<prompt> Setting reaction of solution liners:Chemical reactionPhysical evaporationBoth of the aboveNone  <response>: Solution LinersBased on non aqueous solution of acetone, alcohol or ether. Eg: Varnish COPAL WASH.Composition:10 copal resin.90 solvent.Setting reaction: Physical evaporation.Thin film; copal resin remains.Single layer of varnish covers 55 of surface area.If 2-3 layers are applied; 6-80 area is covered. 