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Building Chemicals
Building chemicals are essential to construction, repair, and surface preparation. They improve concrete and mortar performance, waterproof substrates, and enhance coating adhesion. Products include plasticisers, bonding agents, waterproofers, curing aids, primers, accelerators, and additives, all designed to tackle site challenges and improve durability when used with bagged materials. Ideal for floors, basements, screeds, and more, they suit internal and external use on concrete, render, screed, blockwork, and masonry. Reliable across DIY and commercial projects, these solutions are trusted by professionals for their consistency, ease of use, and compatibility.
Fosroc Cebex 100
Fosroc Cebex 100 is an expanding and plasticising powder admixture for site batched cementitious grouts where a reduced water/cement ratio and positive expansion is required. Applications include bed grouting, duct grouting, non-shrink infilling and jointing. Cebex 100 is a suitable pre-stressing grout admixture when complying with BS 8110...
Fosroc Nitoprime Zincrich Plus
Fosroc Nitoprime Zincrich Plus is the recommended anti-corrosion primer for exposed steel reinforcement for use with Fosroc concrete repair mortars. Fully compatible with all Renderoc mortars and fluid micro-concretes Complies with LU Standard 1-085 ‘Fire Safety Performance of Materials’. BS EN 1504-7: Reinforcement corrosion protection...
Fosroc Renderoc Primer
Fosroc Renderoc Primer is a high performance polymer/ cement slurry primer for use in conjunction with Fosroc cementitious repair materials. Two component cementitious slurry material comprising specially selected cementitious powders and liquid polymer additives The primer facilitates bond strengths conforming to the classification of the...
SikaBond SBR+
SikaBond SBR+ is a white liquid, which has numerous uses as an admixture, primer, bonding agent and sealer. Polymer Emulsions of this type have been used extensively over the last 20 years by the building industry as an admixture for cement and concrete applications, including repair and renovation, surfacing of floors and bonding generally....
Sika Monotop 1010
Sika MonoTop-1010, bonding primer and reinforcement corrosion protection cement based slurry containing recycled waste materials, for use with concrete and steel. Suitable for control of anodic areas (Principle 11, method 11.1 of EN 1504-9) Interior and exterior use Easy to use, just add water Good resistance to water and chloride...
Ronacrete Curing Membrane
Spray applied curing membrane for mortars and concrete repair, flooring and renders, foming a surface barrier slowing the rate of moisture loss. Reduces chances of cracking Supplied ready to use Good coverage - 5.0-6.5m2 per litre Ronacrete Curing Membrane - For professional and industrial use More Information Delivery Info
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Building Chemicals for Construction & Waterproofing - Admixtures, Primers & Additives
Building chemicals are used to modify, enhance, or prepare materials and surfaces in the construction process. They are integral to both new-build and refurbishment work, offering improvements in adhesion, waterproofing, setting time, flexibility, and resistance to weather or mechanical stress. These products allow tradespeople to overcome on-site challenges and achieve reliable results in demanding environments, including damp conditions, low temperatures, or where substrates are uneven or contaminated.
Our selection includes building supplies such as concrete and screed admixtures to improve flow, strength, or curing; bonding agents to connect new materials to old; waterproofing additives for damp-prone areas; and surface primers that improve the adhesion of paints, renders, or tanking systems. We also stock release agents for formwork, curing compounds for Cement and Concrete slabs, and corrosion inhibitors to protect embedded steel from rust.
Building Chemicals FAQs
Are building chemicals suitable for DIY use?
Yes, many building chemicals are user-friendly and suitable for DIY projects. Products like plasticisers, SBR bonding agents, and damp sealers can be applied with basic tools and are ideal for repairs, waterproofing, and surface preparation. Always follow the manufacturer’s instructions and wear appropriate safety gear.
Can I use multiple building chemicals together?
Some building chemicals are compatible and designed to work within a system, such as a primer followed by a waterproofing layer. However, not all products are interchangeable or mixable. Always check compatibility in the product datasheet or consult technical support before combining systems.
Do I need a primer before applying waterproofing or coatings?
In many cases, yes. A primer helps to seal and stabilise the surface, ensuring good adhesion and uniform performance of the topcoat. It also reduces porosity, which can otherwise lead to patchy coverage or reduced effectiveness of waterproofing systems.