Climbs skirt is silicon fluorine rubber product. It is the only  producer in china. It is detected by national authority institution. Its insulatibity, hydrophobic and mobility etc. are all better than general rubber products. When use in normal temperature, bond the umbrella skirt and porcelain by silicon fluorine bond. Attention to fill by bond at the opening joint, don’t leave clearance, make the umbrella skirt and porcelain to one thing. Clear odd bond after planish. The power can run after the surface is dry