The key to doors and windows is sealing. And the sealing effect, the rubber strip plays a vital role. The raw materials of sealant strips are generally PVC modified, and the plasticizers that participate in it are the most important ones. The relatively stable plasticizers now include phosphorus dioctyl ester and dibutyl ester, but the market price is higher. Therefore, some small manufacturers have replaced some cheap things, which laid a great danger to future users.

 These dangers are manifested in: 1. The sealing of doors and windows is low. Poor quality sealant strips contain residual plasticizers or substitutes, which tend to age and harden in winter and shorten. There is a gap between the glass and the profile, forming water leakage and dust. Many users often find that the red liquid flows out of the bead portion of the plastic window in the dry season, which is formed by the corrosion of the steel lining after the water enters between the window glass and the sealing strip. Not only does it greatly reduce the beauty of doors and windows, but also greatly affects the life of doors and windows. 2. The surface of the rubber strip shows oil leakage. The waste engine oil and PVC are not compatible with the sealing strip at all. The surface is very simple and presents grease, and yellow marks appear on the surface of the profile. It is not environmentally friendly, has an odor, and pollutes the air.

In the manufacturing process of doors and windows, the investment of sealant strips accounts for a small proportion, but its effect is not underestimated. In order to save small amounts of money, the production units are not carefully selected, and the real losses are caused by small ones.

Hebei Fengming has created increasingly high value for customers with a humble and rigorous corporate culture.