and peel back gradually during installation, particularly on wider or more awkward sealing details.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eQ) How do you apply Platinum Corner Tape at a wall-to-floor junction?\u003c\/h3\u003e\n\u003cp\u003eA) At a wall-to-floor junction, Platinum Corner Tape is normally folded along its length so the crease sits tightly into the angle between the wall membrane and floor membrane. The release backing is then removed gradually while the tape is pressed firmly onto both membrane faces. This links the vertical and horizontal membrane surfaces into one sealed waterproof detail. The tape should be applied only to clean, dry surfaces, and firm hand pressure should be used to ensure full contact across the full width. On more demanding details, the 150mm heavy duty version may be preferred because it provides a wider contact area and a more robust seal.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eQ) Can Platinum Corner Tape be used around pipes and service penetrations?\u003c\/h3\u003e\n\u003cp\u003eA) Yes, Platinum Corner Tape can be used around pipes, conduits, cables and other service penetrations where the waterproof membrane has been interrupted. These areas need careful detailing because any cut through the membrane can become a weak point if it is not sealed properly. The tape can be shaped and pressed around the penetration to help link the cut membrane edge back into the surrounding waterproof layer. For irregular service details, the tape must be applied carefully so it remains tight, continuous and fully bonded to the membrane surface. The surface should be clean and dry before application, and all edges should be firmly pressed down to reduce the risk of water tracking.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eQ) Is Platinum Corner Tape compatible with other waterproof membrane systems?\u003c\/h3\u003e\n\u003cp\u003eA) Platinum Corner Tape is designed for use within the \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/platinum-basement-waterproofing\" target=\"_blank\"\u003e\u003cstrong\u003ePlatinum Cavity Drain and Waterproof Membrane system\u003c\/strong\u003e\u003c\/a\u003e, but it can also be used with compatible \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/newton-waterproofing-membranes\" target=\"_blank\"\u003e\u003cstrong\u003eNewton CDM\u003c\/strong\u003e\u003c\/a\u003e, \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/platon-membranes\" target=\"_blank\"\u003e\u003cstrong\u003ePlaton Waterproof Membrane\u003c\/strong\u003e\u003c\/a\u003e and \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/collections\/wykamol-membrane\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eWykamol Waterproof systems\u003c\/strong\u003e\u003c\/a\u003e where a butyl membrane jointing tape is required. This makes it a useful universal detailing tape for installers working across different cavity drain membrane systems. However, compatibility should always be considered in relation to the specific membrane surface, site condition and waterproofing design. The tape must be applied to clean, dry and suitable surfaces to achieve proper adhesion. Where a manufacturer-specific system warranty is involved, the full specification should be checked before substituting any ancillary product.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eQ) Can you plaster or render directly over Platinum Corner Tape?\u003c\/h3\u003e\n\u003cp\u003eA) Platinum Corner Tape is not designed to provide a direct plaster or render key by itself. Its main role is to create a waterproof butyl seal, not to provide a textured surface for finishes to grip onto. Where a sealed area also needs to receive plaster, render or a compatible finishing coat, \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/products\/mesh-membrane-tape\" target=\"_blank\"\u003e\u003cstrong\u003ePlatinum Mesh Tape\u003c\/strong\u003e\u003c\/a\u003e should be applied over the top of the Platinum Corner Tape. This gives the surface a suitable key while allowing the butyl tape underneath to perform its sealing function. This is an important detail because trying to plaster directly over a smooth butyl tape can result in poor adhesion, cracking or finish failure.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eQ) What preparation is needed before using Platinum Corner Tape?\u003c\/h3\u003e\n\u003cp\u003eA) Preparation is essential because Platinum Corner Tape relies on clean, dry membrane surfaces to form a reliable seal. Before application, the membrane should be free from dust, moisture, grease, loose debris and any contamination that could reduce adhesion. If the tape is being used over a joint, overlap or penetration, the area should be checked first to ensure the membrane is correctly positioned and stable. The tape should then be aligned carefully before full contact is made, especially with the heavy duty version where the split release liner helps with controlled positioning. Once applied, the tape should be pressed firmly across the full width to remove air gaps and improve contact.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eQ) What are the limitations of Platinum Corner Tape?\u003c\/h3\u003e\n\u003cp\u003eA) Platinum Corner Tape is a waterproofing detail tape, not a replacement for correct membrane design, drainage planning or proper system installation. It should not be used on dirty, wet, dusty or unstable surfaces, as poor adhesion can compromise the seal. It is also not intended to provide a plasterable finish on its own, so \u003ca href=\"https:\/\/www.platinumchemicals.co.uk\/products\/mesh-membrane-tape\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003ePlatinum Mesh Tape\u003c\/strong\u003e\u003c\/a\u003e should be used over it where plaster or render needs to bond. The tape must be applied with full contact and should not be stretched, folded badly or left bridging unsupported gaps. In basement and cavity drain systems, it should be used as part of a complete waterproofing specification rather than treated as a standalone waterproofing solution.\u003cbr\u003e\u003c\/p\u003e","brand":"Platinum Building Chemicals Ltd","offers":[{"title":"(W) 150mm x (L) 20M (Heavy Duty)","offer_id":7653483053086,"sku":"BWA27","price":37.5,"currency_code":"GBP","in_stock":true},{"title":"(W) 150mm x (L) 10M (Heavy Duty)","offer_id":7923797360670,"sku":"BWA27-10","price":22.5,"currency_code":"GBP","in_stock":true},{"title":"(W) 150mm x (L) 5M (Heavy Duty)","offer_id":7923803193374,"sku":"BWA27-05","price":13.5,"currency_code":"GBP","in_stock":true},{"title":"(W) 100mm x (L) 20M","offer_id":8758540533859,"sku":"BWA26S","price":26.5,"currency_code":"GBP","in_stock":true},{"title":"(W) 100mm x (L) 10M","offer_id":8758543319139,"sku":"BWA26S-10","price":15.9,"currency_code":"GBP","in_stock":true},{"title":"(W) 100mm x (L) 5M","offer_id":8758543777891,"sku":"BWA26S-05","price":9.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2617\/5036\/files\/platinum-corner-tape-w-150mm-x-l-20m-heavy-duty-waterproof-membrane-ancillaries-804.webp?v=1780921928","url":"https:\/\/www.platinumchemicals.co.uk\/products\/platinum-corner-tape-butyl-membrane-jointing-tape","provider":"Platinum Chemicals","version":"1.0","type":"link"}