我发现玻璃胶已经干了，但我担心它还会释放甲醛。玻璃胶在固化过程中会排出刺激性气体，尽管它已经干透了，可能仍然有甲醛，因为这些化学物质并不会因为胶水变硬就停止释放。通常情况下，需要很长一段时间才能完全释放所有的甲醛。

关于玻璃胶的凝固时间，我了解中性类型大约需要2个小时来表面干燥，而酸性类型则是在30分钟内就能凝固。不过要达到完全干透，这两种类型分别需要48小时和24小时左右。

如果你想修补一个表面，你必须在玻璃胶表面干燥前完成操作（对于酸性和中性透明型通常是5-10分钟，对于中性杂色型是30分钟）。使用分色纸覆盖某些区域时，一定要在外皮形成之前移除。

glass glue's bonding process is as follows: 1. Use: Single-component silicone glass adhesive can be used immediately, and it is easy to dispense from the bottle using a caulk gun and smooth out with a putty knife or wooden scraper. 2. Drying Time: The curing process of silicone adhesives is from the surface to the inside, and the drying time and curing time of different types of silicones are not always consistent, so if you want to repair a surface, you must do so before the adhesive dries (acidic adhesives usually take 5-10 minutes for acidic transparent adhesives and 30 minutes for neutral colorless adhesives). If you use masking paper to cover one area, remove it before the outer layer forms.