Dump Hot water at 110 deg F(45 deg C) in your Cal tube and thats it !.

Gadres_4000 5 gallon ( 44 lbs )

Yet this resin gives you up to a very generous c 120 minute working time. More working time than most epoxies and silicates. What is the trick ??? The resin is very stable at temperatures under 48 deg F (10 deg C). Once temperature rise above 35 deg C (90 deg F)...Bang you get a near instant reaction. No need for recirculating water and all that aggravation. Just fill liner up with water at 110 deg F. By the time you filled the line up you are done !!!