The bonding strength of insulating glass sealant to aluminum and glass surface is different in different curing time, and the bonding strength is affected by local environmental temperature, relative humidity and design of plastic head. Big. Generally, the curing of the insulating glass sealant in its curing process is divided into three time periods:
1 initial curing. Under certain temperature conditions, after a certain period of time reaches a certain strength, the surface of the rubber has solidified and is not sticky, but the curing closing ceremony is not finished. At this time, the cohesive strength and adhesion properties of the glue are very low.
2 basic curing. After a period of time, most of the participants participate in the reaction and reach a certain degree of cross-linking. This process generally takes one week.
3 post cure. Generally, it can be replenished for a period of time at a certain temperature, further improving the degree of curing and effectively eliminating internal stress, thereby improving the bonding strength, which generally takes two weeks.
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