... excellent in quality and competitive in price. 2.well-sealing. 3. OEM How to use caulking gun?Instructions:1, Open the swfit ... , Remove the cartridge, then to repeat the above operation.Suggested Use Materials:· Epoxies, Acrylics, Silicones, Polyesters.· Epoxy Acrylates, Hybrids, Urethanes.· Polysulfides ... 10:1 Side by Side Caulking Cartridge (fill epoxy adhesive),2-component cartridge,dual cartridge