SBR Latex (5L) | SBR Admixture & Additive

SBR bond for concrete, mortar and renders, 5L

Strucsol SBR Latex (5L) is an SBR bonding agent and SBR admixture designed as an integral adhesive for cement bond coats, mortars and concrete. It improves bond strength, flexibility, waterproofing and chemical resistance for new construction, repairs and restoration.

In stock and available for next day delivery, Strucsol's SBR Latex contains neat ingredients with no watering down, helping deliver reliable performance in cementitious applications. Also searched as SBR latex, latex SBR, SBR additive, SBR bond and SBR 5 litre.

What is SBR?

SBR stands for Styrene-Butadiene Rubber. SBR latex is used in construction to enhance the performance of cement-based building materials, improving durability, flexibility and water resistance. As an SBR bond and admixture, it supports applications ranging from bonding coats to modified mortars, cement screeds and concrete repairs.

Applications and uses of SBR bonding agent

Concrete modification

• Improved Flexibility: SBR latex is added to concrete mixes to increase flexibility, reducing the risk of cracking under stress or temperature changes.
• Enhanced Adhesion: It improves the bond between new and old concrete, making it ideal for repair work.
• Waterproofing: Reduces permeability, making concrete more resistant to water ingress and corrosion.

Mortar and grout additive

• Strength and Durability: Used in mortars and grouts to improve tensile strength and resistance to abrasion.
• Crack Resistance: Helps prevent shrinkage cracks in tile adhesives and rendering.

Waterproofing membranes

SBR latex is a key component in liquid-applied waterproofing membranes for roofs, balconies, and basements, providing a seamless, durable barrier against water. If you are looking for tanking membranes specific to this purpose, see Safeseal DPM: Liquid Damp Proofing Membrane.

Repair and restoration

• Structural Repairs: Used in repair mortars for damaged concrete structures, bridges, and tunnels to restore integrity and extend lifespan.
• Surface Coatings: Applied as a protective coating to concrete surfaces to guard against chemical attack and weathering.

SBR bonding between cement-based layers

Acts as a bonding agent between layers of screeds, renders, and concrete overlays, ensuring strong adhesion.

Features and benefits

• Reduces cracking through increased mortar flexural strength
• Increases wear resistance under rubber wheeled traffic
• Improves bond strengths to hardened concrete
• Increases durability during freeze/thaw cycles
• Increases mortar tensile strength
• Increases water resistance ( for tanking )
• Increases resistance to salt attack in cement based renders.

Suitable applications

• Waterproofer for cement based renders
• Salt inhibitor for renovation renders
• Toppings, repairs, and levelling concrete surfaces
• Thin sets, terrazzo, stucco, and bonding coats
• General reconstruction work/latex modified overlays
• Bridge decks, highways, and parking decks

SBR bond: frequently asked questions

How to use SBR bonding agent?

The application depends on the work being carried out. This SBR latex is designed for cement bond coats and as an admixture in mortars and concrete. For the bond SBR provides between new and existing cement-based layers, use the application method specified for your repair or construction system. Confirm the required preparation, mixing proportions and application timing with Strucsol before starting; this overview does not provide a product-specific mixing recipe.

Can SBR be used as a primer?

If your specification calls for SBR to be used as a primer, confirm the suitability of this product and the required method with Strucsol before application. Its stated bonding-coat and admixture uses should not be taken as confirmation that it is suitable beneath every coating or finish.

Can you paint over SBR bond?

Do not assume compatibility with your chosen paint. The product information on this page does not specify a paint-over system or overcoating time. Confirm suitability and preparation requirements with Strucsol and the paint manufacturer before painting over SBR bond.

If you are looking for a coloured waterproofing paint, take a look at our Safeseal Damp Proofing Membrane.

Specifications / Compliances

• Complies with ASTM C1059-86, Type II
• Canadian MTQ
• SBR LATEX is classified by The American Concrete Institute as a non-re-emulsifiable bonding admixture

Product documentation

View the linked SBR Latex MSDS for safety information.