Flexseal NS313 Neutral Cure Silicone Sealant

Flexseal NS313 is a high-performance, one-part, neutral-cure (oxime) silicone sealant designed for professional sealing and bonding applications. Upon exposure to atmospheric moisture, it cures to form a flexible, durable silicone rubber that maintains its integrity over time. This neutral cure formulation is non-corrosive, making it safe for use on sensitive substrates such as metals, glass, and painted surfaces without causing discoloration or damage.

Key Features

• Neutral Cure Technology: Oxime cure mechanism ensures no acidic by-products, preventing corrosion and odor issues.
• Superior Adhesion: Bonds effectively to glass, ceramics, aluminum, galvanized steel, and most plastics without the need for a primer in many cases.
• High Elasticity: Maintains flexibility after curing, accommodating thermal expansion and contraction as well as structural movement.
• Weather Resistance: Excellent resistance to UV radiation, ozone, and extreme temperatures, ensuring long-lasting outdoor performance.

Applications

This sealant is ideal for architectural glazing, window and door installation, expansion joints, and general construction sealing. It is particularly suited for bonding materials where acid cure sealants would be unsuitable, such as mirror backs, copper, and zinc.