Sovereign SBR Bonding Agent

High-Strength Styrene-Butadiene Polymer Additive for Render, Screed & Repair

A milky-white dispersion of carboxylated styrene-butadiene copolymer specially modified for use as a bonding agent and additive. Unlike PVA, it does not re-emulsify, making it ideal for waterproofing, tanking, and external applications. Provides improved adhesion, flexibility, water/salt resistance, and durability in cement-based systems.

Key Benefits

Product Details

Typical Uses & Mix Ratios

Primer Coat

Apply the primer to porous backgrounds. Render can be applied to either wet or dry primer.

Sealer Coat

Apply to the rear and edges of timber before fitting and tiling to reduce moisture ingress. Do not prime the face to be tiled.

Bonding Coat (Slurry)

Apply the bonding coat while still tacky, before applying renders or screeds.

Safety & Handling

Ideal For

Sovereign
Adhesives

Sovereign SBR Bonding Agent

High-Strength Styrene-Butadiene Polymer Additive for Render, Screed & Repair

A milky-white dispersion of carboxylated styrene-butadiene copolymer specially modified for use as a bonding agent and additive. Unlike PVA, it does not re-emulsify, making it ideal for waterproofing, tanking, and external applications. Provides improved adhesion, flexibility, water/salt resistance, and durability in cement-based systems.

Key Benefits

Product Details

Typical Uses & Mix Ratios

Primer Coat

Apply the primer to porous backgrounds. Render can be applied to either wet or dry primer.

Sealer Coat

Apply to the rear and edges of timber before fitting and tiling to reduce moisture ingress. Do not prime the face to be tiled.

Bonding Coat (Slurry)

Apply the bonding coat while still tacky, before applying renders or screeds.

Safety & Handling

Ideal For

Sovereign
Adhesives
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£133.00

Sovereign SBR Bonding Agent For Render, Screed & Repair


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Sovereign SBR Bonding Agent

High-Strength Styrene-Butadiene Polymer Additive for Render, Screed & Repair

A milky-white dispersion of carboxylated styrene-butadiene copolymer specially modified for use as a bonding agent and additive. Unlike PVA, it does not re-emulsify, making it ideal for waterproofing, tanking, and external applications. Provides improved adhesion, flexibility, water/salt resistance, and durability in cement-based systems.

Key Benefits

  • Superior adhesion to dense or hard-to-bond substrates—concrete, glass, metal, tile & brick
  • Enhances strength & flexibility, reducing cracking, shrinkage, dusting; improves frost resistance
  • Improved water and salt resistance, supports durable external use and tanking systems
  • Non re-emulsifiable—perfect for damp zones, waterproof renders, screeds, and concrete repairs
  • Contains antifoam & antioxidant additives to enhance mix stability and longevity
  • Boosts carbonation protection, safeguarding embedded steel in repairs; increases abrasion resistance

Product Details

  • Form: Milky-white liquid, S.G. approx. 1.01, pH 9–11
  • Solids Content: Around 47% polymer
  • Pack Size: 5 kg tub (also available in larger quantities)
  • Non-combustible & eco-friendly – water-based with no fire hazard

Typical Uses & Mix Ratios

Primer Coat
  • SBR Bonding Agent: 1 part
  • Water: 5 parts

Apply the primer to porous backgrounds. Render can be applied to either wet or dry primer.

Sealer Coat
  • SBR Bonding Agent: 1 part
  • Water: 3 parts

Apply to the rear and edges of timber before fitting and tiling to reduce moisture ingress. Do not prime the face to be tiled.

Bonding Coat (Slurry)
  • SBR Bonding Agent: 1 part
  • Water: 1 part
  • OPC (Ordinary Portland Cement): 1½ parts

Apply the bonding coat while still tacky, before applying renders or screeds.

Safety & Handling

  • Not classified hazardous, but avoid eye/skin contact; wear gloves, goggles, and suitable clothing
  • Can cause mild skin/eye irritation – rinse thoroughly and seek medical advice if necessary
  • Non-flammable, store between +5 °C and +35 °C, protect from frost and direct sun
  • Eco-aware disposal: Avoid drain contamination; dispose per regulations

Ideal For

  • Bonding renders or screeds onto dense, non-porous surfaces
  • Durable external renders, floor toppings, screeds
  • Concrete repairs (steel protection, carbonation resistance)
  • Waterproof/weak substrates—tanking, damp areas, tanking systems

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Sovereign SBR Bonding Agent  For Render, Screed & Repair - Armstrong Cheshire
Sovereign

Sovereign SBR Bonding Agent For Render, Screed & Repair

£133.00

Sovereign SBR Bonding Agent

High-Strength Styrene-Butadiene Polymer Additive for Render, Screed & Repair

A milky-white dispersion of carboxylated styrene-butadiene copolymer specially modified for use as a bonding agent and additive. Unlike PVA, it does not re-emulsify, making it ideal for waterproofing, tanking, and external applications. Provides improved adhesion, flexibility, water/salt resistance, and durability in cement-based systems.

Key Benefits

Product Details

Typical Uses & Mix Ratios

Primer Coat

Apply the primer to porous backgrounds. Render can be applied to either wet or dry primer.

Sealer Coat

Apply to the rear and edges of timber before fitting and tiling to reduce moisture ingress. Do not prime the face to be tiled.

Bonding Coat (Slurry)

Apply the bonding coat while still tacky, before applying renders or screeds.

Safety & Handling

Ideal For

Size

  • 25 Litre
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