Upgraded Tapered Silicone Plug Starter Kit

Caps fit over the outside of studs and pins, while tapered plugs insert into holes and bores. The tapered shape lets one plug fit a range of hole diameters by pushing it in deeper for a tighter seal. Use caps for external threads and plugs for internal holes, clearance areas, and through-holes.

The kit includes 21 different tapered plug sizes with 2 plugs per size for a total of 42 pieces. The tapered design means each plug covers a small range of hole diameters. This lets you test fit across your parts and identify which sizes to order in bulk for production masking runs.

These tapered plugs are rated to 600F (315C). They handle standard powder coating cure cycles of 350F to 450F without degrading, shrinking, or leaving residue. The silicone maintains flexibility through repeated heat cycles so the plugs insert and remove easily after each coating run.

Yes. The tapered shape compresses as you push the plug deeper into the hole, creating a seal even on slightly oversized or irregular openings. For best results, choose a plug size where the taper contacts the hole wall along at least half the plug length to prevent coating from seeping past.

The Upgraded Tapered Silicone Plug Starter Kit is priced at $85.00 and ships in stock from Creative Coating Solutions. It includes 42 total plugs across 21 sizes. This starter kit helps you identify the right sizes before committing to bulk orders for production volume masking.