WOODSKIN is a hybrid and micro-porous varnish/oil, acting as a "skin" on all wood types (even greasy wood, teack and iriko). Easy application with a satiny finish. Leaves a colorless and uniforme layer, resistant against peeling and crackling. 

No dilution and no sanding between each layer. 
For wood already covered with WOODSKIN or SIKKENS CETOL MARINE, clean with a soft detergent product. Pass slightly with a flat sanding block and rinse with water and leave drying.
For wood already treated with another varnish, take off entierly the old varnish to get back the natural surface.
For natural wood or plywood, no need for sanding or pre-treatment.
For greasy wood, make sure the surface has been prepared and degreased correctly