NuFlex® 302 General Purpose Silicone Sealant is a one-component acetoxy cure caulking material with medium modulus. It is designed to resist sagging, making it suitable for overhead or sidewall joints and surfaces. Upon exposure to air moisture, it cures into a sturdy, rubbery solid. This sealant adheres well to most non-porous construction substrates and offers excellent resistance to weathering, vibration, moisture, ozone, and extreme temperatures. It maintains its extrusion and physical properties even in sub-zero temperatures, remaining effective down to -46°C (-50°F).