Designed primarily for use in high-temperature powder coating, E-coating and painting operations, StockCap’s tapered silicone plugs will resist temperatures up to 600°F (316°C).  The tapered design of these plugs allows one size to fit multiple ports while the soft rubber material conforms to provide a tight seal.

Key Features

High temp icon

Withstand temperatures up to 600°F (316°C).

Paint icon

The industry standard for powder coating applications.

Reusable icon

Can be re-used many times without degrading.

Chemical icon

Pose no risk of contamination to paint line.

Length icon

Custom sizes available with minimal tooling investment.

Shipping icon

In stock for immediate shipment.

35 Sizes

With diameters ranging from less than 0.05 inches to 5 inches and a tapered design that will protect virtually any size hole, StockCap is sure to have a silicone plug that will work in your application.

For the best fit, we recommend testing multiple sizes to see what works best in your application.

Color & Material Specs

Manufactured in orange silicone rubber. View our material chart for specifications or compare with other high temperature resistant materials.

Silicone tapered plugs diagram

Silicone Tapered Plugs

Major Diameter “A” (in)Minor Diameter “B” (in)Plug Length “C” (in)
0.1000.0311.000
0.1250.0310.625
0.1250.0620.625
0.1870.0620.625
0.1870.0620.750
0.2000.0620.750
0.2500.1250.750
0.2500.1251.000
0.3440.1870.625
0.3440.1871.000
0.3750.2500.750
0.3750.1251.250
0.4370.2501.000
0.4720.3540.748
0.5000.1252.000
0.5000.3130.812
0.5940.4061.000
0.6250.4380.813
0.6560.5001.000
0.7480.5631.000
0.7500.5631.000
0.8120.6251.000
0.9380.7191.000
1.0240.7871.000
1.0630.9051.000
1.2601.0241.000
1.3381.0631.000
1.6141.3131.000
1.7721.4691.000
1.9691.6251.000
2.2051.8751.000
2.4801.9691.000
2.5202.1251.000
2.9532.4381.375
3.5433.0001.500
4.0553.2501.500
5.0003.5002.000