... :1) 600ml 1:1, plastic caulking gun, caulking tool, dispensing gun Description: CG-600-1-1 Two-component ... duration is 5 times more than iron caulking gun. 2 High-efficiency: The force is up ... strength 5 times more than common iron caulking gun. 3 Brand image: Not only perfect services ... ยท Polysulfides, foams, Polymers, polyureas How to use caulking gun? Instructions:1, Open the swfit of handle and then ...