Why do blemishes appear when using silicone sealant to glue mirrors?

Many people use ordinary silicone sealant to attach mirrors, but soon after, blemishes, watermarks, corrosion of the mirror coating, and detachment of the mirror surface occur on the back of the mirror. This affects the appearance and lifespan of the mirror. The main reason for these problems lies in acidic silicone sealant: During the curing process of acidic sealant, acetic acid substances are released. When these acidic gases come into contact with the silver coating and the back coating of the mirror, they will undergo a chemical reaction, gradually corroding the coating, and eventually forming unsightly spots and black dots. At the same time, the inferior sealant has impure components and impurities will also exacerbate the damage to the mirror surface.

To avoid such problems, when attaching mirrors, it is essential to use special neutral silicone sealant. The Double Source series sealant is specially optimized for mirror attachment scenarios. It uses a pure neutral formula and does not release acidic substances during curing, thus not corroding the silver coating and back coating of the mirror. This fundamentally eliminates the occurrence of blemishes and corrosion.
The product has high bonding strength, flexible gel, is suitable for various mirror substrates such as glass mirrors and decorative mirrors, and the sealing and bonding are stable, resistant to moisture and aging. The construction is simple, and it can be used in scenarios such as indoor bathrooms, decorative mirror frames, and wall-mounted mirrors. After bonding, the mirror surface remains intact and shiny for a long time, making it the professional choice for attaching mirrors.