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