Poolflex thermal insulation coatings are made of foamed polyethylene (PE), with a closed inner structure with a natural skin. They have a cylindrical shape and a longitudinal incision, gray with metallic gloss. Poolflex covers are intended for thermal insulation of pipelines, fittings and installation devices located inside and outside buildings. Insulations installed outside buildings require protection against the effects of solar radiation and atmospheric conditions, by covering the surface with protective paint or using protective coats.