Low Modulus Non-Corrosive RTV Silicone

ASI 405 Industrial Silicone Sealant/Adhesive is a one-part, moisture curing, RTV (room temperature vulcanizing) 100% silicone sealant. adhesive that cures to a strong, silicone rubber that maintains long- term durability and flexibility. ASI 405 is a non-slump sealant and can be applied on vertical or overhead surfaces without flowing or sagging.

Because ASI 405 is a 100% silicone sealant, it has excellent resistance to weathering including ozone, ultraviolet radiation freeze-thaw conditions and airborne chemicals.

Fully cured, ASI 405 RTV non slump silicone has excellent adhesion to glass, metal, porcelain, ceramic, wood, most plastics and many other nonporous substrates.

ASI 405 low modulus non-corrosive RTV silicone can be applied to surface temperatures from -18°C to +50°C (0°F to ÷120°F) and, after curing, withstands constant operating temperatures from -57 C to +204 C (-70 F to +400°F).

TYPICAL USES

ASI 405 is an excellent sealant and or adhesive for many industrial applications where a long term, permanently flexible bond or seal is required. Such applications include:

• formed-in-place gaskets for axle housings, differentials, junction box covers, etc.

• adhering appliance trim and sealing appliance parts

• adhering name plates, letters and signs

• sealing joints in ductwork

• sealing truck trailers, cabs, marine portholes and cabins

DIRECTIONS

ASI 405 is ready to use and requires no mixing or additives. The cure mechanism begins as soon as the sealant comes in contact with the air.  At conditions of 25°C (77°F) and 50% relative humidity, the sealant will skin in 20 minutes and fully cure in 24 hours (1!4 bead) and reaches its maximum adhesion in 7 days. Higher humidity accelerates cure. Tooling, if necessary, should be done before skinning takes place.  In applications where partial or total confinement of sealant is prevalent, the time required for proper cure is generally lengthened by the degree of confinement.

* Noncorrosive to aluminum and
steel per  MIL- 46106 Type I