What Are Decibullz Custom Molded Earplugs Made Of?Updated 2 months ago

Decibullz Custom Molded Earplugs are made from a unique, proprietary thermo-fit material that becomes soft and pliable when heated in hot water and hardens to your unique ear shape as it cools. This innovative material is key to delivering a secure, comfortable, and reusable fit — making Decibullz some of the most comfortable and effective earplugs on the market.

Materials Used:

Thermoplastic Custom Molds

• Softens in hot water and molds to the contours of your ear

• Becomes rigid once cooled for a secure, customized fit

• Remoldable as many times as needed — just reheat and reshape

Back Plugs

• Durable silicone components that help keep keep sound out.

Ear Tips (Foam and Silicone)

• Max Isolation Foam Tips (Medium, NRR 31): Expand inside the ear canal for maximum sound dampening

• Triple-Flange Silicone Tips (S, M, L): Flexible, washable, and comfortable for extended wear

  (Silicone tips provide approx. NRR 24)

All materials used in Decibullz products are nontoxic, hypoallergenic, and designed for daily use in a variety of conditions — including high heat, sweat, and high-impact activities.

Cleaning & Maintenance

• Molds and silicone tips can be cleaned with mild soap and warm water

• Foam tips should be replaced periodically for optimal performance

• Always inspect components for wear before each use

Heat Safety

Do not expose your molded earplugs to extreme temperatures (above 120°F/49°C). Prolonged heat exposure, like in a hot car or direct sunlight, can deform the thermo-fit material.

Looking for instructions on molding your earplugs? Watch our full video guide here

Still have questions about materials or performance? Reach out to our team