Ace Seal is a global manufacturer of custom o-rings, seals, gaskets and other molded rubber & plastic components

Hollow Beer Barrel Bungs & Stoppers


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Hollow beer barrel bungs from Ace Seal are lighter, more flexible, and easier to install than our solid bungs. They’re durable and easy to install and provide a reliable seal in any application. Our hollow barrel stoppers are precision molded from FDA grade/food grade silicone. Our stock size hollow bungs are designed to fit all standard U.S. and French barrels; custom size bungs are also available to fit your unique needs (see below).

Contact us to discuss custom hollow bungs for your application.

Price Each: From $0.000
Total Price: $3.40
Quantity 1-99 100-499 500-999 1000+ 
Price for each $3.400 $3.400 $3.200 Request a quote
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  • 55mm top x 45mm base x 43mm height, with 25.4mm hole width and 35.5mm hole depth

Ace Seal’s hollow silicone beer barrel bungs are available in stock U.S./French size (55mm top x 45mm base x 43mm height, with 25.4mm hole width and 35.5mm hole depth); we can also provide custom hollow barrel bungs in nearly any size your application requires. “Natural” color (translucent white) is standard; custom colors and/or custom printing are also available to meet your unique needs.

Hollow Beer Barrel Stopper Features

  • Precision molded from FDA-approved food grade silicone
  • Available in stock U.S./French size and in custom sizes
  • Natural color is standard; custom colors also available

We also offer hollow beer barrel bungs with top grip lip, solid beer barrel bungs with or without top grip lip, and beer barrel bungs with 3/8” thru-holes.

What is Silicone & Why is It Used for Bungs?

“Silicone” is the general name for a family of polymer materials; it includes any synthetic compound that consists of repeating units of siloxane. Silicone rubber, the most common form of silicone, is used in a broad array of applications. Silicone rubber is, in general, non-reactive, stable, and resistant to fungal growth. It is well-suited to use in harsh environments and extreme temperatures (-75° to 450°F/-60° to 232°C), as these conditions do not compromise silicone rubber’s useful properties. It maintains its dimensional properties at high temps, and doesn’t become brittle in subzero temperatures.

The beneficial chemical and mechanical properties of silicone rubber, as well as the ease of manufacturing and molding this material, make it ideal for beer barrel bungs. Ace Seal uses special, FDA-approved, food grade silicone for all our barrel stoppers.

Ace Seal is Your #1 Source for High Quality Sealing Solutions

Ace Seal is a leading manufacturer of high-quality plastic and rubber sealing solutions for a variety of industry applications. Our exceptional customer service combined with our low-cost tooling and quick turnaround times make us a top choice for our customers around the globe. We maintain an extensive inventory of O-rings, gaskets, and other molded parts to satisfy the most demanding sealing requirements. We look forward to serving your sealing needs.

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