Concrete additives such as bonding agents, or concrete bonding adhesives, include a choice of different products and materials that can be effectively used to create a strong bond between new and old concrete surfaces. This allows the two concrete surfaces to effectively become one. As a result, concrete bonding agents are an important step in project such as concrete repair, bonding new concrete to old concrete, reinforcing construction joints, or creating a strong bond for a sand-cement repair mortar.
Different Types of Concrete Bonding Agents and Adhesives
Acrylic bonding agents are primarily used to bond fresh concrete with the surface of old concrete. Milky white in colour, acrylic latex bonding agents are usually quickly and easily applied directly to the existing concrete surface by brush, trowel or roller.
Styrene Butadiene (SBR) bondng agents are made up of polymers and co-polymers that are compatible with cementitious compounds and usually contain approximately 55% solid content. SBR bonding agents can be used for bonding fresh concrete to old concrete, as a surface primer and sealer, and as an admixture to provide improved flexiblity and tensile strength, and reduced shrinkage, to concrete and mortar mixes.
Polyvinyl Acetate (PVA) bonding agents are mainly used for providing a strong bond with cement-based mixes when carring out repair works in concrete. Howver, it also has applications in plastering, tiling and carpentry, providing an excellent bond for many common building materials.
Why Do You Need a Concrete Bonding Agent?
By using a bonding agent between different concrete surfaces, it ensures that the finished concrete structure is more structurally sound than if the two areas of placed concrete had no bond between them. As the cement within a concrete mix does not contain any natural bonding agents of its own, simply applying fresh concrete on top of or alongside existing concrete will not create a permanent join between the two surfaces, making them more susceptible to structural issues, as well as more prone to allow water or gas to enter.
Contact BaseTec - Complete Systems. Reliably Delivered.
If you require assistance with concrete additives or need advice on which concrete additive product is best suited for your requirements, contact our friendly teams in Kent - 01732 906 826 - or Leeds - 0113 521 6789.
Return to our full range of
Construction Chemicals.
Fast Delivery 
Expert Support
Low Trade Prices
Quality Products
