New generation of ultra clear aldehydic resin for pigments dispersions resistant to yellowing, with xcellent reversibility, heat resistance. Laropal A81 provides improved adesion, wetting and pigment dispersion properties. Choice of restorers and artists for preparation of high-end mediums and varnishes. Laropal is soluble White Spirit, Shellsol D40(odorless white spirit), pure alcohol and in a wide variety of solvents. If you choose aromatic solvents, to improove stability at lower than 15Cº temperature would be necessesary addition of 5-10% of Shellsol A (to increase aromatic content). We recommend mix of Shellsol D40 80% and shellsol A 20%.There are many recipes of an "perfect" varnish, consisting of 70% of aromatic solvents and 30% of pure alcohol like isopropanol or metanol. Increasing the percentage of aromatic solvent will increase the working time, increasing the alcohol content will give you a cleaner finish but decreased working time. To prepare an perfect varnish at your preference we would recommend test different options with Shellsol D40, Shellsol A, isopropanol or metanol and we also recommend addition of butanol as an slow evaporation alcohol.