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
Sovereign
Adhesives
Delivery is free to Mainland England and Wales. Deliveries are chargable to Scotland.
Once the order is placed, our courier will call you within 3 working days to arrange a delivery date. If you do not hear from the courier within 3 days, please get in touch with us. The majority of deliveries are made within 7 days, occasionally a little longer during peak periods.
Deliveries are made between 08:00 and 18:00 on the day, we request the driver calls you one hour before with an advised time.
Delivery is made via a kerbside tail lift lorry, we cannot deliver to sloping ground as the tail lift must be able to lay flat.
The road must be wide enough for a lorry to fit down and free from obstruction, if there are any access restrictions, please contact us.
Deliveries must be signed for, please report any damages to us within 24 hours.
We offer all bricks with a tail lift offloading service, Please familiarise yourself with the information below.
Crane offloading is available as a premium service for some bricks.
All of our C16 and C24 graded timber is regularised
Regularised timber is timber that has been processed to have a uniform shape and size. This means that the wood has been sawn and planed to remove any irregularities and ensure that each piece of wood has consistent dimensions. Regularised timber is often used in construction, particularly in the framing of buildings, as it is easier to work with and can be more efficiently installed than irregularly shaped timber.
We have one of the largest ranges of timber lengths, dimensions and grades available to buy online.
The variation you require will determine the exact lead time and delivery method.
Most orders arrive within 3-4 days, the maximum is 7 days. Please get in touch before you order if you need a specifc delivery date.
Delivery charges vary by postcode. To find out the delivery charge, add the item(s) you require to your basket and select CALCULATE SHIPPING at the bottom of the page.
Some orders are delivered on our own vehicles based in Leicestershire and Cheshire. We also use carriers including Yodel and Tuffnells. For some sizes and locations we use regional distributors.
If you'd prefer crane offloading rather than tail lift vehicle offloading for your brick order then this service is available for the majority of bricks that we sell. Charges are shown at checkout.
For deliveries of less than 6 packs then Taillift offloading is normally a more cost effective option
Downloadable information can be found here:
Armstrong Cheshire supply the full range of Catnic Lintels. If you don't see the lintel you need on our website, choose from the Catnic Lintel Selector Brochure and give us a call 01625 322269
Downloadable information can be found here:
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
Sovereign
Adhesives
Delivery is free to Mainland England and Wales. Deliveries are chargable to Scotland.
Once the order is placed, our courier will call you within 3 working days to arrange a delivery date. If you do not hear from the courier within 3 days, please get in touch with us. The majority of deliveries are made within 7 days, occasionally a little longer during peak periods.
Deliveries are made between 08:00 and 18:00 on the day, we request the driver calls you one hour before with an advised time.
Delivery is made via a kerbside tail lift lorry, we cannot deliver to sloping ground as the tail lift must be able to lay flat.
The road must be wide enough for a lorry to fit down and free from obstruction, if there are any access restrictions, please contact us.
Deliveries must be signed for, please report any damages to us within 24 hours.
We offer all bricks with a tail lift offloading service, Please familiarise yourself with the information below.
Crane offloading is available as a premium service for some bricks.
All of our C16 and C24 graded timber is regularised
Regularised timber is timber that has been processed to have a uniform shape and size. This means that the wood has been sawn and planed to remove any irregularities and ensure that each piece of wood has consistent dimensions. Regularised timber is often used in construction, particularly in the framing of buildings, as it is easier to work with and can be more efficiently installed than irregularly shaped timber.
We have one of the largest ranges of timber lengths, dimensions and grades available to buy online. The variation you require will determine the exact lead time and delivery method.
Most orders arrive within 3-4 days, the maximum is 7 days.
Please get in touch before you order if you need a specific delivery date.
Delivery charges vary by postcode. To find out the delivery charge, add the item(s) you require to your basket and select CALCULATE SHIPPING at the bottom of the page. Some orders are delivered on our vehicles based in Leicestershire and Cheshire. We also use carriers including Yodel and Tuffnells. For some sizes and locations, we use regional distributors.
If you'd prefer crane offloading rather than tail lift vehicle offloading for your brick order then this service is available for the majority of bricks that we sell. Charges are shown at checkout.
For deliveries of less than 6 packs then Taillift offloading is normally a more cost effective option
Downloadable information can be found here:
Armstrong Cheshire supply the full range of Catnic Lintels. If you don't see the lintel you need on our website, choose from the Catnic Lintel Selector Brochure and give us a call 01625 322269
Downloadable information can be found here:
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Sovereign
Sovereign SBR Bonding Agent For Render, Screed & Repair
£133.00
Unit price
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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
