Condensation type one component liquid silicone rubber is made of hydroxyl-terminated polydimethylsiloxane (viscosity 3000-100000 mBA.s) as the base polymer (commonly known as base glue) and crosslinking agent, catalyst, filler and other characteristic additives in the moisture isolation mixer after mixing evenly, packed in a sealed cylinder or hose, pressure extrusion when used, Moisture in contact with air vulcanizes into elastomers, neither absorbing nor exothermic in the process. The curing time depends on the curing system temperature, humidity, silica layer thickness.

Condensation type one component liquid silicone rubber is widely used as adhesive, sealant and coating material because of its adhesion. As a single component liquid silicone rubber used as adhesive, the properties of the vulcanized substrate should be contacted with good adhesion, no corrosion, and have good physical and mechanical properties, electrical properties, so it is best to choose non-corrosive dealcoholization or deacetone one component silicone rubber. And when choosing one-component silicone sealant, main consideration completely after vulcanization modulus of size, to contact with the substrate adhesion, dynamic durability, surface weather resistance, corrosion of substrate, on the perimeter of the polluting factors, such as, modulus is characterization of sealant mobility parameters, with sealant stretch stress is measured, and sealant grades, The characteristics of typical varieties are described as follows:

(1) one component high modulus type: it is the most widely used variety, its curing system has deacetic acid type, deketone oxime type, dealcohol type;

(2) single component low modulus type: the adhesion is worse than the above varieties, the use must be in contact with the substrate surface for the bottom coating treatment;

(3) sealant for plastics: dealcoholization curing system, used for joint sealing of transparent plastic plates instead of inorganic glass filling;

(4) Mati fat type: this sealant is only cured on the surface, so it can be regarded as very ultra-low modulus type, used for plexiglass, plastic and other difficult to bond and brittle substrate joints;

(5) Structural sealant: used for the bonding of glass curtain wall of high-rise buildings, its bonding, durability, fatigue resistance, curing speed and so on have very high requirements, in order to adapt to the wind pressure resistance of components, earthquake resistance and to prevent the danger of glass damage or falling in extreme cases.