Skip to main content
BestLatex R126 - 1

BestLatex R126

New to old concrete bonding and water-proofing agent

Advantages:

  • Increases surface waterproofing for the bonding slurry and the cement-sand mortar system.

  • Significantly increases material bonding strength and the bond between old and new concrete.

  • Reduces shrinkage, limits cracking, increases flexibility and elasticity of the cement-sand mortar system.

  • Increases chemical corrosion resistance and mechanical abrasion resistance compared with traditional cement materials.

  • Suitable for making patching and thin repair layers on defective surfaces.

  • Alkali-resistant and withstands UV degradation.

  • Non-toxic and does not pollute the environment.

  • Meets the requirements for waterproofing domestic water tanks.

Download technical documents

BestLatex R126

Technical summary

Category

Waterproofing & Fillings

New to old concrete bonding and water-proofing agent

BestLatex R126 is a modified Styrene Butadiene-based copolymer emulsion used to mix with cement or cement–sand to increase bonding, waterproofing, mechanical abrasion resistance and chemical corrosion resistance for civil and industrial construction items.

Product data

Composition

Modified Styrene-Butadiene Copolymer.

State

Emulsion, milky white.

Coverage
As bonding slurry1 liter BestLatex R126 / 5 m² effective
As rendering mortar1 liter BestLatex R126 / 2 m² / 1 cm thickness
Packaging

05; 25 liters/can; 210 liters/drum.

Storage

In a cool, dry place at an ambient temperature of 5°C - 35°C.

Shelf life

12 months from the date of manufacture.

pH

8.0 ± 2.0 (25°C).

Density

1.01 ± 0.02 (25°C).

Applications

BestLatex R126 is used in the following applications:

  • Old-to-new concrete bonding coat, treating construction joints and cold joints, etc.

  • Waterproofing coat for concrete, render and fired-brick surfaces, etc.

  • Surface waterproofing for toilet floors, gutters, rooftops, basements, etc.

  • Repair and thin patching mortar for concrete or surface finishing.

  • Abrasion-resistant floor screed mortar.

  • Waterproofing material for masonry, plastering and tile-adhesive mortar, etc.

Advantages

  • Increases surface waterproofing for the bonding slurry and the cement-sand mortar system.

  • Significantly increases material bonding strength and the bond between old and new concrete.

  • Reduces shrinkage, limits cracking, increases flexibility and elasticity of the cement-sand mortar system.

  • Increases chemical corrosion resistance and mechanical abrasion resistance compared with traditional cement materials.

  • Suitable for making patching and thin repair layers on defective surfaces.

  • Alkali-resistant and withstands UV degradation.

  • Non-toxic and does not pollute the environment.

  • Meets the requirements for waterproofing domestic water tanks.

Application instruction

Surface preparation:

  • The concrete surface must be clean, hard and solid, and cleaned of oil, grease, dust, moss/mold, excess cement and other impurities, etc.

  • If the surface has low roughness, it must be roughened by suitable mechanical means before applying the product.

  • Saturate the entire surface with clean water, but do not leave standing puddles on the surface.

Waterproof bonding slurry or old-to-new concrete bonding coat:

  • Mixing ratio: 01 liter BestLatex R126 + 1.5 liters water + 05 kg cement = 4.1 liters of bonding slurry.

  • Application: Add the cement into the pre-measured BestLatex R126 and water mixture and stir until homogeneous. Apply the bonding slurry at a thickness of 1 - 2 mm onto the pre-saturated surface, then place new concrete or apply the waterproof mortar while the cement-BestLatex R126 slurry is still wet.

Waterproof rendering mortar:

  • Mixing ratio: 1 liter BestLatex R126 + 4.5 liters water + 09 kg cement + 27 kg sand = 41.5 kg of mortar.

  • Application: Using a trowel or steel float, firmly apply a mortar layer 1 ÷ 2 cm thick (as required) onto the freshly applied (still wet) waterproof bonding slurry. If the bonding slurry has dried, re-apply it before applying the waterproof rendering mortar.

Notes:

  • BestLatex R126 must always be used together with cement; it should not be used alone as a standalone bonding and waterproofing agent. The sand used must be clean, free of impurities or mud and have a suitable particle-size distribution. The cement must not be lumpy or past its shelf life.

Cleaning:

  • Clean equipment and tools with clean water after application and before the material cures.

Safety guidance:

  • The product may cause irritation to sensitive skin on prolonged contact. Wear a mask, gloves and safety goggles when using the product.

  • If splashed into the eyes, nose or mouth, rinse immediately with plenty of clean water several times before going to the nearest medical facility for timely and proper treatment.

  • Avoid letting the product contact food or household items. Keep out of reach of children. Dispose of excess product at locations designated by local regulations.

BestLatex R126 is a modified Styrene Butadiene-based copolymer emulsion used to mix with cement or cement–sand to increase bonding, waterproofing, mechanical abrasion resistance and chemical corrosion resistance for civil and industrial construction items.