Chemask lead-free solder masking agent is a temporary, fast curing, peelable solder masking agent formulated for use in high temperature lead-free applications. Use to protect pins, posts, contacts and edge connections during conformal coating processes. - It is a temperature resistant coating that protects component-free areas of the PCB during wave soldering. Chemask lead-free can be introduced into the preheat oven within 4 min of application without adverse effects.