Compared with other types of sealants, the biggest feature of silicone sealants is that they have excellent resistance to UV aging and weathering, making them the first choice for home decoration and building curtain wall doors and windows. The quality and price of silicone sealants on the market are mixed and mixed. In the building materials market, silicone rubber products are everywhere, and the brand is ever-changing. Sometimes I get dazzled. How can I buy a suitable silicone rubber product. Not urgent! I will show you how to find the right silicone glue for you.

1.Gloss
The gloss of different quality silicone sealants will be different after curing. The high-quality glue will have a strong gloss after curing, and some of the inferior glue will have no gloss after being beaten out. The higher the surface gloss, the finer and smoother the glue, the better the quality; the worse is the inferior glue.

2. Look at the particles
High-quality silicone rubber is a chemically synthesized material that is fully and evenly stirred. The texture is fine and uniform, and it is smooth, smooth, and shiny after curing. Inferior silicone rubber has some visible particles and debris.

3. See if you add mineral oil
The main component of high-quality silicone sealants is silicone, and the amount of other added materials is very small. Pure silicone has good stability. It is minimally affected by changes in external conditions during storage. However, inferior silicone sealants are not 100% silicone glue, and additives such as mineral oil in silica gel and plastic bottles. The PE soft rubber may cause chemical reactions, making the plastic bottle swell and increase, the remaining air infiltrates the glue to create a gap, and the sound of "pop, pop" bubbles will be emitted when glue is applied, shortening the shelf life.

4, test adhesion
Put the silicone glue on the substrate. After curing, tear the silicone glue on the substrate by hand. If it can be easily torn off, it means that the adhesion is not good enough; otherwise, it is good.