Glass glue is a material for bonding and sealing various glasses with other substrates. There are two main categories: silicone rubber and polyurethane rubber (PU). Silicone glue is divided into acid glue and neutral glue, structural glue and so on. Polyurethane glue is divided into bonding glue and sealant.

Sealant is distinguished from the performance. The single-finger function is to seal. Weather resistant adhesive, silicone structural adhesive and polyurethane adhesive all have sealing effect, but have other very important functions, such as high bonding strength and good weather resistance.

The structural rubber finger has high strength (compressive strength>65MPa, steel-steel positive tensile bonding strength>30MPa, shear strength>18MPa), can withstand larger loads, and is resistant to aging, fatigue, and corrosion, and has performance within the expected life. Stable, suitable for adhesives for bonding strong structural parts.

It can be seen that glass glue and sealant are divided from use and performance, which are both cross and different; structural glue is a kind of glass glue.