Principle of two-component polyurethane sealant

Basic treatment: the gluing surface must be treated neatly (hand-held cutter, grinding wheel, rigid brush, etc.). ) to expose the solid structural layer on the glued surface.

The joint surface must be completely dry, clean and frost-free. All dust and cement slurry on the surface must be removed. Rust layer and protective paint on metal surface should also be removed. If the structure is not dry, it can be dried with a blowtorch.

Porous surfaces need to be primed before bonding. Only a thin layer of primer needs to be brushed, and sealant can be applied to fill the joint after the surface is not sticky. Our company has all kinds of primers.