Plugs & InsertsEPDM Tapered Plugs / Stoppers

EPDM plugs are ideal for most plating and anodizing applications due to their excellent resistance to chemicals. The tapered design of these plugs allows one size to fit multiple ports while the flexible rubber material conforms to provide a tight seal.

Key Features

Chemical Resistance

Superior chemical resistance.

Extra High Temperature

Withstand temperatures up to 475°F (246°C).

Low Cost

Low cost alternative to silicone plugs in some coating processes.

No Contamination to the Paint Line

No risk of contamination to
paint line.

Custom Sizes

Custom sizes available with minimal tooling investment.

In Stock

In stock for immediate shipment.

With diameters ranging from less than 0.05 inches to over 1.25 inches and a tapered design that will protect virtually any size hole, StockCap is sure to have a EPDM rubber plug that will work in your application.

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

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

Purchase Online

EPDM Tapered Plugs Diagram
EPDM Tapered Plugs and Stoppers
Major Diameter "A" (in) Minor Diameter "B" (in) Plug Length "C" (in)
0.100 0.031 1.000
0.125 0.031 0.625
0.125 0.062 0.625
0.187 0.062 0.750
0.200 0.062 0.750
0.250 0.125 0.750
0.250 0.125 1.000
0.344 0.187 0.625
0.344 0.187 1.000
0.375 0.125 1.250
0.375 0.250 0.750
0.437 0.250 1.000
0.472 0.354 0.748
0.500 0.125 2.000
0.500 0.313 0.813
0.594 0.406 1.000
0.656 0.500 1.000
0.750 0.563 1.000
0.781 0.626 1.000
0.812 0.625 1.000
0.938 0.718 1.000
1.024 0.787 1.000
1.063 0.905 1.000
1.260 1.024 1.000
1.338 1.063 1.000
Quote / Samples

Ready to Get Started?

 
Icon

Request Quote
and/or Samples

Contact StockCap for volume pricing and samples for testing and color matching.

Learn More

 
Icon

Contact a Product
Protection Specialist

For help finding the best product protection solutions to meet your specific application.

Learn More

 
Icon

Shop Our
Online Store

For immediate access to our comprehensive line of stock caps, plugs, tapes, discs and more.

Learn More

Cookies on the Stockcap Website

By continuing to use this website, you consent to the use of cookies on your device (unless you have disabled them), as described in our Cookies Policy.