Fast cast resin 1kg kit produce casts in double quick time this is a polyurethane resin for casting and tooling it has a 3 4 minute pot life and takes about 30 minutes to cure it also has an unbelievably low viscosity so will find its way into intricate moulds supplied as a 2 part kit containing resin and a catalyst its easy to use just mix the resin and the catalyst 11 by weight stir well for approximately one minute and pour immediately provides excellent detail and works brilliant