🔴 Fosroc Nitobond SBR 300 – SBR Latex Bonding Agent for Screed, Plaster & Concrete Repair

🧱 High Performance SBR Bonding Agent for Stronger, Crack-Free Construction

Fosroc Nitobond SBR 300 is a premium quality styrene butadiene rubber (SBR) latex bonding agent specially designed to improve adhesion, strength, flexibility, and water resistance of cement-based materials. It is widely used by contractors, builders, tile applicators, and repair professionals for plaster bonding, screed bonding, concrete repair, and waterproofing applications.

If you are facing problems like plaster debonding, cracks in screed, weak repair mortar, or water seepage, this product directly solves those issues by creating a strong chemical bond between the base surface and new cement layer.

🔍 Why Fosroc Nitobond SBR 300 is the Right Choice

Unlike normal bonding solutions, Fosroc Nitobond SBR 300 penetrates into cement structure and forms a flexible polymer film, which improves the mechanical and physical properties of mortar and plaster.

It delivers:

• Higher bonding strength

• Reduced shrinkage cracks

• Better tensile and flexural strength

• Improved water resistance

• Better durability in internal & external conditions

This makes it ideal for new construction as well as repair work.

🏗️ Common Applications

This product is extremely versatile and can be used in multiple construction situations:

✔ Floor Screeds

Used as bonding coat before laying floor screed to ensure proper adhesion and prevent delamination.

✔ Wall Plaster

Improves bonding of plaster on RCC surfaces, old concrete, and brick masonry.

✔ Concrete Repair Work

Perfect for repairing damaged concrete, honeycombs, and patch repairs.

✔ Waterproofing Base Coat

Acts as a polymer modifier in waterproof mortar for bathrooms, terraces, balconies, and water tanks.

✔ Tile Laying Base

Used below tile adhesive screed to strengthen base layer and avoid hollow tiles.

🧪 Technical Strength Benefits

When mixed with cement mortar, Nitobond SBR 300 enhances:

• Bond Strength → Strong grip between old and new concrete

• Compressive Strength → More load bearing capacity

• Flexural Strength → Reduces chances of cracking

• Abrasion Resistance → Longer surface life

• Water Resistance → Reduced permeability

This is why professionals prefer Fosroc SBR bonding agent over local or generic latex products.

⚙️ How to Use (Application Guide)

1. Surface Preparation

• Remove dust, grease, laitance, loose particles

• Make surface rough for better bonding

• Pre-wet surface (SSD condition – damp but no standing water)

2. Bond Coat Slurry

Mix:

• Fosroc Nitobond SBR 300 : Water : Cement = 1 : 1 : 2

Apply with brush to create bonding layer.

3. Mortar / Plaster Application

Apply screed or plaster while bonding slurry is still tacky. This ensures monolithic bonding.

💡 Key Advantages

✔ Single component – easy to use
✔ Improves adhesion on old & new concrete
✔ Reduces shrinkage and cracks
✔ Enhances durability of screed and plaster
✔ Improves water resistance in cementitious systems
✔ Compatible with cement, sand, and repair mortar
✔ Ideal for both interior and exterior use

📦 Packaging & Coverage of Fosroc Nitobond SBR 300

• Pack Size: 1 Litre Bottle

• Coverage: Approx. 4 to 6 square meters per litre (depending on surface and dilution ratio)

• Shelf Life: 12 months in sealed condition

🏪 Available in Jaipur

You can buy Fosroc Nitobond SBR 300 in Jaipur at:

Royal Trading Co., Shop No 8 Sunny Mart, Near PNB Bank, New Aatish Market, Jaipur 302020

We supply original Fosroc materials for contractors, builders, and retail customers.

❓ Frequently Asked Questions (FAQ)

Q1. What is Fosroc Nitobond SBR 300 used for?

It is used as a bonding agent and polymer modifier for plaster, screed, and repair mortar.

Q2. Can it be used for waterproofing?

Yes, it improves water resistance and is commonly used in waterproof plaster systems.

Q3. Can it be used on old concrete?

Yes, it is specially designed to bond new mortar to old concrete surfaces.

Q4. Is it suitable for tile work?

Yes, it is used under screed before tile fixing to improve base strength.

Q5. What is the mixing ratio?

Standard bonding slurry ratio is 1:1:2 (SBR : Water : Cement).