XcelHard SBR

XcelHard SBR is a styrene–butadiene copolymer latex liquid used as a polymer modifier for concrete and cement mortar. It is ideal for waterproofing and repairing damaged or spalled concrete.
  • Provides excellent bond strength to existing surfaces.
  • Makes the structure highly impermeable to liquids.
  • Improves chemical, abrasion, and impact resistance.
  • Enhances flexural strength and reduces cracking.
  • Minimizes shrinkage cracks.
  • Increases reusability, reduces waste, and saves material.
  • Offers excellent resistance in both internal and external repairs.
Parameter Details
Solid 35%
Specific 1.03 g/cc
pH 9-10
Pot Life 1 hour

 

Parameter Details
Solid 45%
Specific 1.03 g/cc
pH 9-10
Pot Life 1 hour

METHOD 1 – SBR AS BONDING COAT (BONDING SLURRY)

STEP 1 – SURFACE PREPARATION
Clean the surface thoroughly. Remove dust, loose particles, laitance, oil, paint, and any weak material.

STEP 2 – DAMPEN THE SURFACE
Pre-wet the surface with clean water. The surface should be damp (SSD condition) with no standing water.

STEP 3 – PREPARE BONDING SLURRY
Prepare a brushable slurry by mixing SBR Latex + Cement until a smooth paste is formed.

STEP 4 – APPLY BONDING SLURRY
Apply the slurry evenly using a brush on the prepared surface.

STEP 5 – APPLY MORTAR / PLASTER (WET-ON-WET)
Apply mortar/plaster/concrete while the bonding coat is still wet and tacky to ensure maximum bond strength.

METHOD 2 – SBR AS ADMIXTURE IN MORTAR / PLASTER

STEP 1 – SURFACE PREPARATION
Ensure the surface is clean and free from dust, loose particles, oil, and contaminants.

STEP 2 – PREPARE THE MIX
Dry mix cement and sand thoroughly.

STEP 3 – PREPARE LIQUID MIX
Mix SBR Latex with clean water as per recommended dosage.

STEP 4 – MIX MORTAR
Add the SBR-water solution gradually into the dry mix and mix until a uniform, lump-free mortar is obtained.

STEP 5 – APPLICATION
Apply the mortar/plaster as required using standard tools and methods.

STEP 6 – CURING
Cure properly using clean water or curing compound to achieve maximum strength and durability.