Rubber Grommets & Seals

What is a rubber grommet used for in a masking context?

Grommets protect cable entry points and panel openings during coating or finishing — sealing the opening against process fluids while also protecting cable insulation from the sharp edge of the hole.

How do I choose between a standard and top-hat grommet?

Standard grommets suit uniform panel thickness; top-hat grommets have a flanged profile that seats against a range of panel thicknesses, useful when the same grommet needs to fit multiple part variants.