Why Dowsil 781 Sealant is Trusted by Professionals

2 min reading time

If you’re looking for a reliable sealant for glass and metal joints, Dowsil 781 Neutral Cure Silicone Sealant is one of the best options out there. It’s known for its strong adhesion, long-lasting performance, and clean finish — perfect for both residential and commercial use.

What is Dowsil 781 Sealant?

Dowsil 781 is a high-performance neutral cure silicone sealant specially designed for glazing, curtain walling, and aluminum structures. Unlike some other sealants, it doesn’t release strong odors or cause corrosion, making it ideal for sensitive materials.

Where Can You Use It?

Glass-to-glass and glass-to-aluminum joints
Curtain walls and window frames
Showrooms, offices, and buildings with glass facades
Bathrooms and kitchens
General interior or exterior sealing

Benefits of Using Dowsil 781

✅ Excellent adhesion to glass, metal, and plastic surfaces
✅ Weather-resistant – stands up to UV rays, rain, and temperature changes
✅ Neutral cure – safe on sensitive materials, no acid smell
✅ Flexible and long-lasting – won’t crack or peel over time
✅ Professional finish – smooth, clean, and easy to apply

How to Apply Dowsil 781 Sealant

Clean the surface – Remove dust, grease, or old sealant for better adhesion.
Cut the nozzle – Trim at a 45° angle to your preferred bead size.
Apply the sealant – Use a caulking gun and apply a steady bead along the joint.
Tool the surface – Smooth it with a spatula or gloved finger for a neat look.
Cure time – Let it set and fully cure (typically 24 hours) before exposing to moisture.

Final Thoughts

Dowsil 781 Sealant delivers top-tier performance for glazing and construction applications. It’s clean, professional, and built to last — making it a go-to choice for contractors and DIY users who want quality and reliability in every seal.