Transtar 6144 2K Epoxy Activator (1 Quart) is designed for use with 2K Epoxy Primer Sealer/Groundcoat. 2K Epoxy is an excellent lead and chromate free corrosion-resistant coating that provides strong adhesion on a variety of properly prepared surfaces. 2K Epoxy Primer/Sealer improves adhesion of body fillers while resisting moisture damage that is caused by water permeation. May be used as a precoat or sealer/groundcoat prior to topcoating. TDS 208. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.