With the development of aerospace, aircraft manufacturing and electronics industries, new high temperature resistant rubber and high temperature resistant adhesive are required. Silicone rubber has been widely used because of its good thermal stability, good cold resistance, good electrical properties and excellent weather resistance. Silicone rubber adhesive, the disadvantage is low cohesive strength, weak adhesion, but can be reinforced by adding filler to improve the adhesion strength and cohesive strength, is now as a non-structural adhesive has been widely used; Especially after the appearance of room temperature curing silicone rubber, silicone rubber adhesive has become an important product in the silicone industry.

"Room temperature vulcanized silicon adhesive is easy to use, simple process, and the bonding strength is better than high temperature curing type, mainly used for vulcanized silicon rubber and metal, metal and metal bonding. Room temperature vulcanized silicone rubber adhesive can be divided into two components and one component, two components that is, the main material and filler as a component, and curing agent, viscosity agent, catalyst as another component, when using the two can be mixed. The single component is to put the mixed groups into a closed container. When the rubber is exposed to the air and contact the water in the air, it will quickly solidify into elastic silicone rubber. One-component silicone rubber adhesives is much better than two components, especially acetic acid type one-component RTV can glue adhesive for most materials, if use silicone surface treating agent for proper handling, glued surfaces are almost in all the material has good bonding strength, but also can improve the water resistance and chemical resistance, convenient process.

Silicone rubber adhesive use

(1) In electrical and electronic applications

With insulation, waterproof, moisture-proof and sealing performance, as electrical and electronic components coating, encapsulation, perfusion, casting, molding is the ideal material.

(2) Applications in space travel and aircraft manufacturing

In the aircraft doors and Windows, space navigation observation window and other parts as bonding seal, satellite solar cells in the silicon photocell bonding and transparent cover glass bonding.

(3) Application in construction industry

Sealing doors and Windows, glass, tunnel, subway, underground building ceramic paste block cement, metal frame, etc., the application effect is good.

(4) In the civil field

Adhesive skis surface PTEE, refractory glass, etc.

One component RTV adhesive can also be used in automobile industry, shipbuilding industry, in recent years, it has been developed to bond blood vessels, heart, surgery and other aspects.

As one-component room temperature curing silicone adhesive application is becoming more and more widely, to improve its performance such as high strength, low modulus is very important, but through proper control of the crosslinking density of the polymer and polymer - the interaction of filler to obtain, it has high elongation, tearing resistance is good, for most materials without surface treatment, has the good adhesion, can be used as sealing material.