Platon Sealing Tape
Platon Sealing Tape is a double-sided self-adhesive butyl sealing tape used within the Platon Waterproof Membrane System to join adjacent sheets of cavity drain membrane and waterproof membrane into one continuous waterproof layer.
It is the primary jointing tape used at membrane overlaps, flange joints and stud-into-stud laps, forming a watertight bond between one sheet and the next. Manufactured from a durable butyl rubber compound, Platon Sealing Tape provides strong adhesion, flexibility and long-term resistance to water, air and chemical exposure.
Supplied in 30mm wide x 20m long rolls with a 1mm thickness, it is designed to sit within the membrane overlap rather than cover the joint from the surface. It is suitable for below-ground waterproofing, basement membrane installations, wall and floor membrane jointing, abutting joints, corners, reveals, wall-to-floor transitions and sealed detailing around protrusions.
Next Day Delivery
Available on most mainland UK orders
Free Help & Advice
Call 01355 222 777
Mon.-Fri 8:30am - 4:15pm, or email us
Same Day Despatch
On in-stock orders placed before 14:00
Great Service
A proudly independent family business with 40 years experience
Next Day Delivery
Available on most mainland UK orders
Free Help & Advice
Call 01355 222 777
Mon.-Fri 8:30am - 4:15pm, or email us
Same Day Despatch
On in-stock orders placed before 14:00
Great Service
A proudly independent family business with 40 years experience
Key Features of Platon Sealing Tape
✔️ Double-sided self-adhesive butyl tape that joins adjacent membrane sheets into one continuous waterproof layer.
✔️ Sits inside membrane overlaps, flanges and stud-into-stud laps rather than covering the joint externally.
✔️ Durable butyl rubber compound provides strong adhesion, flexibility and long-term resistance to water and chemicals.
✔️ Supplied in 30mm x 20m rolls at 1mm thickness to conform closely within studded membrane laps.
✔️ Suitable for corners, reveals, wall-to-floor transitions and sealed detailing around pipes and service protrusions.
Double-Sided Butyl Jointing Tape For Platon Cavity Drain Membrane Sheets
Platon Sealing Tape is a specialist double-sided membrane jointing tape used to create watertight connections between adjacent Platon cavity drain membrane sheets. In a below-ground waterproofing system, each membrane sheet must be properly joined to the next so the installation performs as a continuous waterproof layer rather than separate sections of membrane. Platon Sealing Tape is positioned between the overlapping membrane surfaces, where it bonds sheet to sheet and seals the joint line from within the lap itself. This makes it an important accessory for Platon waterproof membrane installations, particularly where flanges, overlaps and stud-into-stud laps need to remain securely sealed against water movement throughout the life of the system.
Flexible Butyl Rubber Construction For Consistent Internal Joint Sealing
The tape is manufactured from butyl rubber, a material widely used for waterproofing and membrane sealing because it combines strong adhesion with flexibility and resistance to water, air and chemical exposure. Its double-sided self-adhesive format allows the adjoining membrane sheets to be bonded directly together without the need for a separate adhesive. This differs from a surface-applied tape, as Platon Sealing Tape is intended to sit inside the overlap and become part of the joint itself. The butyl compound allows the tape to conform closely to the membrane profile, helping to maintain a consistent seal along the full joint length, even where the membrane surface is studded, flanged or slightly irregular due to normal site tolerances.
Practical 30mm Roll Format For Laps Junctions And Membrane Detailing
Platon Sealing Tape is supplied in 30mm wide by 20m long rolls with a 1mm thickness, the narrow width reflecting its purpose as an internal jointing tape for membrane laps and overlaps rather than a wider corner or face-sealing tape. It is used primarily where adjacent membrane sheets overlap, including flange joints and stud-into-stud laps, but is equally suitable for abutting joints, corners, reveals, wall-to-floor junctions and detailing around pipes, cables, conduits or other protrusions through the membrane. The tape should be applied between clean, dry membrane surfaces, with a heat gun often used carefully in cold or damp conditions to assist adhesion. Where meshed membranes will receive a direct plaster or render finish, Platon Mesh Tape should be applied over the sealed joint, as Platon Sealing Tape does not provide a plasterable surface.
| Technical Information | |
|---|---|
| Specification | Detail |
| Tape Type | Double-sided butyl tape |
| Material | Butyl rubber compound |
| Roll Size | 30mm x 20m |
| Thickness | 1mm |
| Main Use | Membrane sheet jointing |
| Tape Position | Inside membrane overlaps |
| Suitable Joints | Laps, flanges, abutting joints |
| Compatible System | Platon waterproof system |
| Application Area | Below-ground waterproofing |
| Seal Function | Bonds membrane to membrane |
| Surface Requirement | Clean, dry membrane surfaces |
| Application Aid | Heat gun if required |
| Finish Limitation | Not a plaster key |
| Over-Tape Option | Platon Mesh Tape |
| Typical Use | Basement membrane jointing |
Product Benefits
-
Double-Sided Membrane Bonding: Platon Sealing Tape bonds two membrane surfaces directly together within the overlap, creating a sealed sheet-to-sheet connection rather than simply covering the joint from the exposed surface.
-
Primary Jointing Tape For Platon Systems: Designed for use within the Platon Waterproof Membrane System, it provides the main jointing method for cavity drain membrane sheets in basement waterproofing and below-ground membrane installations.
-
Watertight Overlap Sealing: The butyl adhesive seals membrane overlaps, flange joints and stud-into-stud laps, helping reduce the risk of water tracking through the joint line and supporting the waterproofing continuity of the system.
-
Durable Butyl Rubber Construction: Manufactured from butyl rubber, the tape provides strong adhesion, flexibility and resistance to water, air and chemical exposure, making it suitable for damp, humid and below-ground environments.
-
Correct Format For Internal Jointing: At 30mm wide and 1mm thick, Platon Sealing Tape is designed to sit neatly inside the membrane overlap, providing a controlled jointing detail without unnecessarily spanning across the face of the membrane.
-
Conforms To Membrane Profiles: The flexible butyl compound allows the tape to follow membrane flanges, laps and studded profiles, helping achieve close contact between the sheets and a consistent bond along the full joint length.
-
Helps Create A Continuous Waterproof Layer: By sealing each membrane-to-membrane connection, the tape helps the installation perform as one joined waterproof membrane system rather than separate sheets with vulnerable joint lines.
-
Suitable For Detailed Membrane Work: Platon Sealing Tape can be used not only on straight overlaps, but also around cut membrane areas, abutting joints, corners, reveals, wall-to-floor transitions and protrusions where careful joint sealing is required.
Typical Applications
-
Membrane Overlap Sealing: Platon Sealing Tape is used between overlapping sheets of cavity drain membrane to form a watertight bond along the lap, helping maintain waterproofing continuity across walls, floors and other membrane areas.
-
Flange Joint Sealing: Suitable for sealing membrane flange joints where adjacent sheets meet, ensuring the connection between the sheets is bonded and sealed as part of the Platon waterproof membrane system.
-
Stud-Into-Stud Lap Jointing: Used where one studded membrane sheet is nested into another, allowing the double-sided butyl tape to bond the overlapping surfaces together and form a secure sealed lap.
-
Abutting Membrane Joints: Suitable as part of the sealing detail for abutting membrane joints where sheets are brought together and require a watertight connection to reduce the risk of water movement through the joint.
-
Corners And Reveals: Used where membrane has been cut, shaped or overlapped around corners, reveals, returns or changes in direction, helping seal the created joint and maintain the waterproof layer.
-
Wall-To-Floor Junction Details: Suitable for areas where wall and floor membranes are overlapped or connected, helping form a sealed joint within a complete basement waterproofing or cavity drain membrane installation.
-
Protrusions And Service Detailing: Used around pipes, cables, conduits and structural protrusions where the membrane has been cut or formed, allowing the overlap or joint around the detail to be sealed correctly.
Q) What is Platon Sealing Tape used for?
A) Platon Sealing Tape is used to join adjacent sheets of Platon cavity drain membrane into one continuous sealed layer. It is a double-sided self-adhesive butyl tape designed to sit inside membrane overlaps, flange joints and stud-into-stud laps, bonding one sheet directly to the next. This is important because a waterproof membrane system must perform as one connected installation rather than separate sheets with vulnerable joint lines. Platon Sealing Tape helps seal the lap from within the joint, reducing the risk of water movement through the overlap. It is commonly used in basement waterproofing, below-ground membrane installations, wall and floor membrane jointing, corners, reveals and detailed membrane transitions.
Q) How does Platon Sealing Tape work?
A) Platon Sealing Tape works by bonding two membrane surfaces together from inside the overlap. The tape is positioned between the adjoining membrane sheets, with the backing paper removed progressively as it is laid along the lap, flange or stud-into-stud joint. Once the second membrane surface is pressed onto the tape, the double-sided butyl adhesive grips both sheets and forms a watertight seal along the joint line. This internal bonding method is different from a wider surface tape because the seal is created within the membrane lap itself. The flexible butyl compound helps the tape conform to membrane profiles, flanges and studded surfaces, giving close contact along the full joint.
Q) Where should Platon Sealing Tape be used?
A) Platon Sealing Tape should be used wherever Platon waterproof membrane sheets need to be joined together with a sealed overlap. Typical uses include membrane laps, flange joints, stud-into-stud laps, abutting joints, corners, reveals and wall-to-floor transition details. It can also be used where membranes have been cut or shaped around pipes, cables, conduits, protrusions or other service details, provided an overlap or joint can be formed and sealed correctly. Its purpose is to maintain continuity between adjoining membrane sheets, so it should be used as part of the complete Platon Waterproof Membrane System. It is especially relevant in basements, cellars and below-ground waterproofing work.
Q) What size is Platon Sealing Tape?
A) Platon Sealing Tape is supplied in 30mm wide x 20m long rolls, with a thickness of 1mm. The 30mm width reflects its purpose as an internal jointing tape for membrane overlaps rather than a wider face-sealing or corner detailing tape. It is designed to sit neatly within the membrane lap, bonding one membrane sheet directly to another without spanning unnecessarily across the exposed face. The 1mm butyl thickness provides a flexible adhesive layer that can conform to the membrane profile and help maintain contact between adjoining sheets. This makes it suitable for controlled sheet-to-sheet jointing in Platon cavity drain membrane installations.
Q) How do you apply Platon Sealing Tape?
A) Platon Sealing Tape should be applied between clean, dry membrane surfaces. The tape is normally positioned along the overlap, flange or stud-into-stud lap, with the backing paper removed gradually as the tape is laid into place. Once the tape is correctly aligned, the adjoining membrane sheet should be pressed firmly against it to complete the bond and seal the joint. Good pressure is important because the butyl needs close contact with both membrane surfaces along the full joint length. In cold, damp or humid site conditions, a heat gun is often used carefully to dry the membrane surface and help improve adhesion before the joint is closed.
Q) Can Platon Sealing Tape be used at wall-to-floor junctions?
A) Platon Sealing Tape can be used at wall-to-floor transition details where wall and floor membranes overlap or connect and require a sealed internal joint. Its main function is still sheet-to-sheet bonding, so it should be positioned within the lap where the two membrane surfaces meet. For broader surface sealing at corners or junctions, Platon Corner Strip Tape may also be required depending on the waterproofing detail. Platon Sealing Tape is not intended to act as a wide cover strip over the face of the joint. It is designed to seal the overlap itself, helping the wall and floor membrane sections become part of one continuous waterproof system.
Q) Can you plaster or render over Platon Sealing Tape?
A) Platon Sealing Tape is not designed to provide a direct plaster or render key. Its job is to create a watertight bond between membrane sheets, not to provide a textured surface for finishing materials to grip. Where Platon Sealing Tape is used with meshed membranes that will receive a direct plaster or render finish, Platon Mesh Tape should be applied above the sealed joint to reinstate the surface key. This allows the sealing tape underneath to maintain the watertight joint, while the mesh tape provides a suitable surface for the finishing coat. Without this additional mesh detail, plaster or render may not bond properly over the joint area.
Q) What are the main limitations of Platon Sealing Tape?
A) Platon Sealing Tape should not be used as a substitute for correct membrane overlap formation, good surface preparation or wider detailing tapes where they are required. It is a double-sided internal jointing tape, designed to sit between membrane sheets, not a surface-applied tape for covering large gaps, exposed edges or broad corner details. It must be applied to clean, dry membrane surfaces because dust, moisture, grease or poor alignment can reduce adhesion and compromise the seal. The joint should be pressed firmly together along its full length to ensure full contact. For corners, protrusions, plasterable finishes or larger surface details, additional Platon tapes may be needed.
Key Features of Platon Sealing Tape
✔️ Double-sided self-adhesive butyl tape that joins adjacent membrane sheets into one continuous waterproof layer.
✔️ Sits inside membrane overlaps, flanges and stud-into-stud laps rather than covering the joint externally.
✔️ Durable butyl rubber compound provides strong adhesion, flexibility and long-term resistance to water and chemicals.
✔️ Supplied in 30mm x 20m rolls at 1mm thickness to conform closely within studded membrane laps.
✔️ Suitable for corners, reveals, wall-to-floor transitions and sealed detailing around pipes and service protrusions.
Double-Sided Butyl Jointing Tape For Platon Cavity Drain Membrane Sheets
Platon Sealing Tape is a specialist double-sided membrane jointing tape used to create watertight connections between adjacent Platon cavity drain membrane sheets. In a below-ground waterproofing system, each membrane sheet must be properly joined to the next so the installation performs as a continuous waterproof layer rather than separate sections of membrane. Platon Sealing Tape is positioned between the overlapping membrane surfaces, where it bonds sheet to sheet and seals the joint line from within the lap itself. This makes it an important accessory for Platon waterproof membrane installations, particularly where flanges, overlaps and stud-into-stud laps need to remain securely sealed against water movement throughout the life of the system.
Flexible Butyl Rubber Construction For Consistent Internal Joint Sealing
The tape is manufactured from butyl rubber, a material widely used for waterproofing and membrane sealing because it combines strong adhesion with flexibility and resistance to water, air and chemical exposure. Its double-sided self-adhesive format allows the adjoining membrane sheets to be bonded directly together without the need for a separate adhesive. This differs from a surface-applied tape, as Platon Sealing Tape is intended to sit inside the overlap and become part of the joint itself. The butyl compound allows the tape to conform closely to the membrane profile, helping to maintain a consistent seal along the full joint length, even where the membrane surface is studded, flanged or slightly irregular due to normal site tolerances.
Practical 30mm Roll Format For Laps Junctions And Membrane Detailing
Platon Sealing Tape is supplied in 30mm wide by 20m long rolls with a 1mm thickness, the narrow width reflecting its purpose as an internal jointing tape for membrane laps and overlaps rather than a wider corner or face-sealing tape. It is used primarily where adjacent membrane sheets overlap, including flange joints and stud-into-stud laps, but is equally suitable for abutting joints, corners, reveals, wall-to-floor junctions and detailing around pipes, cables, conduits or other protrusions through the membrane. The tape should be applied between clean, dry membrane surfaces, with a heat gun often used carefully in cold or damp conditions to assist adhesion. Where meshed membranes will receive a direct plaster or render finish, Platon Mesh Tape should be applied over the sealed joint, as Platon Sealing Tape does not provide a plasterable surface.
| Technical Information | |
|---|---|
| Specification | Detail |
| Tape Type | Double-sided butyl tape |
| Material | Butyl rubber compound |
| Roll Size | 30mm x 20m |
| Thickness | 1mm |
| Main Use | Membrane sheet jointing |
| Tape Position | Inside membrane overlaps |
| Suitable Joints | Laps, flanges, abutting joints |
| Compatible System | Platon waterproof system |
| Application Area | Below-ground waterproofing |
| Seal Function | Bonds membrane to membrane |
| Surface Requirement | Clean, dry membrane surfaces |
| Application Aid | Heat gun if required |
| Finish Limitation | Not a plaster key |
| Over-Tape Option | Platon Mesh Tape |
| Typical Use | Basement membrane jointing |
Product Benefits
-
Double-Sided Membrane Bonding: Platon Sealing Tape bonds two membrane surfaces directly together within the overlap, creating a sealed sheet-to-sheet connection rather than simply covering the joint from the exposed surface.
-
Primary Jointing Tape For Platon Systems: Designed for use within the Platon Waterproof Membrane System, it provides the main jointing method for cavity drain membrane sheets in basement waterproofing and below-ground membrane installations.
-
Watertight Overlap Sealing: The butyl adhesive seals membrane overlaps, flange joints and stud-into-stud laps, helping reduce the risk of water tracking through the joint line and supporting the waterproofing continuity of the system.
-
Durable Butyl Rubber Construction: Manufactured from butyl rubber, the tape provides strong adhesion, flexibility and resistance to water, air and chemical exposure, making it suitable for damp, humid and below-ground environments.
-
Correct Format For Internal Jointing: At 30mm wide and 1mm thick, Platon Sealing Tape is designed to sit neatly inside the membrane overlap, providing a controlled jointing detail without unnecessarily spanning across the face of the membrane.
-
Conforms To Membrane Profiles: The flexible butyl compound allows the tape to follow membrane flanges, laps and studded profiles, helping achieve close contact between the sheets and a consistent bond along the full joint length.
-
Helps Create A Continuous Waterproof Layer: By sealing each membrane-to-membrane connection, the tape helps the installation perform as one joined waterproof membrane system rather than separate sheets with vulnerable joint lines.
-
Suitable For Detailed Membrane Work: Platon Sealing Tape can be used not only on straight overlaps, but also around cut membrane areas, abutting joints, corners, reveals, wall-to-floor transitions and protrusions where careful joint sealing is required.
Typical Applications
-
Membrane Overlap Sealing: Platon Sealing Tape is used between overlapping sheets of cavity drain membrane to form a watertight bond along the lap, helping maintain waterproofing continuity across walls, floors and other membrane areas.
-
Flange Joint Sealing: Suitable for sealing membrane flange joints where adjacent sheets meet, ensuring the connection between the sheets is bonded and sealed as part of the Platon waterproof membrane system.
-
Stud-Into-Stud Lap Jointing: Used where one studded membrane sheet is nested into another, allowing the double-sided butyl tape to bond the overlapping surfaces together and form a secure sealed lap.
-
Abutting Membrane Joints: Suitable as part of the sealing detail for abutting membrane joints where sheets are brought together and require a watertight connection to reduce the risk of water movement through the joint.
-
Corners And Reveals: Used where membrane has been cut, shaped or overlapped around corners, reveals, returns or changes in direction, helping seal the created joint and maintain the waterproof layer.
-
Wall-To-Floor Junction Details: Suitable for areas where wall and floor membranes are overlapped or connected, helping form a sealed joint within a complete basement waterproofing or cavity drain membrane installation.
-
Protrusions And Service Detailing: Used around pipes, cables, conduits and structural protrusions where the membrane has been cut or formed, allowing the overlap or joint around the detail to be sealed correctly.
Q) What is Platon Sealing Tape used for?
A) Platon Sealing Tape is used to join adjacent sheets of Platon cavity drain membrane into one continuous sealed layer. It is a double-sided self-adhesive butyl tape designed to sit inside membrane overlaps, flange joints and stud-into-stud laps, bonding one sheet directly to the next. This is important because a waterproof membrane system must perform as one connected installation rather than separate sheets with vulnerable joint lines. Platon Sealing Tape helps seal the lap from within the joint, reducing the risk of water movement through the overlap. It is commonly used in basement waterproofing, below-ground membrane installations, wall and floor membrane jointing, corners, reveals and detailed membrane transitions.
Q) How does Platon Sealing Tape work?
A) Platon Sealing Tape works by bonding two membrane surfaces together from inside the overlap. The tape is positioned between the adjoining membrane sheets, with the backing paper removed progressively as it is laid along the lap, flange or stud-into-stud joint. Once the second membrane surface is pressed onto the tape, the double-sided butyl adhesive grips both sheets and forms a watertight seal along the joint line. This internal bonding method is different from a wider surface tape because the seal is created within the membrane lap itself. The flexible butyl compound helps the tape conform to membrane profiles, flanges and studded surfaces, giving close contact along the full joint.
Q) Where should Platon Sealing Tape be used?
A) Platon Sealing Tape should be used wherever Platon waterproof membrane sheets need to be joined together with a sealed overlap. Typical uses include membrane laps, flange joints, stud-into-stud laps, abutting joints, corners, reveals and wall-to-floor transition details. It can also be used where membranes have been cut or shaped around pipes, cables, conduits, protrusions or other service details, provided an overlap or joint can be formed and sealed correctly. Its purpose is to maintain continuity between adjoining membrane sheets, so it should be used as part of the complete Platon Waterproof Membrane System. It is especially relevant in basements, cellars and below-ground waterproofing work.
Q) What size is Platon Sealing Tape?
A) Platon Sealing Tape is supplied in 30mm wide x 20m long rolls, with a thickness of 1mm. The 30mm width reflects its purpose as an internal jointing tape for membrane overlaps rather than a wider face-sealing or corner detailing tape. It is designed to sit neatly within the membrane lap, bonding one membrane sheet directly to another without spanning unnecessarily across the exposed face. The 1mm butyl thickness provides a flexible adhesive layer that can conform to the membrane profile and help maintain contact between adjoining sheets. This makes it suitable for controlled sheet-to-sheet jointing in Platon cavity drain membrane installations.
Q) How do you apply Platon Sealing Tape?
A) Platon Sealing Tape should be applied between clean, dry membrane surfaces. The tape is normally positioned along the overlap, flange or stud-into-stud lap, with the backing paper removed gradually as the tape is laid into place. Once the tape is correctly aligned, the adjoining membrane sheet should be pressed firmly against it to complete the bond and seal the joint. Good pressure is important because the butyl needs close contact with both membrane surfaces along the full joint length. In cold, damp or humid site conditions, a heat gun is often used carefully to dry the membrane surface and help improve adhesion before the joint is closed.
Q) Can Platon Sealing Tape be used at wall-to-floor junctions?
A) Platon Sealing Tape can be used at wall-to-floor transition details where wall and floor membranes overlap or connect and require a sealed internal joint. Its main function is still sheet-to-sheet bonding, so it should be positioned within the lap where the two membrane surfaces meet. For broader surface sealing at corners or junctions, Platon Corner Strip Tape may also be required depending on the waterproofing detail. Platon Sealing Tape is not intended to act as a wide cover strip over the face of the joint. It is designed to seal the overlap itself, helping the wall and floor membrane sections become part of one continuous waterproof system.
Q) Can you plaster or render over Platon Sealing Tape?
A) Platon Sealing Tape is not designed to provide a direct plaster or render key. Its job is to create a watertight bond between membrane sheets, not to provide a textured surface for finishing materials to grip. Where Platon Sealing Tape is used with meshed membranes that will receive a direct plaster or render finish, Platon Mesh Tape should be applied above the sealed joint to reinstate the surface key. This allows the sealing tape underneath to maintain the watertight joint, while the mesh tape provides a suitable surface for the finishing coat. Without this additional mesh detail, plaster or render may not bond properly over the joint area.
Q) What are the main limitations of Platon Sealing Tape?
A) Platon Sealing Tape should not be used as a substitute for correct membrane overlap formation, good surface preparation or wider detailing tapes where they are required. It is a double-sided internal jointing tape, designed to sit between membrane sheets, not a surface-applied tape for covering large gaps, exposed edges or broad corner details. It must be applied to clean, dry membrane surfaces because dust, moisture, grease or poor alignment can reduce adhesion and compromise the seal. The joint should be pressed firmly together along its full length to ensure full contact. For corners, protrusions, plasterable finishes or larger surface details, additional Platon tapes may be needed.
- Choosing a selection results in a full page refresh.
