Coatstop Offers Reusable Silicone Masking Plugs and Caps for Powder Coating, E-Coating, Plating and Anodizing


Posted November 3, 2026 by coatstop

Foshan Coatstop Co., Ltd., a silicone masking parts maker based in Shunde, Foshan, China, supplies about 650 sizes of silicone plugs and caps that keep coating out of holes, threads and studs during surface finishing.

 
FOSHAN, China - Coatstop, the masking parts brand of Foshan Coatstop Co., Ltd., makes and sells silicone masking plugs and caps to finishing shops, paint lines and manufacturers that powder coat, e-coat, plate or anodize metal parts. The company focuses on one job: keeping coating out of holes, threads and studs.

The Coatstop range covers six families of silicone masking parts, sized in inches and millimeters: silicone tapered plugs for blind holes, silicone pull plugs for through-holes, flanged masking plugs for a hole plus the face around it, flanged pull plugs for weld nuts and chamfered through-holes, silicone thread plugs for small metric tapped holes (M0.8 to M10), and silicone caps and sleeves for studs, bolts, pins and tube ends.

The catalog lists about 650 sizes for holes from 0.8mm to about 150mm, plus caps and sleeves for studs and tubes from 0.5mm to 73mm inside diameter. Silicone masking parts are commonly rated about 450°F to 600°F (232-316°C), depending on the compound, and can be reused across many oven cycles.

When a standard plug does not seal a feature, Coatstop molds custom silicone masking parts to the customer's drawing or sample. Because masking plugs are consumables, buying direct from the molder lets finishing shops order exact sizes in bulk rather than assortment kits.

Founded in 2003, Foshan Coatstop Co., Ltd. has about 200 employees and is based in Shunde District, Foshan, Guangdong.

About Coatstop
Coatstop is the masking parts brand of Foshan Coatstop Co., Ltd., No. 846, Wenxiu Community, Daliang Subdistrict, Shunde District, Foshan, Guangdong 528300, China. Website: https://coatstop.com

Media contact
Darren Coatstop, Sales Manager
Foshan Coatstop Co., Ltd.
Email: [email protected]
Phone: +86 757 8527 6822
Website: https://coatstop.com
 
Contact Email [email protected]
Issued By Foshan Coatstop Co., Ltd.
Phone +86 757 8527 6822
Business Address No. 846, Wenxiu Community, Daliang Subdistrict
Shunde District, Foshan, Guangdong 528300
Country China
Categories Industry , Manufacturing
Tags silicone masking plugs , powder coating , ecoating , anodizing masking , silicone caps
Last Updated November 3, 2026