Insulation for steel, e.g. natural gas, pipe has silicon dioxide and/or titanium dioxide coating(s) between thermoplastic synthetic sleeving, preferably of polyethylene or polypropylene, and pipe

摘要

The external insulation is produced using thermoplastic synthetic material, preferably polyethylene or polypropylene. At least one coating is used between the plastic sleeving and the steel pipe that consists wholly or partially of silicon dioxide and/or titanium dioxide. At least one further epoxide resin coating is used between the thermoplastic synthetic material and the steel pipe.