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What Is the #122-A Gel Coat Thickness Gauge?
The #122-A Gel Coat Thickness Gauge is a wet film comb for measuring gel coat thickness during application.
Gel Coat Thickness Gauge reads in both mil scale (1 to 80 mils) and microns (25 to 2032 microns), making it the simplest accurate way to confirm you are laying down the right amount