3M 7000120479 Marine Grade Silicone Sealant White 3 oz Tube

3M Marine Grade Silicone Sealant is formulated specifically for above-the-waterline sealing on RVs, boats, and personal watercraft. Ideal for hatches, dashboard components, deck hardware, portlights, and many other uses inside or out, it features a non-shrinking formula that forms a strong elastomeric bond and stays firm, tough yet flexible even in tough environments.

Key Features:

• Mildew resistant, non-yellowing, non-sagging formula
• Adheres to paint, fiberglass, bare metal, glass, non-oily wood, many plastics, and abraded rubber
• Resists all types of weather including high temperatures and fights the growth of mildew
• Won't sag, making it easy to apply even on vertical surfaces
• Requires no mixing and applies right from the container
• Becomes tack-free in as little as 20 minutes and fully cures in 24 to 48 hours

This one-component cure silicone sealant is engineered to withstand the harsh marine environment, providing a durable, long-lasting seal that maintains its flexibility even after years of exposure. The white color preserves a sharp, professional appearance without yellowing over time. Each tube contains 3 oz of sealant and is sold in cases of 6 tubes.