Deep Colour Darkening Resins (as offered by Klauz Specialities) are special epoxy‑based resin systems formulated to enhance the depth and darkness of natural stone surfaces (especially granite) while also filling micro‑cracks and improving surface gloss. They are typically used in stone processing, finishing and polishing workflows to make the stone colour appear more intense and uniform. Enhances/darkens the natural colour of granite and other stones — giving a deeper, richer look with better contrast and aesthetic appeal.Penetrates into the stone’s pores to intensify colour, fill tiny cracks, and boost surface gloss without leaving a surface film.Applied usually with PE foam sheets to spread and work the resin evenly into the stone surface during finishing.