503 SBR Bond 5 Litre by Everbuild (EVBSBR5L) is a latex-based polymer emulsion used as a bonding agent and admixture for cementitious materials. It improves adhesion, water resistance, flexibility, and overall durability in mixes such as renders, screeds, patching mortars, and tile adhesives. The liquid formulation blends easily into cement and sand mixes and can also be used as a primer/slurry on dense or difficult substrates. Suitable for interior and exterior work, including humid and damp environments, it helps projects perform reliably in challenging conditions. Ideal for use with common site equipment like cement mixers, paddle mixers, and standard rendering or screeding tools, this 5 litre pack provides a practical volume for small to medium repair, renovation, and flooring tasks.

Key Features:
– Latex-based SBR polymer for strong, reliable bonding in cement mixes
– Enhances water resistance and improves performance in damp and humid areas
– Reinforcing action increases flexibility and durability of screeds and renders
– Excellent adhesion to dense concrete, masonry, steel, tiles, and similar substrates
– Anti-foam additive helps control midensity and reduce pinholing
– Freeze-thaw stable for improved frost resistance in exterior applications
– Suitable as an admixture or bonding primer/slurry for cementitious work
– Compatible with standard mixing and application tools; easy to incorporate into site workflows
– 5 litre pack for extensive coverage across repairs, overlays, and resurfacing jobs

Typical Applications:
Use in bonding slurries for patch repairs, as an admixture for floor screeds and levelling layers, in render coats for internal and external walls, and to improve adhesion on dense or smooth surfaces before overcoating. Common in basements, wet rooms, utility areas, and general refurbishment where improved durability and water resistance are required.

Also known as:
SBR bonding agent, styrene-butadiene rubber admixture, latebonding agent, cement modifier, render additive, screed additive, waterproofing admixture, concrete bonding primer, key coat, polymer admixture for mortars.

Product Specifications