The invention relates to a mineral wool product comprising mineral fibers bonded by a cured binder wherein the binder in its uncured state comprises at least one protein and at least one enzyme.

The present invention provides a pressure-sensitive adhesive composition suitable for forming a pressure-sensitive adhesive sheet having a smooth surface. The pressure-sensitive adhesive composition of the present invention includes a -1,3-glucan derivative G. The pressure-sensitive adhesive composition has a tan of 0.7 or more at 200 C. as determined by the following test. Test: a disc-shaped evaluation sample is produced from a pressure-sensitive adhesive composition. The evaluation sample is subjected to a dynamic viscoelasticity measurement to determine a tan thereof at 200 C.

The invention relates to an aqueous binder composition for mineral fibers comprising at least one hydrocolloid.