Makrofol® Coated Films
Because of its outstanding performance characteristics, polycarbonate resin is widely used to manufacture parts used in a myriad of industries. Parts made of polycarbonate resins and protected with hard, scratch-resistant polyurethane coatings offer superior impact strength, superior dimensional stability, glass-like transparency, excellent thermal resistance and low-temperature toughness in a broad range of high-performance applications in the transportation, construction, electronics, telecommunication, packaging and medical industries, to name a few. Now Bayer MaterialScience LLC is bringing to manufacturers its 3-D formable Makrofol® HF 278 hard-coated film.
3-D, innovative dual-cure technology solves complex cracking issue
In addition to providing excellent scratch resistance, better surface hardness, improved abrasion resistance and higher chemical and stain resistance, new Makrofol HF 278 hard-coated films offer parts makers manufacturing flexibility, because they are formable and offer a deep-gloss finish (“piano effect”).
Makrofol HF 278 formable, hard-coated films are dual-cure technologies with a long shelf life. The hard coat is partially cured on the film and remains stretchable during the forming operation. After the forming operation the film undergoes an ultraviolet (UV) cure, which produces a final hard coat free of brittleness and cracking, and sufficient for use in subsequent insert molding operations. A very good ASTM rating of at least 1H pencil hardness is achievable on back-molded parts with this film.
The dual-cure approach is very attractive to manufacturers of complex parts such as automotive bezels, center stack consoles, electronic housings and household appliances which are formed under high pressures. This new film enables the manufacturer to apply an extremely hard, scratch- and chemical-resistant gloss coating without the concern of post-forming cracking of the hardcoat. This is a great advantage to the manufacturer.
In addition to the Makrofol HS and HF coated films, Bayer MaterialScience Films offers other technologically advanced grades utilizing Multi-Layer technologies for capped scratch resistant surfaces.
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