DOWSIL™ 789 Silicone Weather Proofing Sealant, 280ml

Product Highlights

Quick Answer: What is DOWSIL™ 789 Silicone Sealant used for?

DOWSIL™ 789 Silicone Weather Proofing Sealant is a high-performance neutral cure silicone sealant, designed for weatherproofing, sealing joints, and gap filling in construction with excellent adhesion and weather resistance, 280ml cartridge.

• Type: Neutral Cure Silicone Weatherproofing Sealant
• Size: 280ml cartridge
• Properties: Excellent adhesion, weather resistance
• Application: Weatherproofing, joint sealing, gap filling
• Cure Type: Neutral cure

Product Description

DOWSIL™ 789 Silicone Weather Proofing Sealant is a high-performance neutral cure silicone sealant manufactured by Dow, engineered for weatherproofing, sealing joints, and gap filling in construction applications. The neutral cure formulation provides excellent adhesion to various substrates without corrosion.

With superior weather resistance and durability, DOWSIL™ 789 is ideal for exterior and interior sealing applications. The 280ml cartridge size is convenient for residential and commercial projects in Bangalore requiring professional-grade weatherproofing and sealing solutions.

Technical Specifications (Quick Reference)

Recommended Applications

• Window & Door Sealing: Weatherproof sealing around windows and door frames
• Exterior Joints: Seal expansion joints and gaps in exterior walls
• Bathroom & Kitchen: Water-resistant sealing for sinks, bathtubs, and countertops
• Glass & Metal: Excellent adhesion to glass, aluminum, and metal surfaces
• Weatherproofing: Protect buildings from water infiltration and weather damage
• Construction Sealing: Professional-grade sealant for construction and renovation projects

Usage Guidelines

1. Surface Preparation: Clean and dry surfaces; remove old sealant, dirt, and grease
2. Cartridge Loading: Load 280ml cartridge into standard caulking gun
3. Application: Apply sealant in continuous bead along joint or gap
4. Tooling: Smooth sealant with wet finger or tool within 5-10 minutes
5. Curing: Allow 24 hours for full cure before exposing to water or stress

FAQs

1) What is neutral cure silicone sealant?

Neutral cure silicone releases non-corrosive byproducts during curing, making it safe for use on metals, mirrors, and sensitive materials without causing corrosion or damage, unlike acetoxy cure sealants that release acetic acid.

2) Can I use DOWSIL™ 789 for bathroom sealing?

Yes, DOWSIL™ 789 is excellent for bathroom sealing. The water-resistant and mold-resistant properties make it ideal for sealing sinks, bathtubs, showers, and countertops in wet environments.

3) Is DOWSIL™ 789 suitable for exterior use?

Yes, DOWSIL™ 789 is specifically designed for weatherproofing. The excellent weather resistance and UV stability make it ideal for exterior sealing, window frames, and expansion joints exposed to weather.

4) What surfaces does DOWSIL™ 789 adhere to?

DOWSIL™ 789 adheres to glass, aluminum, metal, ceramic, wood, and most building materials. The neutral cure formulation provides excellent adhesion without primers on most common construction substrates.

5) How long does it take to cure?

DOWSIL™ 789 skins over in 10-20 minutes and fully cures in 24 hours at room temperature. Cure time may vary based on temperature, humidity, and joint depth. Thicker applications take longer to cure.

6) Can I paint over DOWSIL™ 789?

Silicone sealants generally cannot be painted. If paintability is required, consider using paintable acrylic or hybrid sealants instead. DOWSIL™ 789 is best for applications where clear or color-matched sealing is acceptable.

7) How do I remove old silicone sealant?

Cut away old sealant with utility knife, then scrape remaining residue with scraper or razor blade. Clean surface with silicone remover or mineral spirits before applying new sealant for proper adhesion.

• Authentic DOWSIL™ Products: Verified genuine Dow products from authorized distributors
• Fresh Stock Guarantee: All sealant within optimal shelf life for maximum performance
• Bangalore Fulfilment: Quick local availability with express delivery across Bangalore

Returns & Exchange Policy

1. This product is non-returnable.
2. Replacement available within 24 hours of delivery for:
   • Damaged or defective product
   • Wrong or missing item
3. Product cannot be returned once opened or used
4. Refer to Refund Policy for complete details