Wacker BS290 Water Repellent

General-Purpose, Durable Silicone Sealant for Sealing, Glazing & Waterproofing

Product Specifications

Packaging Size: Available in bulk packs (as supplied)
Packaging Type: Can / Drum
Colour: Clear (Transparent Liquid)
Brand: Wacker
Product Type: Silane-Siloxane Based Water Repellent
Compatible Materials: Concrete, Brick, Cement Plaster, Masonry Surfaces
Country of Origin: Made in India
Availability: In Stock

We Only Deals in Bulk Quantity

Wacker BS290 Water Repellent

Product Overview

Wacker BS290 Water Repellent is a high-performance, silane-siloxane based water repellent solution developed to protect porous mineral building materials from water penetration and long-term moisture damage. It is specially engineered to penetrate deep into the substrate and create a durable hydrophobic barrier without blocking the natural breathability of the surface.

In modern construction, protecting buildings from water ingress is essential to maintain structural integrity and visual appearance. Wacker BS290 addresses this need by offering an advanced solution that not only prevents water absorption but also allows internal moisture vapor to escape. This dual functionality helps in maintaining a healthy and long-lasting building envelope.

Wacker BS290 Water Repellent is widely used in residential, commercial, and industrial construction projects where exterior surfaces are exposed to rain, humidity, and environmental stress. Its deep penetration capability and long-term effectiveness make it a preferred choice among contractors, builders, and waterproofing professionals.


Product Form & Characteristics

Wacker BS290 Water Repellent is supplied as a clear, ready-to-use liquid, ensuring easy handling and straightforward application across different types of surfaces.

Key Characteristics:

  • Transparent liquid formulation
  • Silane-siloxane based technology
  • Deep penetrating solution
  • Non-film forming
  • Ready-to-use (no dilution required)

Because it does not form a visible coating, Wacker BS290 Water Repellent preserves the original look and texture of the surface, making it ideal for architectural finishes and exposed façades.


Key Features & Benefits

Wacker BS290 Water Repellent offers multiple performance advantages that make it suitable for long-term exterior protection.

1. Deep Penetration into Substrates

The silane-siloxane formulation allows the product to penetrate deeply into porous materials such as concrete, brick, and plaster. This ensures protection from within rather than just on the surface.

2. Strong Water Repellency

After application, the treated surface becomes highly resistant to water absorption. Rainwater is repelled effectively, reducing the chances of seepage and dampness.

3. Breathable Protection

Unlike conventional waterproof coatings, Wacker BS290 allows water vapor to escape from the substrate. This prevents moisture buildup inside the structure and reduces long-term damage.

4. Non-Film Forming Technology

Since the product does not create a surface film, there is no risk of peeling, flaking, or cracking over time. This ensures durability and low maintenance.

5. Long-Term Outdoor Performance

Wacker BS290 Water Repellent is designed to withstand:

  • UV radiation
  • Rain and humidity
  • Temperature fluctuations
  • Environmental exposure

6. Preserves Surface Appearance

Being a clear solution, it does not significantly alter the natural colour or texture of the treated material.


Performance & Protection

Wacker BS290 Water Repellent provides long-lasting protection against various moisture-related problems that commonly affect building surfaces.

Helps Prevent:

  • Dampness and water seepage
  • Efflorescence (white salt deposits)
  • Surface staining and discoloration
  • Cracking due to moisture cycles
  • Structural deterioration over time

By reducing capillary water absorption, it enhances the lifespan of building materials and maintains the overall strength of the structure.


How Wacker BS290 Water Repellent Works

Wacker BS290 Water Repellent works through advanced silane-siloxane chemistry. When applied, the active ingredients penetrate into the pores of the substrate and chemically bond within the material.

Working Mechanism:

  • Forms a hydrophobic (water-repelling) lining inside pores
  • Prevents water from entering the structure
  • Allows trapped moisture vapor to escape

This ensures effective waterproofing without sealing the surface completely, which is essential for maintaining structural health.


Applications / Uses

Wacker BS290 Water Repellent is suitable for a wide range of exterior construction and waterproofing applications:

  • Exterior concrete and RCC surfaces
  • Cement plastered walls
  • Brickwork and blockwork
  • Masonry structures
  • Building façades exposed to rain and humidity
  • Waterproofing treatment for porous mineral substrates

It is especially effective in regions with high rainfall or humidity, where moisture protection is critical.


Suitable Substrates

Wacker BS290 Water Repellent performs best on porous mineral surfaces such as:

  • Concrete
  • Brick
  • Cement plaster
  • Stone (porous types)
  • Masonry

It is not recommended for non-porous surfaces like glass, metal, or plastic, as penetration is necessary for effectiveness.


Application Method

Wacker BS290 Water Repellent is easy to apply and does not require specialized tools or complex procedures.

Application Tools:

  • Brush
  • Roller
  • Low-pressure spray

Basic Application Steps:

  1. Clean the surface to remove dust, dirt, oil, and loose particles
  2. Ensure the surface is dry before application
  3. Apply evenly until the surface is fully saturated
  4. Allow the product to penetrate and cure naturally

Proper surface preparation and application are key to achieving optimal performance.


Why Choose Wacker BS290 Water Repellent?

Wacker BS290 Water Repellent stands out as a reliable and efficient solution for protecting building surfaces against moisture damage.

Key Reasons to Choose:

  • Advanced silane-siloxane formulation
  • Deep penetration and internal protection
  • Long-lasting water repellency
  • Maintains breathability of the structure
  • No change in surface appearance
  • Low maintenance and high durability

It is a practical choice for both new construction and renovation projects.


Availability in Delhi & Supply Support

Wacker BS290 Water Repellent is available in ready stock in Delhi through Poly Prime Industry.

Customer Benefits:

  • Genuine Wacker material
  • Immediate availability for urgent requirements
  • Bulk supply for large projects
  • Professional support for contractors and builders

This ensures timely delivery and smooth execution of construction and waterproofing projects.


Frequently Asked Questions (FAQs)

Q1. What is Wacker BS290 mainly used for?

Wacker BS290 is used to protect porous mineral surfaces such as concrete, brick, and plaster from water penetration while maintaining breathability.

Q2. Does BS290 change the surface appearance?

No. It is a clear solution that does not significantly alter the natural appearance of treated surfaces.

Q3. Is BS290 suitable for exterior applications?

Yes. It is specifically designed for exterior building surfaces exposed to rain, humidity, and environmental conditions.

Q4. Can it prevent dampness and efflorescence?

Yes. By reducing water absorption, it helps prevent dampness, efflorescence, and surface staining.

Q5. How long does the protection last?

It provides long-lasting performance depending on surface condition, exposure, and correct application.

Q6. Is Wacker BS290 available in Delhi?

Yes. Poly Prime Industry currently has Wacker BS290 Water Repellent available in stock in Delhi.


Conclusion

Wacker BS290 Water Repellent is a reliable and high-performance solution for protecting exterior building surfaces from water damage while maintaining their natural appearance and breathability. Its silane-siloxane based formulation ensures deep penetration and long-term protection without the limitations of traditional surface coatings.

By effectively reducing water absorption and preventing common issues such as dampness, efflorescence, and surface degradation, Wacker BS290 enhances the durability and lifespan of structures. Its ease of application, invisible protection, and low maintenance requirements make it an ideal choice for contractors, builders, and waterproofing professionals.

When sourced from Poly Prime Industry, customers are assured of genuine Wacker products, consistent availability, and professional support for bulk and project-based requirements—making it a smart investment for long-term building protection.