Butyl sealant determines the appearance and service life of insulating glass. The application of butyl sealant is the first step and the key link of making insulating glass. It determines the overall quality performance of insulating glass products (whether it meets the requirements of insulating glass countries). Standard five indicators). The non-drying sealant composed of butyl rubber and a small amount of polyisobutylene will not dry out in the manufacture of insulating glass. It can be applied mechanically and is suitable for assembly in assembly lines. After coating, the adhesive layer does not dry to maintain permanent stickiness. At the same time, it has excellent heat and water resistance, does not flow under the sun and rain, and maintains the airtightness of the hollow glass. Together with the second sealant, it forms an excellent anti-humidity system.
In order to ensure the appearance and quality of insulating glass, there are the following technical requirements for the butyl sealant used:
1. Must choose the appropriate guaranteed butyl sealant products;
2. Good initial adhesion and adhesion to glass;
3. Has good sealing performance;
4. The coating must be uniform and the coating cross section should be consistent.
In short, when using butyl tape for waterproof sealing, we should strictly carry out the waterproof sealing construction of butyl tape in accordance with the instructions to ensure that the performance of butyl tape is good.