Silicone sealant is mainly composed of silicone base polymer, filler and auxiliary agent. Among these three raw materials, silicone base polymer has high price and the highest content in reasonable silicone sealant formula. Its cost often accounts for more than 75% of the cost of the entire silicone collagen material. Considering the performance, the silicone base polymer content of high quality silicone sealant products can reach 50% or even higher; but some manufacturers only consider the cost regardless of performance, in order to reduce the cost of sealant, the usual practice It is to increase the amount of low-cost fillers, fill mineral oil, and thus greatly reduce the content of silicone base polymer. The silicone base polymer content of some circulating silicone sealant products in the market is even less than 20%.

The composition of the silicone sealant determines its cost, and some manufacturers have achieved the goal of reducing the cost by reducing the content of the silicone base polymer. On the surface, these low-cost “oil-filled rubber” are not much different from non-oil-filled silicone sealants. Some products even have a good appearance, very bright, fast curing speed, and good initial mechanical properties. However, as the use time prolonged, the difference between "oil-filled rubber" and non-oil-filled silicone sealant gradually appeared.

At present, there are a large number of inferior oil-filled silicone rubber products on the market. They usually attract users at low prices. They can't see problems when they first start to use, but after a few months and a half, the problems of these products will gradually be exposed. There are a series of problems such as cracking, chalking, hardening, and oil flow, which directly bring serious quality problems and even safety hazards to users. These problems may cause several times or even dozens of times the economic loss of buying silicone rubber itself! Are you going to use low-cost "silicone rubber" at the expense of product quality and performance?