heat cureable solder resist ink is used on single ,double and multilayer circuit boar Thermal Curable Solder resist ink PR2201 Series are the thermal curable solder resist ink which be used on single ,double and multilayer circuit board. The main components of which are epoxy resin, solvent, filler and pigment. Charcater:1. Two-pack type ink, have a long shelf life before adding the hardener2. ...