The core activity of Grieder Kunststoffverarbeitung is the processing of plastics, particularly thermoplastics such as PMMA (Plexiglas, Acrylic glass), PC (Polycarbonate, Makrolon), PVC (Polyvinyl chloride), PP (Polypropylene), PE (Polyethylene), PS (Polystyrene), ABS (Acrylonitrile Butadiene Styrene), POM (Polyacetal) and PTFE (Teflon). The company offers individual custom-made products and series productions of plastic articles, including illuminated signs, light boxes, signs, acrylic furniture, lamp shades and other technical articles.