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How long does it take for silicone sealant to dry?

    1. Adhesion time: The curing process of silicone glue develops from the surface inward, and the surface drying time and curing time of silicone rubber with different characteristics are different.

To repair the surface, it must be done before the silicone sealant is dry (acid glue, neutral transparent glue should generally be within 5-10 minutes, neutral variegated glue should generally be within 30 minutes). If a color separation paper is used to cover a certain area, after applying the glue, be sure to remove it before the skin is formed.

 

    2. Curing time: The curing time of the silicone sealant increases with the increase of the bonding thickness. For example, the acid sealant with a thickness of 12mm may take 3-4 days to solidify, but within about 24 hours, there are 3mm The outer layer is cured.

20 psi peel strength after 72 hours at room temperature when bonding glass, metal or most woods. If the silicone sealant is partially or completely sealed, then the curing time is determined by the tightness of the seal. In an absolutely airtight place, may not solidify.

Increasing the temperature will soften the silicone sealant. The gap between metal-to-metal bonding surfaces should not exceed 25mm. In various bonding occasions, including airtight conditions, the bonding effect should be fully checked before the bonded equipment is used.

 


Post time: Mar-25-2022