Modified styrene-butadiene rubber latex compatible with Portland-cement systems.
Bonding agent & mortar admixture
Core-shield SBR latex
A modified styrene-butadiene rubber latex used as a cement bonding agent and mortar admixture. It improves adhesion, water resistance, flexural strength and durability in repair mortars, plaster, screeds and bonding slurries.
- Improves adhesion between old and new concrete
- Reduces shrinkage cracking and surface dusting
- Enhances water and abrasion resistance
- Suitable for internal and external cementitious works
Pack size, mix ratio and availability are confirmed with your quotation.
Concrete repair solution
Bond coat
Repair mortar
Plaster
Screed
Waterproofing
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Dual-purpose product Use as a bonding slurry or as a mortar and plaster admixture
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Mix guidance Application-based support for bond coat, mortar, plaster and screed
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Project delivery Bulk and contractor supply across Kochi, Ernakulam and Thrissur
Typical specification
The mix ratio changes according to whether the product is used as a bond coat, repair mortar admixture, plaster modifier or waterproof screed component.
Liquid polymer supplied in sealed cans, pails or larger project packs.
Used in cement bonding slurries between prepared old and new concrete surfaces.
Added to repair mortar, plaster or screed to improve performance.
Improves the bond of cementitious materials to concrete and masonry substrates.
Helps reduce water penetration and improves resistance to surface wear.
Supports improved flexibility and helps reduce shrinkage-related cracking.
Remove laitance, loose material, oil, paint and grease before application.
Pack sizes depend on current stock, manufacturer and project requirement.
Mixing tip: A bonding slurry, repair mortar and waterproof screed do not use the same ratio. Share the application and approximate quantity before ordering.
Common applications
Suitable for concrete repair, bonding, plaster, screed and cementitious waterproofing works.
Old-to-new concrete
Bonding slurry between prepared existing and newly placed concrete.
Repair mortars
Polymer modification for patching, edge repair and local concrete restoration.
Waterproof plaster
Improved water resistance and adhesion in cement plaster applications.
Floor screeds
Modified screeds with better bonding, flexibility and durability.
External rendering
Polymer-modified render for exposed exterior walls and repair zones.
Tile bedding mortar
Improves the adhesion and performance of compatible cement-based bedding mortar.
Reinforcement priming
Used in compatible cementitious primer systems before patch repair.
Sunken slab screeds
Polymer-modified mortar and screed in wet-area construction details.
Masonry repairs
Bonding and repair of compatible concrete, blockwork and masonry substrates.
Improved cement performance
Why choose Core-shield SBR latex?
Polymer modification improves the bond, water resistance, flexibility and durability of compatible cementitious repair and finishing systems.
Discuss your requirementStronger adhesion
Improves bonding between cementitious materials and prepared substrates.
Water resistance
Helps produce tighter mortar, plaster and screed systems.
Reduced shrinkage
Supports better crack control in compatible repair and topping mixes.
Improved flexibility
Enhances flexural performance compared with unmodified cement mortar.
Abrasion resistance
Improves wear resistance in compatible screeds and repair mortars.
Multiple applications
One product can support bonding, repair, plaster and screed requirements.
Customer feedback
Trusted for repair-product supply and support
“The team explained the correct use of SBR latex for old-to-new concrete bonding.”
“Quick quotation and helpful guidance for repair mortar and waterproof plaster.”
“Good support in estimating the product quantity for screed and patch-repair work.”
Frequently asked questions
Before you place an order
What is Core-shield SBR latex?
It is a modified styrene-butadiene rubber latex used with cement as a bonding agent and polymer admixture for mortar, plaster and screed.
Can it bond new concrete to old concrete?
Yes. It is commonly used in a cement bonding slurry applied to a properly prepared existing concrete surface before placing new concrete or mortar.
Can it be mixed directly into repair mortar?
Yes. It may be added through the gauging liquid of compatible cement-based repair mortar, subject to the recommended application ratio.
Does the same mix ratio work for every application?
No. Bond coat, plaster, repair mortar and screed applications require different proportions. Follow the product data sheet and application guidance.
How should the surface be prepared?
Remove loose concrete, laitance, paint, oil, grease and dust. The surface must be sound and prepared before applying the bond coat or mortar.
Can it improve waterproof plaster?
It improves adhesion and water resistance in compatible cement plaster, but the full waterproofing system must follow the project specification.
Can it be used in floor screeds?
Yes. It is commonly used in polymer-modified screeds to improve bond, flexibility, durability and resistance to surface wear.
Can it reduce cracking?
Polymer modification can help reduce shrinkage cracking and improve flexibility, but proper mix design, thickness, curing and joint detailing are still required.
Can you help calculate the required quantity?
Yes. Share the application, total area, thickness and approximate mortar quantity so the team can help estimate pack requirements.
Is bulk delivery available?
Bulk and contractor supply is available across Kochi, Ernakulam, Thrissur and surrounding project locations, subject to stock and delivery planning.