Demidekk Ultimate Helmatt is the matte variant of Ultimate Täckfärg. The stain is waterborne and opaque, with a basis of alkyd and acryl (hybrid). The material is elastic, fast-drying and accentuates the wood structure. Aside from wood, the stain can also be applied to stone-like surfaces.

The stain can be used for wood-rich façade elements, like tongue-and-groove board, frame structures, and dormers. It is available in many colours.

The coating has the Nordic Ecolabel Nordic Swan.