Alkali-Resistant Silicone Water Repellent - Biokil Crown

£114.00

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Biokil Crown Alkali-Resistant Silicone Water Repellent is a clear, solvent-based treatment designed to protect masonry surfaces from penetrating damp. Its advanced formulation offers excellent resistance to alkalis, making it particularly effective on new brickwork and fresh pointing. The product penetrates deeply into substrates, providing long-lasting, breathable protection for up to 15 years. Suitable for various masonry surfaces, including concrete, renders, and sandstone.

Size

25 Litre

Strength

Single Double

Product variants

Delivery and Shipping

Place your order before 3pm for next working day delivery.

Please note: Additional delivery charges may apply for Northern Ireland, Isle of Wight, Isle of Man, Isles of Scilly, Scottish Highlands & Islands, and Channel Islands. We will contact you to inform you of any additional costs once your order is received, or you can call us on 0800 111 4898 beforehand to confirm.

Description

High-Performance, Solvent-Based Water Repellent for Masonry Surfaces

Biokil Crown Alkali-Resistant Silicone Water Repellent is a clear, solvent-based treatment designed to protect masonry surfaces from penetrating damp. Its advanced formulation offers excellent resistance to alkalis, making it particularly effective on new brickwork and fresh pointing, where other repellents may fail. The product penetrates deeply into substrates, providing long-lasting protection while allowing the surface to breathe.

Key Features & Benefits

Alkali Resistance: Ideal for new masonry and fresh pointing, resisting degradation in alkaline conditions.
Deep Penetration: Ensures effective water repellency by penetrating deeply into the substrate.
Breathable Protection: Allows moisture vapor to escape, preventing trapped dampness.
Long-Lasting: Provides up to 15 years of protection with a two-coat application.
Versatile Application: Suitable for use on concrete, roughcasts, renders, sandstone, synthetic stone, and new brickwork.

Product Details

Appearance: Clear liquid.
Base: Silicone resin in white spirit.
Coverage: Approximately 3–5 m² per litre per coat, depending on substrate porosity.
Packaging: Available in 5L and 25L containers.
Storage: Store in a cool, dry place away from direct sunlight and sources of ignition.

Application Instructions

Surface Preparation: Ensure surfaces are clean, dry, and free from contaminants. Remove any loose material, dirt, or biological growth.
Application: Apply using a brush, roller, or low-pressure spray. For best results, apply two coats, allowing the first coat to dry before applying the second.
Drying Time: Surface dry in approximately 1 hour; fully cured after 24 hours.
Clean-Up: Clean tools and equipment with white spirit immediately after use.

Limitations

Not suitable for use on painted or sealed surfaces.
Do not apply if rain is expected within 24 hours or if temperatures are below 5°C.
Ensure adequate ventilation during application and drying.

Health & Safety

Flammable. Keep away from sources of ignition. Use protective gloves and eye protection during application. Avoid inhalation of vapors. Refer to the Safety Data Sheet (SDS) for detailed information on handling, storage, and disposal.