lamp, forMLOs - bitumen collection Sculpture

bitumen, glas; Mixtures of hydrocarbons and other substances, occurring naturally or obtained by distillation from coal or petroleum, that are a component of asphalt and tar and are used for surfacing roads and for waterproofing. Bitumen is a black, thermoplastic product which has a viscosity that varies with temperature. Different sorts and grades, with different chemical properties that is viscosity and flow rate exist. One Bitumen sort is solid at ambient temperatures, but when heated, it can be cast. Another is tough-flowing at room temperature; it flows and melts and looses his form very slowly but inexorable. edition of 5