Everbuild 503 SBR Bond Waterproof Primer Bonding Agent 2.5 Litre SBR2L

Everbuild SBR Bond 503 Waterproof Bonding Agent primer and Additive 2.5 Litre Tub

Barcode: 5029347613624

MPN: SBR2L

Sika Code: 489469

Size: 2.5 Litre Tub

Colour: White Liquid

Everbuild SBR Bond in a handy middle size 2.5 Litre tub, it Improves adhesion to a wide range of substrates in the building industry has excellent resistance to water so suited to external and internal applications has a high level of resistance to salt permeation and has been designed specifically for use in the building industry as a general purpose bonding agent primer and additive for concrete and plasters and as a multi-use adhesive.

• 503 SBR Bond from Everbuild is a liquid, which has numerous uses as an , primer, bonding agent and sealer.
• SBR Bond is a white Polymer Emulsions used extensively over the last 20 years by the building industry as an admixture for cement and concrete applications,
• including repair and renovation, surfacing of floors and bonding generally.
• SBR contains anti-foam to control the density of cementitious mixes.
• An essential part of todays building products.

Everbuild 503 SBR Bond Waterproof Primer and Bonding Agent – 2.5 Litre is a high-performance, versatile product designed for professional-grade construction and renovation projects. Supplied in a convenient 2.5 litre container, this advanced formula acts as a primer, bonding agent, and admixture, delivering exceptional adhesion, durability, and water resistance. Ideal for use with cement-based applications, it enhances the flexibility, strength, and waterproofing properties of mortars, screeds, and renders. Whether you’re preparing a surface, improving mortar performance, or ensuring a reliable bond, Everbuild 503 SBR Bond ensures long-lasting results even in challenging environments. Perfect for interior and exterior use, it is a trusted solution for professionals and DIY enthusiasts alike, offering consistent and reliable performance.

503 SBR-Bond Benefits:

• Greatly improved adhesion to a wide range of substrates including dense concrete, steel, tiles etc.
• Mixes may be applied in much thinner sections.
• Excellent resistance to water and water vapour.
• Aids in the adhesion of self-levelling compounds to the base surface.
• Gives A high level of resistance to salt permeation.
• Much improved toughness and flexibility.
• Reduced surface dusting of concrete.
• Greatly improved resistance to many chemicals.
• ideal for use in dairy parlours etc.
• Reduced water: cement ratio for equivalent workability.
• Improved frost resistance.
• SBR Bond is also freeze thaw stable.

Areas of Use:

• Admixture for mortar, screeds, renders.
• Bonding agent for screeds, renders, Self-Levellers.
• Primer and sealer in tiling applications.
• Flexibliser for cementitious based tile adhesive when tiling on wooden, asphalt floors.
• In addition, SBR Bond has the advantage over PVA bonding aids in that its not adversely affected in wet conditions and is therefore recommended for exterior use.

FAQs About Everbuild 503 SBR Bond Waterproof Primer and Bonding Agent – 2.5 Litre

1. What is Everbuild 503 SBR Bond used for?
   Everbuild 503 SBR Bond is a versatile product that can be used as a primer, bonding agent, or admixture. It is commonly applied to enhance the adhesion and flexibility of mortars, screeds, and renders, ensuring long-lasting performance in construction and renovation projects. Its waterproofing properties make it particularly suitable for areas exposed to moisture, such as bathrooms, kitchens, and external walls.

2. How does this product improve waterproofing in construction?
   The SBR (Styrene Butadiene Rubber) formula creates a water-resistant barrier when used as an admixture or primer. This prevents water penetration in cement-based applications, making it ideal for waterproofing screeds, renders, and repairs. It is especially effective for damp environments, providing long-term protection against water damage.

3. Can this product be used in exterior applications?
   Yes, Everbuild 503 SBR Bond is designed for both interior and exterior use. Its durable, weather-resistant properties make it suitable for outdoor applications such as repairing masonry, sealing concrete, or enhancing the performance of external renders and screeds.

4. What surfaces can Everbuild 503 SBR Bond be applied to?
   It is compatible with a wide range of surfaces, including concrete, masonry, plaster, and porous substrates. As a primer, it prepares these surfaces by improving adhesion and reducing porosity, ensuring that subsequent layers bond effectively.

5. How does it perform as an admixture?
   When added to mortar or screeds, Everbuild 503 SBR Bond significantly enhances their flexibility, adhesion, and resistance to cracking. It also improves workability, making it easier to apply, and increases the durability of the final mix, ensuring it withstands wear and environmental stress over time.

6. Is Everbuild 503 SBR Bond suitable for DIY use?
   Absolutely. While it is widely used by professionals, its straightforward application process makes it a great choice for DIY enthusiasts. The 2-litre size is particularly convenient for smaller projects or occasional use, providing excellent results without requiring specialized tools or equipment.

7. How should the product be applied for best results?
   As a primer or bonding agent, apply the product undiluted or diluted with water (depending on the application) using a brush or roller. Allow it to become tacky before proceeding with the next layer. When used as an admixture, mix it directly into the mortar, screed, or render according to the recommended ratios for optimal performance.

8. Why choose Everbuild 503 SBR Bond over other bonding agents?
   Its advanced SBR formula offers superior adhesion, flexibility, and waterproofing compared to traditional PVA-based products. This makes it ideal for demanding projects requiring long-lasting durability and moisture resistance. Whether you’re working indoors or outdoors, this product provides reliable performance and professional-grade results.

"Always read the Technical Datasheet prior to first use to ensure you have the correct information and  product for your application"