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Structural waterproofing
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Structural waterproofing for basements, podium decks, tunnels and substructures. Type A, B and C systems to BS 8102. Sheet and liquid-applied membranes, cavity drain systems, cementitious slurries and waterproof concrete. Waterstops, injection resins, joint sealants and protection boards. Drainage composites, primers and accessories for new build and refurbishment.
Structural waterproofing - helping you find the best solution for your project.

HydroBond 914-RT – Non-woven Reinforcement Tape
HydroBond 914-RT is a non-woven polypropylene reinforcement tape used with HydroBond 108-LM and HydroBond 109-LM liquid applied membranes and coatings to reinforce detailing around protrusions such as service pipes and over static construction and day joints and covered movement joints. Used with HydroBond 108-LM and HydroBond 109-LM for the
NP Drain - two-ply composite sheet drainage membrane
NP Drain two-ply composite sheet drainage membranes are made from high density polyethylene. They have a high compressive strength and offer drainage and waterproofing for vertical and horiztonal appilications. NP Drain memebranes are comprised of a dimpled sheet that prevents water logging and a geotextile layer that filters out fine soil- PRODUCT
Delta Membrane Systems
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
CDM 508 - 8mm cavity drain membrane for basements
Newton CDM 508 is a BBA-certified, high-quality, 8mm cavity drain waterproofing membrane. It is designed for use within the Newton CDM System for internally applied waterproofing that includes drainage and pumping systems. CDM 508 is suitable for waterproofing earth retained walls and vaulted soffits and floors. It is guaranteed against
Newton CDM System 500 - Type C cavity drain waterproofing system
Newton CDM is a BBA-certified cavity drain membrane from the Newton System 500 range. Used in conjunction with bespoke sump and pump configurations, backup systems, telemetry and ancillary options, Newton CDM provides a reliable and maintainable 'Type C' waterproofing solution for any habitable below-ground space that needs to be completely dry- PRODUCT
Newton Waterproofing
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
Koster 21 solvent-free waterproofer
Koster 21 is a 2-component, solvent-free, liquid applied, elastic, crack bridging waterproofing material that provides excellent adhesion to dry and moist substrates: liquid-applied - it is seamless, easing application to complicated architectural details; UV stable - suitable for indoor and outdoor use; its white color reflects sunlight and
HydroCoat 912-RT - Reinforcement Tape For Liquid Membranes
A reinforcement tape for covering cracks, joints, and changes in direction alongside Newton’s liquid-applied waterproofing membranes and coatings: reinforcement of changes in direction for tanking and deck waterproofing; formation of covered membrane joints; reinforcing liquid membranes over static construction joints. A spun-bond polypropylene
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
Delta MS - high dimple density membranes
Delta MS high dimple density membranes are made of high density polyethylene. They have a high compressive strength and have more than 1800 dimples per metre squared for efficient pressure distribution and low point loads, even on perimeter insulation. Typical applications include sub-base coursing under concrete floor slabs, foundation wall- PRODUCT
Delta Membrane Systems
Delta MS 20 - 20mm cavity drain membrane for floors and walls
Delta MS 20 is an HDPE, dimpled membrane with 20mm studs designed as a seepage layer for damp-proofing applications. Delta® MS 20 is used to waterproof floors, walls and vaulted ceilings where high drainage capacities are required in both above and below ground applications. Supplied in 2m x 20m rolls, DELTA® MS 20 can be applied as horizontal or
Delta MS 500 Fire - fire-retardant Type C cavity drain membrane
Delta MS 500 Fire Retardant is an 8mm-thick studded Type C cavity drainage membrane that has been manufactured with DELTASAFE, an innovative fire-retardant property which enables the product to achieve a Euroclass rating of B-S2, d0 in accordance with EN 13501-1:2018. This fire-retardant high-density polyethylene (HDPE) membrane has an 8mm- PRODUCT
Delta Membrane Systems
Newton HydroTank - Type B waterproofing system
Newton HydroTank is a range of BDA-certified waterbars, waterstops, flanges, sealants and capillary-blocking treatments designed to prevent water penetration through concrete in below-ground structures. HydroTank products are applied to joints and other areas of concrete which are at risk of not otherwise watertight, in order to achieve a Type B- PRODUCT
Newton Waterproofing
HydroBond 403 Plus - hydrophilic and bonding membrane
HydroBond 403 Plus is an extremely high-performance composite sheet waterproofing membrane featuring a locking fleece to one side and a polymer hydrophilic coating to the other. When situated under the new raft or against the wall shuttering the poured concrete engages into the locking fleece so that the membrane is completely locked in and
Koster BDM - high-performing liquid additive for reinforced concrete
Koster BDM is a high-performance liquid additive for reinforced concrete, designed to reduce water absorption, increase compressive strength and improve chemical resistance. Made from a polymer liquid, it crystallises within concrete, blocks capillaries and makes the mix water repellent. Suitable for all Grades under BS 8102:2022 and free from
HydroTank 315 Waterbar – High Grade Hydrophilic Waterbar
HydroTank 315 Waterbar is a hydrophilic, acrylate polymer waterbar, which swells when activated by moisture. it is characterised by high elasticity and high tensile strength. HydroTank 315 Waterbar can be used to seal the structure against water leaks to cast-in-place concrete construction joints. The swelling is achieved through hydrophilic
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
CDM 503 – 3mm Cavity Drain Membrane for Basements
BBA-certified, high-quality, 3mm cavity drain waterproofing membrane. Designed for use within the Newton CDM System for internally-applied waterproofing. For waterproofing earth-retained walls and vaulted soffits and floors. Guaranteed against deterioration for 30 years, with a life expectancy of the design life of the building
NewSeal 408 DeckDrain - Drainage Membrane for Decks & Flat Roofs
NewSeal 408 DeckDrain is a drainage membrane for decks and flat roofs. It is double cuspated, has drainage studs to the upper and lower surfaces, and incorporates a polypropylene geotextile filter layer, bonded to a water-impermeable HDPE (High-Density Polyethylene) core. The double cuspated design gives drainage two layers: firstly, allowing for
Corden EPS GRM waterproofing and gas resistant membrane
The Corden EPS GRM waterproofing and gas resistant membrane is self-adhesive. It provides a continuous waterproofing/tanking system for basements and substructures provided it is used in conjunction with Corden EPS Prime to ensure a suitable bond. The Corden EPS GRM waterproofing and gas resistant membrane is made from a polymer modified bitumen
MemTech Pro Titan Tank - waterproof and ground gas membrane
MemTech’s Pro Titan Tank is a post applied waterproof and ground gas membrane which offers a safe solution for the protection of buildings, structures and occupiers against all levels of Hydrocarbons, VOCs, Methane, Carbon Dioxide and Radon gas ingress. MemTech Pro Titan Tank is a post applied waterproof and hydrocarbon barrier gas membrane. This- PRODUCT
Delta Membrane Systems
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 FlexiDri - plastic watertight wall fixing plugs for membranes
Delta FlexiDri patented watertight fixing plugs have an expandable design and a self-sealing grommet, used for securely fixing membranes to substrates without extra sealing rope. Each plug has a central watertight pin that expands for a firm grip and allows for the installation of wall ties or dry lining systems: expandable watertight fixing plug

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