Fosroc Nitobond SBR Latex Bonding Agent & Waterproofing Admixture – 5 Litre

Fosroc Nitobond SBR Latex Bonding Agent & Waterproofing Admixture – 5 Liters

📋 Product Technical Overview

Product Description

Fosroc Nitobond SBR Latex 5 Liters is a high-performance polymer emulsion used to enhance bonding, flexibility, and waterproofing properties in cement-based materials. It is widely trusted on construction sites as a Fosroc Nitobond SBR bonding agent for joining old concrete to new concrete and improving adhesion in repair works.

This advanced styrene butadiene rubber latex alters the internal structure of cement mortar and slurry, increasing its strength, flexibility, and resistance to water penetration. Because of these properties, it is also a reliable solution for Fosroc SBR latex waterproofing in moisture-prone areas such as bathrooms, terraces, balconies, and water-retaining structures.

Whether you are repairing damaged concrete, applying plaster on smooth surfaces, or preparing polymer-modified screeds, this SBR latex bonding agent for concrete ensures long-term durability and performance.

Key Benefits

Strong Bonding Performance
Acts as a powerful Fosroc Nitobond SBR bonding agent, ensuring excellent adhesion between old and new concrete layers.

Waterproofing Protection
Ideal for Fosroc SBR latex waterproofing, it reduces water absorption and helps prevent dampness and leakage.

Crack Resistance
Improves flexibility in cement mixes, reducing shrinkage cracks.

Higher Durability
Enhances resistance to wear, weather exposure, and mild chemical attack.

Better Workability
Makes mortar mixes smoother and easier to apply.

Multi-Purpose Use
Suitable for bonding coats, repairing mortars, plaster modification, floor screeds, and waterproof renders.

Common Applications

• Bonding new concrete to old concrete

• Concrete repair and patching

• Plaster bonding on RCC surfaces

• Waterproof plaster in bathrooms and balconies

• Polymer-modified floor screeds

• Waterproofing of terraces and water tanks

• Mortar modification for improved performance

Because it functions as a high-strength SBR latex bonding agent for concrete, it is especially important in renovation and structural repair work.

How Fosroc Nitobond SBR Works

When mixed with cement, Fosroc Nitobond SBR forms a flexible polymer network within the cement matrix. This:

• Increases adhesive strength

• Blocks capillary pores to reduce water penetration

• Improves tensile and flexural strength

• Enhances durability under stress and movement

This dual action of bonding and waterproofing makes it an essential construction chemical for professional use.

Method of Application

Surface Preparation
Ensure the surface is clean, rough, and free from dust, oil, grease, or loose particles.

Bonding Slurry Coat
Prepare a slurry using cement, Fosroc Nitobond SBR Latex, and water. Apply with a brush and place fresh mortar or concrete while the coat is still tacky.

Mortar Modification
Add Nitobond SBR Latex to the mixing water before adding cement and sand. Mix thoroughly to get a uniform consistency.

Curing
Cure the applied material properly and protect it from rapid drying.

Why Choose Fosroc Nitobond SBR Latex?

Fosroc is a globally recognized brand in construction chemicals, known for reliability and performance. This product delivers both bonding strength and waterproofing protection in one solution, making it a cost-effective and high-performance choice for repairs and new construction.

If you need a dependable Fosroc SBR latex waterproofing solution that also acts as a Fosroc Nitobond SBR bonding agent, this 5-liter pack is ideal for small- to medium-scale projects.

🔧 Mixing Ratios & Usage Guide

🧱 1. Bonding Slurry (Old Concrete to New Concrete)

Purpose: Bond coat before applying plaster, screed, or repair mortar.

How to Use:

1. Mix SBR Latex with water first

2. Add cement and mix to form a brushable slurry

3. Apply a thin coat on prepared surface

4. Place new mortar/concrete while slurry is still tacky (not dry)

🧱 2. Polymer-Modified Repair Mortar

Purpose: Concrete patch repairs, damaged edges, honeycombs.

Tip: Mix SBR with water first, then add to dry mix.

🧱 3. Waterproof Plaster / Render

Purpose: Bathrooms, balconies, terraces (under tiles or finishing layer)

Improves adhesion and reduces water seepage.

🧱 4. Polymer-Modified Floor Screed

Purpose: Floors needing better strength & crack resistance

Provides flexibility and reduces shrinkage cracks.

🧱 5. Waterproof Bond Coat for Tiles/Toppings

Purpose: Bonding coat before laying screed or tile mortar

Use as a slurry and work wet on wet.

⚠️ Important Rules (Don’t Ignore)

• Always mix SBR with water first, never directly with dry cement

• Do not apply over dusty or oily surfaces

• Never let bonding slurry dry before overlay

• Avoid over-dilution—too much water reduces strength

• Cure modified mortar properly (light water curing after initial set)