• Written by: Team Vura

Complete Guide to Waterproofing and Repair Using VURA SBR: A Latex-Based Cement Modifier

Waterproofing isn't just a protective measure-it’s an investment in the structural integrity and lifespan of your home. While many homeowners and even contractors focus on large-scale elements like roofing or foundation layout, they often overlook the power of proper material additives. Enter VURA SBR, a modified styrene-butadiene latex that transforms standard cement into a high-performance waterproofing and repair solution.

 

Why VURA SBR Stands Out

VURA SBR isn't just another bonding agent-it enhances workability, prevents cracks, and increases resistance to abrasion, corrosion, and water damage. It improves flexural strength and bonding of cement mixes to concrete, masonry, and plaster surfaces, making it an indispensable part of modern construction and repair work.

Key Benefits:

  • Prevents drying and shrinkage cracks
  • Improves surface hardness and abrasion resistance
  • Reduces dusting and corrosion
  • Strongly bonds to old and new cementitious surfaces
  • Enhances durability of repair mortars, screeds, and renders

 

Targeted Use Cases for VURA SBR

Many waterproofing blogs talk about where to waterproof-foundation, roof, exterior walls-but don’t explain how. VURA SBR allows you to address specific construction problems with tailored solutions.

1. Slurry Bond Coat for Concrete Repairs

Problem: Weak adhesion between old and new concrete layers

Solution:

  • Mix VURA SBR with cement in a 1:1 ratio
  • Apply as a slurry bond coat to a damp, cleaned surface
  • Ensure overlay mortar is applied while the bond coat is tacky

2. Latex-Modified Repair Mortar

Problem: Cracks and patch damage in concrete or plaster

Solution:

  • Mix VURA SBR, cement, and sand in a 1:2:6 ratio
  • Apply on dampened, cleaned surfaces
  • Use for both minor patching and structural render

3. Floor Screed & Plaster Enhancer

Problem: Surface erosion, cracking, or dusting in flooring or plaster

Solution:

  • Mix VURA SBR, water, cement, and sand in a 1:1:5:15 ratio
  • Increases surface hardness and lifespan of screeds and plasters

 

Mixing & Application Best Practices

To get the most out of VURA SBR, follow these professional mixing guidelines:

  • Use a forced action mixer or a spiral paddle fitted to a heavy-duty drill (400–500 RPM)
  • Always add powder to liquid, not the other way around
  • For small repairs (<25kg), hand mixing is allowed
  • Mix components thoroughly to avoid air entrapment

 

FAQ:

What is VURA SBR used for? 

VURA SBR is used as a latex additive to improve the bonding, flexibility, and water resistance of cement-based mixes in waterproofing and repair applications.

Can VURA SBR prevent cracks? 

Yes. VURA SBR significantly reduces shrinkage and drying cracks by increasing flexural strength in cement mortar.

How do you mix VURA SBR with cement? 

Mix in specific ratios depending on the use: 1:1 for bond coat, 1:2:6 for repair mortar, and 1:1:5:15 for screeds and plasters.

Is VURA SBR suitable for waterproofing water tanks? 

Absolutely. Its strong bonding and water resistance make it ideal for internal and external water tank waterproofing.

What makes VURA SBR different from other bonding agents?

Unlike generic bonding agents, VURA SBR improves both waterproofing and durability, while also reducing surface wear and corrosion.

 

Conclusion

The secret to long-lasting waterproofing and repair isn’t just in choosing the right area to treat-it’s in choosing the right product to apply. VURA SBR enables targeted, professional-grade results in everything from minor crack repairs to large-scale waterproofing. With the right mix, method, and application, your structure can stand up to time, weather, and wear.

For professionals and DIYers alike, VURA SBR is more than a bonding agent-it’s a strategic upgrade to every layer of your build.

Looking for a tailored guide or visual step-by-step for your project? Contact our VURA SBR support team for expert advice.