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

Silicone Bourbon Barrel Bungs

Our breathable silicone bungs offer a reusable, easy-to-remove solution for plugging your bourbon barrels during fermentation. All bungs are FDA-approved and ABV resistant to provide a tight seal that won’t mold or deteriorate over time. We offer silicone stoppers in a range of sizes and styles to fit most U.S. and French bourbon barrels.

Wholesale & Custom Silicone Stoppers from Ace Seal

Ace Seal is a leading provider of wholesale and custom silicone stoppers for your bourbon application. Click into any of the products below to view additional details and add to your cart. Contact an expert for more information or request a quote on custom bourbon barrel bungs today.


Bourbon Barrel Bungs for Optimal Fermentation & Ventilation

Our bourbon barrel bungs fit snug inside the barrel to avoid leakage and prevent the bung from falling inside. Made from malleable silicone, these stoppers make it easy to open and close barrels when necessary. Different from traditional cork barrel bungs, silicone stoppers are completely reusable and can withstand the high levels of ABV that bourbon often reaches during maturation.

Custom & Standard Bourbon Barrel Stoppers from Ace Seal

Our standard bourbon barrel bungs are manufactured in a translucent white color, but we also offer custom sizes, colors, and printed designs to work with your unique application. Our selection of wholesale bourbon barrel bungs includes:

Solid Bourbon Barrel Bung with Top Grip Lip: This standard, FDA approved bourbon barrel plug has a top grip lip to enhance sealing power and make removal even easier.

Hollow Bourbon Barrel Bung with Top Grip Lip: These bourbon barrel bungs have a hollow center, making them more flexible and easier to install in challenging applications.

Standard Bourbon Bung with 3/8” Thru-Hole: Thru-hole bourbon barrel bungs feature a 3/8” hole through which a tube or other implement can be inserted without affecting the seal.

Buy the Custom or Wholesale Bourbon Barrel Fermentation Bungs You Need

Ace Seal manufactures high quality, durable silicone stoppers for beer, whiskey, scotch, and wine making applications. Made from high quality food grade silicone, our standard and custom bourbon bungs are the perfect solution for U.S. and French barrels of all sizes. Contact us with any questions or request a quote on custom bourbon barrel bungs today.