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Waterproofing Admixtures, Primers and Pre-Treatments

Specialist waterproofing admixtures, primers, and pre-treatments provide essential solutions for creating durable, water-resistant surfaces in construction and refurbishment projects. Waterproofing admixtures are added to concrete and mortar mixes, improving water resistance from within the material. Primers and pre-treatments ensure strong adhesion of topcoats, sealing substrates against moisture ingress. These products are used in various industries, including construction, infrastructure, and industrial facilities.

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Sika 1 Waterproofer

Sika 1 Waterproofer Liquid Admixture

Sika 1 Waterproofer Liquid Admixture is an aqueous solution containing complex colloidal silicates. In the presence of water these swell and block the capillaries and pores in the applied sand/cement renders, screeds and mortar to provide an effective barrier against the transmission of liquid water. Features and Benefits Proven for more...

Price £55.38 (incl. VAT)
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Mapei Mapethene Primer

Mapei Mapethene Primer

Mapethene Primer is used as a primer for self-adhesive bitumen membranes from the Mapethene line. Ready to use Applied by brush, roller or spray Quick drying Solvent-free Please note this product is subject to a minimum order quantity For professional use only. More Information Delivery Info

Price £20.69 (incl. VAT)
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SikaProof Primer 01

SikaProof Primer 01

SikaProof Primer 01 is solvent-dispersed synthetic rubber and resin based used as a primer for SikaProof waterproofing system to increase the adhesion and bond to the comply substrate.  Features & Benefits High adhesion and bonding ability on various substrates Good binding ability for dust and loose particles Quick drying time,...

Price £147.06 (incl. VAT)
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Fosroc Proofex Primer | Primer For Use With ProofexProducts

Fosroc Proofex Primer

Fosroc Proofex Primer is a primer for use on concrete, masonry and steel prior to application of waterproofing membrane on basements and below ground structures. For use with Proofex products in the Fosroc range. Please see the Product Data Sheet for the relevant base product for application and mixing details for Proofex Primer.

Price £53.71 (incl. VAT)
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Sika CD Anti-Lime Coating

Sika CD Anti-Lime Coating

The Sika CD Anti-Lime Coating is a blend of high-grade silicates and wetting agents, held in suspension with water as a carrier. Once applied to the concrete surface, this unique product seals the concrete surface.  Reduce “Free Lime” leaching from concrete surfaces, an effective Anti-lime coating to new concrete in Cavity Drain systems....

Price £274.01 (incl. VAT)
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Sika 4 Rapid Setting

Sika 4 Rapid Setting

Sika 4 Rapid Setting is a ready to use quick setting leak stopping liquid for use against low water pressure infiltration. It is used to aid the quick setting of cement based renders and concretes where low water pressure or slow moving water exists. Features and Benefits  Ready to use Quick setting Prevents cement wash out Does not...

Price £80.09 (incl. VAT)
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Sikalastic 810

Sikalastic 810

Sikalastic 810 is a two part, polyurethane adhesion promoting bonding bridge for overlapping or overcoating of Sikalastic waterproofing membranes when exceeding the maximum waiting time. Good adhesion on flexible PUR coatings Contains no solvents Fast curing Low material consumption Sprayable Professional use only - from the 24th...

Price £949.99 (incl. VAT)
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Sika BituSeal Primer

Sika BituSeal Primer

A bitumen solution primer to be used in conjunction with Sika BituSeal S-115 to increase adhesion and bond to the substrate.  High adhesion and bonding ability on various substrates Good binding ability for dust and loose particles Ready to use by brush, roller or spray Order a Paint Colour Sample

Price £199.18 (incl. VAT)
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Fosroc Proofex Anti-Lime Coating | Anti-Lime Concrete Sealer

Fosroc Proofex Anti-Lime Coating

Fosroc Proofex Anti-Lime Coating is a water based blend of high performance silicates and wetting agents. When applied to concrete surfaces, a reaction with free lime occurs to provide an effective seal Reduces subsequent leaching of lime into Proofex Cavitydrain installations. Please Note: This product is subject to a 14-21 Working Day...

Price £375.79 (incl. VAT)
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Fosroc Supercast WCP | Hydrophobic Pore-Blocking Concrete Admixture

Fosroc Supercast Watertight Concrete Powder

Fosroc Supercast Watertight Concrete Powder (formerly Conplast WP402) is a hydrophobic, pore-blocking, concrete admixture suitable for use in Type B (Integral) watertight concrete construction as defined in BS 8102: 2009. Designed for use as an integral water resisting admixture for ready mixed concrete Based on a unique blend of fatty...

Price £542.06 (incl. VAT)
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Mapei Purtop Primer FT

Mapei Purtop Primer FT

A two-component ultra-rapid polyurea primer for treating cementitious substrates before applying waterproofing membranes from the Purtop range.  Rapid-curing: 30 minutes (at +23°C and 50% R.H.)  Easy to apply with a roller, trowel or rake  For professional use only  Professional use only - from the 24th August 2023, adequate training...

Price £120.58 (incl. VAT)
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Mapei Plastimul Primer

Mapei Plastimul Primer

Mapei Plastimul Primer is a one-component, solvent-free, bitumen emulsion primer for treating substrates before applying a waterproofing product from the Plastimul range. Even out and improve bonding to the substrate before applying waterproofing products Good workability properties, produced according to a formula developed in MAPEI’s own...

Price £175.42 (incl. VAT)
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Mapei Plastimul C

Mapei Plastimul C

Mapei Plastimul C is a solvent-free concentrated bitumen emulsion for treating substrates before applying waterproofing products from the Plastimul line. Used to even out and improve their adhesion to the bonding surface on concrete or brickwork substrates (vibro-compressed concrete blocks, solid bricks, airbricks, cellular concrete blocks,...

Price £17.22 (incl. VAT)
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Visqueen IGW Admix | Type B Watertight Concrete Protection

Visqueen IGW Admix

Used to provide Type B watertight concrete protection in accordance with BS8102:2022 in reinforced concrete basement walls and floors. Crystalline growth - provides continuous protection for the lifetime of the concrete structure Reduces water penetration - reduced permeability when compared to an equivalent plain concrete Improves...

Price £430.16 (incl. VAT)
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Visqueen CM Anti-Lime Sealer

Visqueen CM Anti-Lime Sealer

Applied to concrete surfaces prior to the installation of a Visqueen cavity membrane system to prevent the leaching of free lime from the concrete substrate. An anti-lime sealer for concrete - reduces risk of cavity membrane system furring up Rapid application - can be applied by brush, roller or spray Concentrated formulation diluted on...

Price £253.30 (incl. VAT)
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Visqueen High Performance Tanking Primer | BBA Certified

Visqueen High Performance Tanking Primer

Used to prepare a variety of substrates including concrete, metal and masonry. It significantly improves the bond of the applied membrane. Designed to prepare surfaces prior to the applications of Visqueen self adhesive membranes and Visqueen TorchOn Tanking Membrane No mixing required - use straight from the tin Rapid cure - quick and...

Price £57.56 (incl. VAT)
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Interior / Exterior Use

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Need Help?

Waterproofing admixtures, primers, and pre-treatments play a critical role in ensuring long-term protection against water damage. These products enhance the structural integrity of materials by preventing moisture penetration, which can lead to deterioration. Whether applied during the construction phase or in refurbishment projects, they deliver lasting performance in challenging environments.

 

Enhancing Durability with Waterproofing Admixtures

Waterproofing admixtures are integral to the production of water-resistant concrete and mortar. By incorporating admixtures into the mix, the concrete becomes water-repellent from within, making it ideal for foundations, basements, and below-ground structures. This internal waterproofing is essential for areas prone to moisture and helps prevent structural damage over time.

 

Creating Effective Barriers with Waterproofing Primers and Pre-Treatments

Primers and pre-treatments prepare surfaces for the application of waterproofing coatings. These products penetrate porous substrates, sealing them and enhancing adhesion for the topcoats. They are used on a wide range of surfaces, from concrete and brickwork to metal, ensuring a durable bond that resists moisture. Common applications include roofs, balconies, and wet rooms, where water resistance is paramount.

Specialist waterproofing solutions are vital in various industries, including construction, infrastructure, and industrial maintenance. For detailed advice on product compatibility and tailored solutions, Rawlins' product support team are waiting for your call.