K-Rend HP12 Base Coat Render 25KG Bag

K-Rend HP12 Base Coat Render 25KG Bag

K-Rend HP12 Base Coat is a high-performance preparation coat designed to create the perfect foundation for K Rend top coat finishes. Suitable for both hand and machine application, this advanced formula uses High Polymer technology to deliver enhanced performance, particularly on challenging substrates such as dense blocks, unpainted render, and brickwork. When used alongside K Rend R7 Primer, it ensures superior adhesion and a long-lasting, professional finish. This versatile base coat is ideal as a stipple coat or for dense backgrounds, offering increased water resistance and improved bonding strength. It’s suitable for use with all K Rend top coat systems, including Scraped Texture, Thin Coat, Dash, Roughcast, and Brick Rend finishes — making it a trusted choice for contractors and builders seeking reliability and ease of application. At stress points such as window or door reveals, Alkali Resistant Reinforcing Mesh may be incorporated for added durability and crack prevention. With a coverage rate of approximately 8–11 kg per square metre at a 4–6 mm thickness, HP12 Base Coat ensures consistent, efficient results every time.

Key Specifications

• Enhanced Technology: High Polymer formulation for superior performance on difficult substrates.
• Application: Suitable for both hand and machine application.
• Finish Compatibility: Works with all K Rend finishes including Scraped Texture, Thin Coat, Dash, Roughcast, and Brick Rend.
• Thickness: 4–6mm nominal (up to 12mm on masonry substrates).
• Coverage: Approximately 8–11kg/m².
• Water Resistance: Category W2 under BS EN 998-1 classification.
• Compressive Strength: CS IV.
• Thermal Conductivity: ? = 0.61 W/mK (P=50%).

Frequently Asked Questions

Can K-Rend HP12 Base Coat be applied directly to brickwork?

Yes. It can be applied to unpainted brickwork or dense block surfaces, but for best results, it should be used in conjunction with K Rend R7 Primer to improve adhesion and performance.

Do I need to use reinforcing mesh with HP12 Base Coat?

While not always necessary, it’s strongly recommended to incorporate Alkali Resistant Reinforcing Mesh around stress points such as door and window reveals to prevent cracking and improve durability.

What K Rend finishes can be used over HP12 Base Coat?

HP12 is compatible with all K Rend top coats, including Scraped Texture, Thin Coat, Dash, Roughcast, and Brick Rend, providing a smooth and stable foundation for a flawless finish.

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