Butyl sealant, based on isobutylene polymer, is one of the four types of sealants with the largest consumption in the world. Has excellent weather resistance, heat resistance, acid and alkali resistance and excellent air tightness and electrical insulation properties. Widely used in various machinery, pipelines, glass installation, cable joints and other seals, buildings, hydraulic engineering and other aspects.

As we all know, butyl glue itself is a material that is physically synthesized. Hot melt glue that needs more than a hundred degrees of melting can melt without chemical reactions.

Butyl gum is one of the materials that are most afraid of oil. Gasoline, diesel, and everything that is oil can melt butyl gum. And some low-quality two-component contains a low-end mineral oil, also called white oil.

In order to reduce costs, some two-component manufacturers have caused the white oil to exceed the standard. Then, the insulating glass composed of the two-component white glass with butyl rubber can easily melt the butyl rubber and cause tears.

White oil is a white mineral oil, which is commonly used as a plasticizer. White oil has a low boiling point and is easy to volatilize. When a white oil-containing silicone sealant is used for the external sealing of insulating glass, over time The white oil will continue to volatilize inward and outward. When it contacts the first sealant butyl sealant of the insulating glass, it will dissolve. This will cause the insulating glass bumps, flow, failure of the insulating glass seal and in low-emissivity glass. The rainbow phenomenon appears, causing great damage to the insulating glass. The content of mineral oil is relatively large, causing butyl gum to flow in the cavity of the hollow glass, and form an oil band on the inner surface of the hollow glass. When white oil enters Low-E insulating glass, a rainbow phenomenon occurs when the film is not corroded.

The second type that indirectly causes tears in the insulating glass is a low-quality single-component acidic silicone adhesive. During the installation of the insulating glass, if the wrong acidic silicone adhesive is selected, the odor of these acidic silicone adhesives can be passed through the It is also compatible with butyl gum and causes tears. In addition, poor solvents in the wall paint may also cause tearing of the insulating glass.