... . 2 High-efficiency: The force is up to 270kg-300kg and save your strength 5 times more than common iron ... , Polyesters. · Epoxy Acrylates, Hybrids, Urethanes. · Polysulfides, foams, Polymers, polyureas How to use caulking gun? Instructions:1, Open the swfit of handle ... two-companent impression material cartridge.3, Promote the trigger to make the impression material come out smoothly from the ...