Corks and Materials

Corks present the greatest challenge in mute assembly. While Protec offers specialized corks designed for mutes (available on Amazon), these components cost $8 each, effectively doubling the mute's price.

DIY Alternatives

Several DIY alternatives exist:

Wine Corks

The most straightforward approach involves cutting wine corks into thirds and adhering them to the mute's side. This method is both cost-effective and capable of producing high-quality results, though it requires significant time and effort.

Foam and Rubber

Rubber or neoprene foam weather stripping also serve as excellent material options, particularly when constructing multiple mutes. This rubber gasket material (Amazon Link) runs about $10, but is enough material for a half-dozen mutes.

3D Printed Corks

If you already have a soft, rubbery filament such as TPU or PEBA on hand, you can print excellent cork alternatives. These materials compress well, grip the bell securely, and make it easy to produce consistent pads for multiple mutes without cutting cork by hand.

Mute Cords

Shoelaces work great, and this leather cord is another solid option. Any string thick enough to tie a large stopper knot so it can’t pull through the mute will work.

Material Specifications

For cork or hard rubber components, select materials approximately 6mm (¼ inch) thick. When using neoprene foam or other highly-compressible materials, double the thickness to 12mm.