This is our 2-part, spray-on Epoxy Primer Resin. It is to be used on porcelain, cast iron, steel, or ceramic surfaces. This is a low-build primer system designed to hold tightly to the surface while retaining the flexibility that resists cracking. This fast-dry tub epoxy primer is applied in 3 - 4 light tack coats without the worry of unevenness or runs. It takes just 5 - 10 minutes to dry. It even covers up minor pits or imperfections.
**MUST BE MIXED 50/50 WITH EPOXY PRIMER CATALYST! ALLOW INDUCTION TIME OF AT LEAST 15 MINUTES AFTER MIXING*
This Epoxy Primer requires the bathtub to be prepared to accept the primer by etching with either NAPCO's Piranha Prep or NAPCO's Extra-Strong ETCH. The primer must be applied to a dry surface with all the loose etch material to be removed by like sanding.
Spray 3 light tack coats so that the tub surface is uniformly coated, but one can see through the coating. After the last coat gets to the tack state, the PolyGlass Topcoat can be applied. The Epoxy Primer Dry film thickness target is 0.8 to 1 mil, while the dry film of the PolyGlass topcoat is in the 2.5 to 3.5 mil range. This tub epoxy primer does not require any induction time meaning you don't need to wait after mixing the resin and catalyst.
**Available in white, gray or custom colors from Black to Pink!
Notes and Precautions:
Refer to the MSDS sheet before use. The NAPCO Epoxy Resin Base should be shaken constantly for 20-40 seconds before use. For a 35-square foot tub, mix 4-oz of NAPCO Epoxy Resin Base with the NAPCO Epoxy Primer Catalyst. This will yield a film thickness of about 1 mil, when dry. All components should be stored indoors between 50-90 F. Shelf-life in UNOPENED containers is one year from the date of manufacture. Make sure the bottle caps are on the bottles when not in use. The viscosity of the resin will more than double at 50F vs. 75F and this will make it more difficult to thoroughly mix. The recoat tack times will lengthen at low temperatures and the cure will be slower. If the components are stored at high temperatures, 90F and above, the viscosity of the base will noticeably be lowered, and the solvents in the mixed paint will evaporate more rapidly, causing the film to dry too fast.