Korkmjöl

Korkmjöl is a Swedish term that translates to "cork flour" or "cork powder." It is derived from the bark of the cork oak tree (Quercus suber), a process that involves grinding or milling the harvested cork into fine particles. This material is a byproduct of the cork industry, typically generated during the production of cork stoppers, flooring, and other cork-based products.

The properties of korkmjöl are largely dependent on the fineness of the milling process. It is lightweight, buoyant, and possesses excellent insulating qualities, both thermal and acoustic. Korkmjöl is also naturally resistant to moisture, flame, and pests. Its texture can range from a coarse meal to a very fine powder.

Due to its characteristics, korkmjöl finds various applications. It is often used as a filler material in composites, plastics, and rubber to reduce weight and improve insulation. In construction, it can be incorporated into plasters, paints, and insulation boards. It is also sometimes used in hobbyist crafts and as a component in some types of mulch or potting soil to improve aeration and drainage. Historically, it may have seen use in more rudimentary insulation or padding applications. The environmental aspect is also notable, as it is a sustainable and renewable material derived from a tree that can be harvested multiple times.