Newton CDM Rope
Newton CDM Rope (Newton product reference A6) is a flexible butyl rubber sealing rope used within the Newton CDM Waterproof Membrane System to form watertight seals around fixing plugs, membrane joints, service penetrations and irregular detailing points.
Supplied as a 10mm diameter solid butyl bead in 4.75m rolls, it can be cut, shaped, wrapped and compressed by hand to suit the exact sealing detail required. It is particularly useful where flat jointing tapes cannot form a complete seal, such as around pipes, plugs, protrusions, vaulted ceilings, sloping soffits and awkward membrane junctions.
Newton CDM Rope remains flexible and tacky, allowing it to conform to membrane profiles and substrate irregularities while maintaining a reliable compressed seal. It is frequently used alongside Newton CDM Joint Tape and Newton CDM Overtape to complete the sealed waterproofing detail.
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Available on most mainland UK orders
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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 Newton CDM Rope
✔️ Flexible 10mm butyl sealing rope forms watertight seals around fixing plugs, penetrations and irregular membrane details.
✔️ Remains tacky and permanently flexible, conforming to membrane profiles and substrate irregularities when compressed.
✔️ Ideal where flat tapes cannot fully seal pipes, protrusions, vaulted ceilings, sloping soffits or awkward junctions.
✔️ Wraps around Newton NuSeal or Newtonite Mesh Plugs to create compressed butyl grommets for secure overhead membrane sealing.
✔️ Supplied in 4.75m rolls, the solid bead is easily cut, shaped and compressed by hand.
Specialist Butyl Rope For Complex CDM Waterproofing Details
Newton CDM Rope is a specialist butyl rubber sealing rope designed for use with Newton cavity drain membranes and waterproof membrane installations. While Newton CDM Joint Tape is suited to flat, linear membrane overlaps and sheet-to-sheet joints, Newton CDM Rope is intended for three-dimensional sealing details where a tape cannot easily sit flat or maintain full contact. Its bead format allows the material to be shaped around fixing plugs, pipe penetrations, protrusions, corners, irregular substrate details and membrane interruptions. This makes it especially valuable where the continuity of the waterproof layer needs to be maintained across difficult or awkward areas within the cavity drain membrane system.
Permanently Flexible 10mm Butyl Bead For Watertight Sealing
Manufactured from a high quality butyl rubber compound, Newton CDM Rope is extruded into a continuous 10mm diameter bead. Butyl rubber is widely used in below-ground waterproofing because it offers strong water resistance, reliable adhesion, flexibility and long-term durability in damp environments. The rope remains tacky and permanently flexible, allowing it to bed into small surface irregularities and maintain close contact with both the membrane and the fixing or service detail. When compressed within the waterproofing detail, the butyl forms a watertight seal that helps prevent water, dampness and moisture from tracking through membrane penetrations, interruptions or poorly sealed junctions.
Reliable Sealing Around Fixings, Joints And Service Penetrations
Newton CDM Rope has three main uses within waterproof membrane detailing: sealing membrane fixings, supporting difficult membrane joints and forming watertight details around penetrations. It is particularly useful around fixing plugs such as Newton NuSeal Plugs and Newtonite Mesh Plugs, where it forms a compressed butyl grommet between the plug and membrane. This makes it well suited to overhead fixing on vaulted ceilings, brick arches and sloping soffits where a conventional washer may not seat reliably. It can also be used where a flange joint or stud-into-stud lap has not been formed, as well as around pipes, conduits, cables and other service penetrations that interrupt the waterproof envelope.
| Technical Information | |
|---|---|
| Specification | Detail |
| Newton Product Reference | A6 |
| Material | Butyl rubber compound |
| Rope Size | 10mm diameter |
| Roll Length | 4.75m |
| Format | Solid sealing bead |
| Main Use | Sealing irregular details |
| Suitable Details | Plugs, joints, penetrations |
| Fixing Use | Around NuSeal Plugs |
| Application Method | Cut, shape and compress |
| Compatible System | Newton CDM system |
| Seal Function | Forms watertight compression seal |
| Surface Requirement | Clean, dry surfaces |
| Application Area | Below-ground waterproofing |
| Typical Use | Overhead and sloping details |
| Used With | Joint Tape and Overtape |
Product Benefits
-
Flexible Butyl Rope Format: Newton CDM Rope can be cut, shaped, wrapped and pressed by hand to suit individual fixing points, pipe penetrations, protrusions and irregular membrane details, making it more adaptable than flat tape for awkward waterproofing areas.
-
Effective Fixing Plug Seal: When wrapped around Newton NuSeal Plugs, Newtonite Mesh Plugs or other compatible fixing plugs, the rope compresses between the plug head and membrane to form a watertight grommet around the fixing penetration.
-
Suitable For Three-Dimensional Details: The bead format allows the product to seal around shapes that flat tapes cannot cover properly, including pipes, services, plug heads, curved surfaces, corners, uneven substrate areas and shaped membrane cut-outs.
-
Permanently Flexible And Tacky: The butyl rubber remains flexible and adhesive, allowing it to maintain contact with the membrane and surrounding detail even where there is minor movement, vibration or slight irregularity in the substrate.
-
Useful For Overhead And Sloping Fixings: Newton CDM Rope is particularly useful on vaulted ceilings, brick arches, sloping soffits and overhead membrane installations, where conventional sealing washers may not sit correctly or compress evenly.
-
Supports Waterproofing Continuity: By sealing fixing points, service entries and non-standard joints, the rope helps maintain a continuous waterproof layer across areas where the membrane has been interrupted, cut or shaped.
-
Compatible With Newton CDM Accessories: Newton CDM Rope is frequently used alongside Newton CDM Joint Tape and Newton CDM Overtape, allowing installers to complete both flat membrane joints and more complex waterproofing details within the same system.
-
Controlled Length And Reduced Waste: Supplied in 4.75m rolls, the rope can be cut to the exact length required for each fixing, joint or penetration, helping installers use only the amount needed for the specific sealing detail.
Typical Applications
-
Sealing Newton Fixing Plugs: Newton CDM Rope is used around fixing plugs such as Newton NuSeal Plugs and Newtonite Mesh Plugs to form a compressed waterproof gasket between the plug and the cavity drain membrane.
-
Vaulted Ceilings And Sloping Soffits: Particularly suitable for overhead waterproof membrane installations, including vaulted ceilings, brick arches and sloped surfaces, where a standard sealing washer may not seat reliably against the membrane.
-
Service Penetration Sealing: Used around pipes, cables, conduits and other services passing through the membrane, helping pack and seal the gap so the waterproof membrane layer remains continuous around the penetration.
-
Irregular Protrusion Detailing: Suitable for sealing around structural protrusions, brackets, penetrations and awkward shapes where the membrane has been cut or formed and a flexible butyl rope seal is required.
-
Non-Standard Membrane Jointing: Can be used at overlapping membrane sections where a flange joint or stud-into-stud joint has not been formed, helping create a sealed detail where standard jointing methods are not practical.
-
Basement Waterproofing Installations: Used within Newton CDM waterproofing systems in basements, cellars and below-ground structures to seal fixing points, penetrations and complex details as part of the overall cavity drain membrane installation.
-
Detailing With CDM Joint Tape And Overtape: Commonly used in combination with Newton CDM Joint Tape and Newton CDM Overtape to complete a fully sealed membrane installation, with each product used for the detail it is best suited to.
Q) What is Newton CDM Rope used for?
A) Newton CDM Rope is used to create watertight seals around fixing plugs, membrane penetrations, service entries, irregular junctions and awkward detailing points within the Newton CDM Waterproof Membrane System. Unlike flat jointing tapes, it is a flexible 10mm diameter butyl rubber bead that can be cut, shaped, wrapped and compressed by hand. This makes it especially useful where a standard tape cannot sit flat or make full contact, such as around pipes, plugs, protrusions, vaulted ceilings, brick arches and sloping soffits. When compressed, Newton CDM Rope helps seal gaps and maintain waterproofing continuity around details that would otherwise be difficult to protect properly.
Q) How does Newton CDM Rope work?
A) Newton CDM Rope works by compression. The butyl rope is positioned around the fixing, pipe, joint or detailing point, then compressed by the plug, membrane or adjoining waterproofing element. Because it remains flexible and tacky, it beds into small surface irregularities and forms close contact with the membrane and surrounding detail. This creates a watertight seal that helps prevent water, dampness or moisture from tracking through penetrations, gaps or awkward junctions. Its 10mm solid bead format allows the installer to use exactly the amount needed, shaping it into rings, strips or packed sections depending on the detail. Correct compression is essential for reliable sealing performance.
Q) Where should Newton CDM Rope be used?
A) Newton CDM Rope should be used where a waterproof membrane detail cannot be sealed reliably with flat tape alone. Typical uses include fixing plug seals, service penetrations, pipes, cables, conduits, protrusions, irregular junctions, membrane cut-outs and awkward shaped areas. It is particularly useful on vaulted ceilings, brick arches, sloping soffits and overhead membrane installations where conventional sealing washers may not sit evenly against the membrane. It can also be used on non-standard membrane joints where a flange joint or stud-into-stud lap has not been formed. Its role is to help maintain waterproofing continuity across complex details within Newton CDM basement and cavity drain membrane installations.
Q) Can Newton CDM Rope be used to seal membrane fixing plugs?
A) Yes, Newton CDM Rope is commonly used to seal membrane fixing plugs within Newton cavity drain membrane systems. A small ring of rope can be wrapped around the head or neck of compatible fixings such as Newton NuSeal Plugs or Newtonite Mesh Plugs before the plug is driven home. As the fixing is tightened or hammered into position, the butyl compresses between the plug and the membrane, forming a waterproof grommet around the penetration. This is especially useful where a washer may not seat correctly, such as overhead fixing points, vaulted ceilings, brick arches or sloping soffits. The rope should be compressed firmly to create a complete seal.
Q) Is Newton CDM Rope suitable for pipes and service penetrations?
A) Newton CDM Rope is well suited to sealing around pipes, cables, conduits and other service penetrations passing through waterproof membranes. These details are often difficult to seal with tape alone because the membrane has to be cut around a three-dimensional object, leaving an irregular gap or edge. The rope can be shaped by hand, wrapped around the service and packed into the gap to create a compressed butyl seal. This helps keep the waterproofing layer continuous around the interruption. For best results, the membrane and service surface should be clean and dry, and the rope should be pressed firmly into place so it maintains full contact around the penetration.
Q) How is Newton CDM Rope different from Newton CDM Joint Tape?
A) Newton CDM Rope and Newton CDM Joint Tape are used for different sealing details within the Newton CDM Waterproof Membrane System. Newton CDM Joint Tape is a flat double-sided tape used for linear sheet-to-sheet joints, such as membrane overlaps, flanges and stud-into-stud laps. Newton CDM Rope is a 10mm diameter butyl bead used for three-dimensional or irregular details where flat tape cannot sit properly. This includes fixing plugs, pipes, protrusions, vaulted ceilings, sloping soffits and non-standard joints. In many installations, both products are used together. Joint Tape handles the clean, flat membrane lap, while Newton CDM Rope seals the awkward areas that need a shaped, compressible bead.
Q) What size is Newton CDM Rope supplied in?
A) Newton CDM Rope is supplied as a 10mm diameter solid butyl rubber bead in 4.75m rolls. The bead format is important because it allows the installer to cut off only the amount required for each fixing, penetration or detailing point. A short length can be wrapped into a ring around a fixing plug, while longer lengths can be used along awkward joints, shaped membrane cuts or service penetrations. The 10mm diameter provides enough material to compress and fill irregular gaps, while still being manageable by hand on site. This controlled format helps reduce waste and makes the product adaptable for varied basement waterproofing details.
Q) What are the main limitations of Newton CDM Rope?
A) Newton CDM Rope should not be treated as a substitute for correct membrane installation, proper fixing, good joint design or suitable use of Newton CDM Joint Tape and Newton CDM Overtape where those products are required. It is best suited to shaped, irregular and compressed sealing details, not broad flat membrane laps that should be sealed with the correct tape system. Surfaces should be clean and dry before application, and the rope must be firmly compressed to form a reliable seal. If it is simply placed loosely against a detail without pressure, its performance will be reduced. It should be used as part of the full Newton CDM Waterproof Membrane System, not as a standalone waterproofing solution.
Key Features of Newton CDM Rope
✔️ Flexible 10mm butyl sealing rope forms watertight seals around fixing plugs, penetrations and irregular membrane details.
✔️ Remains tacky and permanently flexible, conforming to membrane profiles and substrate irregularities when compressed.
✔️ Ideal where flat tapes cannot fully seal pipes, protrusions, vaulted ceilings, sloping soffits or awkward junctions.
✔️ Wraps around Newton NuSeal or Newtonite Mesh Plugs to create compressed butyl grommets for secure overhead membrane sealing.
✔️ Supplied in 4.75m rolls, the solid bead is easily cut, shaped and compressed by hand.
Specialist Butyl Rope For Complex CDM Waterproofing Details
Newton CDM Rope is a specialist butyl rubber sealing rope designed for use with Newton cavity drain membranes and waterproof membrane installations. While Newton CDM Joint Tape is suited to flat, linear membrane overlaps and sheet-to-sheet joints, Newton CDM Rope is intended for three-dimensional sealing details where a tape cannot easily sit flat or maintain full contact. Its bead format allows the material to be shaped around fixing plugs, pipe penetrations, protrusions, corners, irregular substrate details and membrane interruptions. This makes it especially valuable where the continuity of the waterproof layer needs to be maintained across difficult or awkward areas within the cavity drain membrane system.
Permanently Flexible 10mm Butyl Bead For Watertight Sealing
Manufactured from a high quality butyl rubber compound, Newton CDM Rope is extruded into a continuous 10mm diameter bead. Butyl rubber is widely used in below-ground waterproofing because it offers strong water resistance, reliable adhesion, flexibility and long-term durability in damp environments. The rope remains tacky and permanently flexible, allowing it to bed into small surface irregularities and maintain close contact with both the membrane and the fixing or service detail. When compressed within the waterproofing detail, the butyl forms a watertight seal that helps prevent water, dampness and moisture from tracking through membrane penetrations, interruptions or poorly sealed junctions.
Reliable Sealing Around Fixings, Joints And Service Penetrations
Newton CDM Rope has three main uses within waterproof membrane detailing: sealing membrane fixings, supporting difficult membrane joints and forming watertight details around penetrations. It is particularly useful around fixing plugs such as Newton NuSeal Plugs and Newtonite Mesh Plugs, where it forms a compressed butyl grommet between the plug and membrane. This makes it well suited to overhead fixing on vaulted ceilings, brick arches and sloping soffits where a conventional washer may not seat reliably. It can also be used where a flange joint or stud-into-stud lap has not been formed, as well as around pipes, conduits, cables and other service penetrations that interrupt the waterproof envelope.
| Technical Information | |
|---|---|
| Specification | Detail |
| Newton Product Reference | A6 |
| Material | Butyl rubber compound |
| Rope Size | 10mm diameter |
| Roll Length | 4.75m |
| Format | Solid sealing bead |
| Main Use | Sealing irregular details |
| Suitable Details | Plugs, joints, penetrations |
| Fixing Use | Around NuSeal Plugs |
| Application Method | Cut, shape and compress |
| Compatible System | Newton CDM system |
| Seal Function | Forms watertight compression seal |
| Surface Requirement | Clean, dry surfaces |
| Application Area | Below-ground waterproofing |
| Typical Use | Overhead and sloping details |
| Used With | Joint Tape and Overtape |
Product Benefits
-
Flexible Butyl Rope Format: Newton CDM Rope can be cut, shaped, wrapped and pressed by hand to suit individual fixing points, pipe penetrations, protrusions and irregular membrane details, making it more adaptable than flat tape for awkward waterproofing areas.
-
Effective Fixing Plug Seal: When wrapped around Newton NuSeal Plugs, Newtonite Mesh Plugs or other compatible fixing plugs, the rope compresses between the plug head and membrane to form a watertight grommet around the fixing penetration.
-
Suitable For Three-Dimensional Details: The bead format allows the product to seal around shapes that flat tapes cannot cover properly, including pipes, services, plug heads, curved surfaces, corners, uneven substrate areas and shaped membrane cut-outs.
-
Permanently Flexible And Tacky: The butyl rubber remains flexible and adhesive, allowing it to maintain contact with the membrane and surrounding detail even where there is minor movement, vibration or slight irregularity in the substrate.
-
Useful For Overhead And Sloping Fixings: Newton CDM Rope is particularly useful on vaulted ceilings, brick arches, sloping soffits and overhead membrane installations, where conventional sealing washers may not sit correctly or compress evenly.
-
Supports Waterproofing Continuity: By sealing fixing points, service entries and non-standard joints, the rope helps maintain a continuous waterproof layer across areas where the membrane has been interrupted, cut or shaped.
-
Compatible With Newton CDM Accessories: Newton CDM Rope is frequently used alongside Newton CDM Joint Tape and Newton CDM Overtape, allowing installers to complete both flat membrane joints and more complex waterproofing details within the same system.
-
Controlled Length And Reduced Waste: Supplied in 4.75m rolls, the rope can be cut to the exact length required for each fixing, joint or penetration, helping installers use only the amount needed for the specific sealing detail.
Typical Applications
-
Sealing Newton Fixing Plugs: Newton CDM Rope is used around fixing plugs such as Newton NuSeal Plugs and Newtonite Mesh Plugs to form a compressed waterproof gasket between the plug and the cavity drain membrane.
-
Vaulted Ceilings And Sloping Soffits: Particularly suitable for overhead waterproof membrane installations, including vaulted ceilings, brick arches and sloped surfaces, where a standard sealing washer may not seat reliably against the membrane.
-
Service Penetration Sealing: Used around pipes, cables, conduits and other services passing through the membrane, helping pack and seal the gap so the waterproof membrane layer remains continuous around the penetration.
-
Irregular Protrusion Detailing: Suitable for sealing around structural protrusions, brackets, penetrations and awkward shapes where the membrane has been cut or formed and a flexible butyl rope seal is required.
-
Non-Standard Membrane Jointing: Can be used at overlapping membrane sections where a flange joint or stud-into-stud joint has not been formed, helping create a sealed detail where standard jointing methods are not practical.
-
Basement Waterproofing Installations: Used within Newton CDM waterproofing systems in basements, cellars and below-ground structures to seal fixing points, penetrations and complex details as part of the overall cavity drain membrane installation.
-
Detailing With CDM Joint Tape And Overtape: Commonly used in combination with Newton CDM Joint Tape and Newton CDM Overtape to complete a fully sealed membrane installation, with each product used for the detail it is best suited to.
Q) What is Newton CDM Rope used for?
A) Newton CDM Rope is used to create watertight seals around fixing plugs, membrane penetrations, service entries, irregular junctions and awkward detailing points within the Newton CDM Waterproof Membrane System. Unlike flat jointing tapes, it is a flexible 10mm diameter butyl rubber bead that can be cut, shaped, wrapped and compressed by hand. This makes it especially useful where a standard tape cannot sit flat or make full contact, such as around pipes, plugs, protrusions, vaulted ceilings, brick arches and sloping soffits. When compressed, Newton CDM Rope helps seal gaps and maintain waterproofing continuity around details that would otherwise be difficult to protect properly.
Q) How does Newton CDM Rope work?
A) Newton CDM Rope works by compression. The butyl rope is positioned around the fixing, pipe, joint or detailing point, then compressed by the plug, membrane or adjoining waterproofing element. Because it remains flexible and tacky, it beds into small surface irregularities and forms close contact with the membrane and surrounding detail. This creates a watertight seal that helps prevent water, dampness or moisture from tracking through penetrations, gaps or awkward junctions. Its 10mm solid bead format allows the installer to use exactly the amount needed, shaping it into rings, strips or packed sections depending on the detail. Correct compression is essential for reliable sealing performance.
Q) Where should Newton CDM Rope be used?
A) Newton CDM Rope should be used where a waterproof membrane detail cannot be sealed reliably with flat tape alone. Typical uses include fixing plug seals, service penetrations, pipes, cables, conduits, protrusions, irregular junctions, membrane cut-outs and awkward shaped areas. It is particularly useful on vaulted ceilings, brick arches, sloping soffits and overhead membrane installations where conventional sealing washers may not sit evenly against the membrane. It can also be used on non-standard membrane joints where a flange joint or stud-into-stud lap has not been formed. Its role is to help maintain waterproofing continuity across complex details within Newton CDM basement and cavity drain membrane installations.
Q) Can Newton CDM Rope be used to seal membrane fixing plugs?
A) Yes, Newton CDM Rope is commonly used to seal membrane fixing plugs within Newton cavity drain membrane systems. A small ring of rope can be wrapped around the head or neck of compatible fixings such as Newton NuSeal Plugs or Newtonite Mesh Plugs before the plug is driven home. As the fixing is tightened or hammered into position, the butyl compresses between the plug and the membrane, forming a waterproof grommet around the penetration. This is especially useful where a washer may not seat correctly, such as overhead fixing points, vaulted ceilings, brick arches or sloping soffits. The rope should be compressed firmly to create a complete seal.
Q) Is Newton CDM Rope suitable for pipes and service penetrations?
A) Newton CDM Rope is well suited to sealing around pipes, cables, conduits and other service penetrations passing through waterproof membranes. These details are often difficult to seal with tape alone because the membrane has to be cut around a three-dimensional object, leaving an irregular gap or edge. The rope can be shaped by hand, wrapped around the service and packed into the gap to create a compressed butyl seal. This helps keep the waterproofing layer continuous around the interruption. For best results, the membrane and service surface should be clean and dry, and the rope should be pressed firmly into place so it maintains full contact around the penetration.
Q) How is Newton CDM Rope different from Newton CDM Joint Tape?
A) Newton CDM Rope and Newton CDM Joint Tape are used for different sealing details within the Newton CDM Waterproof Membrane System. Newton CDM Joint Tape is a flat double-sided tape used for linear sheet-to-sheet joints, such as membrane overlaps, flanges and stud-into-stud laps. Newton CDM Rope is a 10mm diameter butyl bead used for three-dimensional or irregular details where flat tape cannot sit properly. This includes fixing plugs, pipes, protrusions, vaulted ceilings, sloping soffits and non-standard joints. In many installations, both products are used together. Joint Tape handles the clean, flat membrane lap, while Newton CDM Rope seals the awkward areas that need a shaped, compressible bead.
Q) What size is Newton CDM Rope supplied in?
A) Newton CDM Rope is supplied as a 10mm diameter solid butyl rubber bead in 4.75m rolls. The bead format is important because it allows the installer to cut off only the amount required for each fixing, penetration or detailing point. A short length can be wrapped into a ring around a fixing plug, while longer lengths can be used along awkward joints, shaped membrane cuts or service penetrations. The 10mm diameter provides enough material to compress and fill irregular gaps, while still being manageable by hand on site. This controlled format helps reduce waste and makes the product adaptable for varied basement waterproofing details.
Q) What are the main limitations of Newton CDM Rope?
A) Newton CDM Rope should not be treated as a substitute for correct membrane installation, proper fixing, good joint design or suitable use of Newton CDM Joint Tape and Newton CDM Overtape where those products are required. It is best suited to shaped, irregular and compressed sealing details, not broad flat membrane laps that should be sealed with the correct tape system. Surfaces should be clean and dry before application, and the rope must be firmly compressed to form a reliable seal. If it is simply placed loosely against a detail without pressure, its performance will be reduced. It should be used as part of the full Newton CDM Waterproof Membrane System, not as a standalone waterproofing solution.
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