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Structural waterproofing systems
Structural waterproofing systems for basements, foundations, tunnels, podium decks and water-retaining structures. Type A membranes and slurries; Type B waterproof concrete and admixtures; Type C cavity drain membranes, channels, sumps and pumps; waterstops, injection resins; protection boards, drainage composites, primers and tapes.
Structural waterproofing systems - helping you find the best solution for your project.

Koster NB1 Grey mineral waterproofing slurry system
Koster NB1 Grey is a BBA certified mineral waterproofing slurry system containing crystallising and capillary-plugging agents for sealing against pressurised water. It can be used for waterproofing against ground moisture, non-pressurised and pressurised water in new buildings and restoration. It has a watertight (>130 m water head), mineral
Delta ventilated damp proofing systems
Delta ventilated waterproofing systems are recommended for above ground situations or in areas where no free running water is expected, for example where external pavements have been built up. Ventilated system have an air gap at top and bottom. All joints and fixings are sealed. This method is a sympathetic solution in Heritage properties as a
TRADECC PC Leakinject Hydrogel 6880 Polyurethane Injection Resin
A single component polyurethane injection resin that provides a flexible seal in voids and non-structural cracks, or reacts with water to form a flexible, closed-cell foam. The resin is able to seal both pressurised and non-pressurised leaks, whilst its flexibility makes it ideal for applications where movement is expected. PC Leakinject Hydrogel
Koster SB Bonding Emulsion - liquid mortar and plaster bonding additive
Koster SB Bonding Emulsion is a synthetic liquid additive for cement-based mortars, plasters, sealing slurries and concrete, made from a solvent, plasticiser, and filler-free dispersion. Increases flexibility, elasticity and water resistance in mineral systems, and improves bond strength and workability. Waterproof after application and suitable
Koster Injection Gel G4 - acrylic waterproofing gel for masonry injection
Koster Injection Gel G4 is a low-viscosity, water-based acrylic gel made for curtain injection and sealing masonry against water ingress. Designed for waterproofing below-ground structures, it can be injected into fine pores and mortar joints, and is suitable for both new builds and repairs. Swells after curing to absorb extra water and is applied
Delta Roof Guard - cold liquid-applied waterproofing
Delta Roof Guard cold liquid-applied waterproofing is based on the most advanced polyurethane technology. Being simple to install, fast-curing, flexible and long-lasting makes Delta Roof Guard suitable for use in all kinds of waterproofing projects, including flat or sloping roofs, podium decks, balconies, walkways, terraces, car parks and for- PRODUCT
Delta Membrane Systems
Koster Repair Mortar Plus - cement repair mortar for watertight patching
Koster Repair Mortar Plus is a fast setting, slightly expanding, watertight repair mortar made for use on mineral substrates. Suitable for internal and external repairs, it adheres well to old and new surfaces and can be used as a polymer-modified cement concrete mortar with Koster SB Bonding Emulsion
Koster KB-Fix 5 - fast-setting waterproof and weatherproof mortar
Koster KB-Fix 5 is an extremely fast-setting, waterproof and weatherproof mortar made for quick repairs and installations in plaster, masonry and concrete. Designed for indoor and outdoor use, it is suitable for filling holes and cracks, anchoring fittings and sealing pipe penetrations
Newton HydroTank - Type B integral below-ground structures waterproofing
Newton HydroTank System is an integral Type B waterproofing system designed to make below-ground concrete structures watertight by sealing joints and penetrations. Uses BDA certified waterbars, waterstops, flanges, sealants, and capillary blocking treatments. Designed in line with BS 8102:2022 and BS EN 1992 for structural waterproofing: integral- PRODUCT
Newton Waterproofing
Newton Hydrobond - Type A external below ground waterproofing system
Newton HydroBond System is a Type A external waterproofing system for below-ground structures, made from a range of sheet and liquid-applied membranes. Designed to create a continuous barrier against water and ground gases, it can be pre-applied or post-applied to concrete slabs and walls. Suitable for use where protection from groundwater, radon- PRODUCT
Newton Waterproofing
Newton Hydrocoat System - Type A internal waterproofing solution
Newton HydroCoat System is an internal Type A waterproofing solution designed to resist water ingress in existing structures. Applied as a liquid membrane, it creates a barrier on internal surfaces to block moisture. Suitable for use on damp or saturated substrates, it is quick to apply and compatible with other waterproofing types for combined- PRODUCT
Newton Waterproofing
Newton CDM System 500 - Type C cavity drain waterproofing system
Newton CDM System is a Type C cavity drain waterproofing system designed to manage water ingress in basements and below-ground structures. System includes BBA certified membranes, drainage conduits, sump chambers, pumps, and control systems. Suitable for new-build and refurbishment projects where a dry internal environment is required: cavity- PRODUCT
Newton Waterproofing
Oldroyd® Xtf - tunnel waterproofing and fire-resistant membrane
Oldroyd® Xtf is a waterproof, fire-resistant membrane designed to protect tunnels from the damaging effects of dripping water. It consists of a profiled, studded and grooved flame-retardant polypropylene (PP) sheet, approximately 1mm thick, onto which is laminated a high tensile strength, fire-resistant woven fabric of basaltic mineral fibres. The
TRADECC PC 509 Z Acryl – Flexible Acrylic Injection Resin
A four-part acrylic injection resin with a controllable reaction time and low viscosity, making it ideal for sealing fine cracks, wet or dry, deep into the substrate. The resin can also be injected into the HydroTank 302 InjectionHose system to provide a maintainable Type B waterproofing solution. PC 509 Z Acryl is a four-part injection resin with
Koster KD System - waterstop waterproofing system
The Koster KD System stops active water ingress and safely seals off pressurised water from the negative side. It is resistant to salts which are harmful to the building structure, and to aggressive substances which are present in the ground. Salts will not detach the fully cured Koster KD System coating from the substrate: koster KD 1 Base Fast- PRODUCT
Delta Membrane Systems
Koster Repair Mortar NC - fibre-reinforced concrete repair / levelling mix
Koster Repair Mortar NC is a fibre-reinforced repair mortar and plaster made for structurally-relevant repair, touch-up of voids and levelling of concrete defects. Suitable for horizontal and vertical surfaces, it has high adhesion to mineral substrates, low shrinkage and strong chemical and mechanical resistance
PC Leakinject UNI 6816 E - polyurethane injection resin
PC Leakinject UNI 6816 E is a single-component PU resin and catalyst with low viscosity suitable for water-sealing big gaps, cracks, or water leaks with high pressure or flow. Reacts in contact with water to form a semi-rigid foam: forms a hard, high-strength seal within the structural crack or joint; penetrates deep into fine structural cracks
NB Elastic Grey - cement waterproof coating for basements and wet rooms
NB Elastic Grey is a waterproof, elastic coating made for mineral surfaces, designed to resist wear, bridge cracks up to 2mm, and withstand dilute acids and alkalis. Suitable for new builds and repairs, it cures quickly and can be applied in seamless layers for durable protection in demanding environments
Delta sealed structural waterproofing systems
Delta sealed systems are recommended for below ground waterproofing where soil is retained, for example, basements and vaults. Membrane selection depends on the required finish and flow rate if applicable. All membrane junctions, fixing points, service entries and other protrusions are sealed with the Delta Seal range of sealing products. Where
Koster BD Wetroom Tanking System
The Koster BD Wet Room Tanking Kit is a ready-to-use, seamless waterproofing set featuring the highly elastic, waterproof acrylic-based material, Koster BD 50 and all its components combined in one package: 2kg of BD50 Primer; 10kg of BD50 Compound; 15 metres of Koster Super Fleece; 1 outlet sleeve. BD 50 Primer A water-dilutable, low viscous- PRODUCT
Delta Membrane Systems
Structural waterproofing systems - helping you find the best companies for your project.
Delta Membrane Systems
Manufactures cavity drainage membrane systems for internal and external damp-proof control and gas resistance. The polyethylene membranes feature studs which create a continuous air gap behind the membrane, to isolate walls from new finishes and to allow ventilation of the wall. The membranes can be used externally as a waterproof protection and
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DELTA House, Merlin Way, North Weald, Epping, CM16 6HRNewton Waterproofing
The Newton System 100 range of cement-based is designed for making repairs to structural concrete. It can be used in conjunction with the Newton System 500 range of cavity drain membrane systems. The Newton System 500 range is designed to create an internally applied waterproofing system based on cavity drain membranes, drainage systems and
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Newton House, 17-19 Sovereign Way, Tonbridge, TN9 1RH- Claro Road, Harrogate, HG1 4DS
- Unit 12, Hainge Road, Tividale, Oldbury, B69 2NH

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