The 275 waterproof sheets can be used either wet or dry. They have a high stock removal rate and extremely long lifetime. The Aluminium Oxide grains provide fast cutting results whilst the middle weight paper is suitable for more demanding sanding, where applied pressure should be higher. It is suitable for sanding down coatings and flatting of body and primer fillers. It is also recommended for the removal of paint runs, orange-peel effect and dust inclusions.