DOWSIL 789 Weatherproof Silicone Sealant 600ml

Dowsil 789 Weatherproof Silicone Sealant

Dowsil 789 Weatherproof Silicone Sealant is a high-performance, neutral-curing silicone sealant designed for exterior sealing and weather-exposed construction applications. It is a one-component sealant that cures at room temperature under atmospheric moisture, forming a permanently flexible silicone rubber capable of withstanding harsh outdoor conditions.

This sealant is supplied in a 500 ml cartridge and is available in black, white, grey, and clear colours, making it suitable for architectural façades and exterior joints where appearance and durability are important. Dowsil 789 offers excellent adhesion to glass, aluminium, coated metals, and ceramic substrates, ensuring reliable sealing in residential, commercial, and industrial projects. Its non-sag formulation allows clean application on vertical and horizontal joints without slumping.

Dowsil 789 is engineered to provide long-term weather resistance, including protection against UV radiation, rain, humidity, and temperature variations. After curing, the sealant maintains elasticity and resists ageing, cracking, and shrinkage, making it ideal for exterior joints exposed to continuous environmental stress.

Applications / Uses

Dowsil 789 Weatherproof Silicone Sealant is suitable for:

• Exterior glazing and façade sealing

• Window and door perimeter joints

• Weather-exposed construction joints

• Expansion and movement joints

• Aluminium and glass assemblies

Manufactured in India and available in ready stock, Dowsil 789 Weatherproof Silicone Sealant is trusted by contractors, fabricators, and façade professionals for its durability, weather resistance, and consistent performance. When sourced from Poly Prime Industry, customers receive genuine Dowsil material along with reliable availability and professional support for bulk and project requirements in Delhi.

Frequently Asked Questions

Q1. Is Dowsil 789 suitable for outdoor use?
Yes. Dowsil 789 is specifically designed for exterior and weather-exposed applications.

Q2. What makes Dowsil 789 different from general-purpose silicone?
It offers superior weather and UV resistance, making it ideal for outdoor sealing applications.

Q3. Can it be used for façade and glazing work?
Yes. It is commonly used for façade glazing, window sealing, and exterior construction joints.

Q4. Is Dowsil 789 available in Delhi?
Yes. Poly Prime Industry currently has Dowsil 789 Weatherproof Silicone Sealant available in stock in Delhi.