Alstone WS 789 Weather Silicone Sealant is a premium, one-part, neutral-cure silicone sealant specially formulated for weatherproofing and sealing joints in building exteriors. It offers excellent adhesion to a wide variety of construction materials including glass, aluminum, concrete, and coated surfaces, making it ideal for facade and glazing applications.
Key Features:
UV and weather resistant – long-lasting protection in all climates
Neutral cure – non-corrosive and low odor
Flexible & durable – accommodates joint movement and thermal expansion
Excellent adhesion – bonds well to porous and non-porous surfaces
Easy to apply – smooth finish and fast curing
Applications:
Perimeter sealing of windows and doors
Expansion and control joints in concrete and masonry
Curtain walls and building facades
General exterior weather sealing
Packaging: Available in 280ml cartridges and 600ml sausages
Color Options: Commonly available in Black, White,Clear,Grey, Ivory, Brown, Dark Brown.

Note: Not suitable for structural glazing or below-waterline applications.