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SBR Bonding Agent

Styrene-butadiene rubber latex bonding agent for old-to-new concrete adhesion.

Slurry Bond CoatOld to NewAnti-CarbonationSite Mix
RATIO1 SBR : 1 cement
OPEN TIME20–30 min
COVERAGE0.2 L/m²
SHELF LIFE12 months
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↓ Download Datasheet (PDF)

Overview

Bridges old and new. Without separation.

SBR Bonding Agent is a styrene-butadiene rubber latex used as a bonding agent and admixture for cementitious repairs. Mixed with Portland cement to form a slurry bond coat, it ensures permanent adhesion between freshly placed repair mortar and prepared substrate concrete.

Also used as a mortar admixture to improve flexibility, water resistance, and adhesion of site-batched repair materials.

Key Features

  • Styrene-butadiene rubber emulsion
  • Creates structural bond between old and new concrete
  • Improves flexural strength and water resistance
  • Can be used as bond coat or mortar admixture
  • Anti-carbonation effect – reduces CO2 permeability
  • Easy site mixing with Portland cement

Technical Specs

Technical Specifications

All values measured at 23°C unless noted. Full test data available in the datasheet.

PropertyValueUnit
FormLiquid SBR latex emulsion–
ColourWhite (cures clear)–
Solids content47 ± 2%
Density1.02 ± 0.02g/cm³
pH10–11–
Bond coat ratio1 SBR : 1 cement–
Coverage as bond coat0.2L/m²
Open time20–30min
Admixture dosage5–10L/50kg cement
Application temperature+5 to +35°C
Service temperature−20 to +60°C
Bond strength≥ 1.5MPa
Packaging5 / 20L
StandardsASTM C1059 · BS 6319–

Applications

Where this product is used

Six typical site applications where our crews specify this product.

🔧

Bond coat for repairs

Bonding slurry under fresh repair mortar.

🏭

Screed bonding

Bonding new screed layers to existing concrete.

🏊

Pool finishes

Bond coat under tile-backing mortars in pools.

🌊

Marine repairs

Improved water resistance in tidal-zone repairs.

🏗️

Mortar admixture

Improving flexibility of site-batched mortars.

🚿

Wet area screeds

Bonded screed installation in wet areas.

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