4. Most conifer wood turpentine to contain turpentine. There turpentine and pine resin rosin, their presence may affect the coating adhesion of the coating and color uniformity. At higher temperatures, the turpentine spill from the timber, causing sticky coating. Clear rosin common method is cleaned with an organic solvent, such as alcohol, turpentine, gasoline, toluene and acetone washing, caustic can also be used, such as 5% 6% 4% sodium carbonate solution or 5% caustic soda solution for cleaning, so that rosin saponification, then brush or sponge dipped in hot water to scrub clean. After the surface clean Xianyang wooden showcase, parts cleaning brush 12 shellac to prevent the inner layer of wood rosin continue leaking. When using sodium hydroxide solution bleaching shenmu wooden showcase, the liquid applied to the wood surface, after half an hour, and then coated with hydrogen peroxide. After treatment with water to scrub the wood surface, and with a weak acid (eg 1.2% of acetic acid or oxalic acid) and sodium hydroxide solution, then wipe clean with water. These two methods of ash, oak and other effects are good, the surface for many years does not change color after bleaching Yulin wooden showcase | Wooden Showcase | Shaanxi Boha Showcase by Shaanxi Boha Showcase Productions Ltd. Shaanxi Boha Showcase Productions Ltd (www.xabhzg.com/) strong, credible, in Xi'an equipment exhibition industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Shaanxi Boha Showcase and you hand into the brilliant, for a better future!