Thin-walled: light, space-saving. Good mechanical strength due to semi-rigid material. Highly transparent even after complete shrinkage. Very good fire protection properties. Very good mechanical and chemical resistance at high temperatures. Approved for military technology. TK20 is used for insulation and protection against mechanical and chemical stress, especially at high temperatures. TK20 also protects cable connections and soldering points, as well as fragile objects such as glass bodies, pipettes or fluorescent tubes.