Long-Lasting Water Repellent for Brick, Stone & Masonry. Sovereign Weather-Chek Façade Cream is a high-performance, one-coat treatment formulated to protect porous masonry surfaces from water ingress, damp penetration, and freeze-thaw damage. Its silane/siloxane-based cream formula penetrates deeply and cures to form a breathable, clear barrier — all without altering the appearance of the surface.. Ideal for brick, stone, concrete, render and mortar joints, Weather-Chek improves thermal efficiency, reduces heat loss, and guards against the damaging effects of moisture — including algae, mould, and salt bloom.. Key Benefits. One-coat paste formula – no drips or overspray, reduces labour and mess. Covers 20–40 m² per 5 L – efficient coverage depending on porosity. Improves thermal performance – reduces heat loss through masonry. Protects against:. Penetrating damp. Freeze/thaw damage. Mould, algae and fungal growth. Salt bloom and dirt build-up. Dries clear – preserves the natural look of walls. UV-stable, breathable and long-lasting – effective for up to 25 years. Easy to apply with brush, roller or low-pressure spray. Product Details. Pack Sizes: 5L & 25L. Coverage: Approx. 4–8 m² per litre (20–40 m² per 5L). Application: External use on clean, dry surfaces. Substrates: Suitable for porous brick, stone, render, concrete, and mortar. Finish: Dries clear; does not alter surface appearance. Safety & Application Notes. Apply in dry conditions with no rain forecast for 24 hours. Not suitable for sealed, painted, or non-porous surfaces. Wear appropriate PPE — gloves and eye protection recommended. Consult the Safety Data Sheet (SDS) before use. Ideal For:. External brick or stone walls. Heritage or listed properties. Weatherproofing during renovations or maintenance. Preventative damp control in exposed or coastal locations
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