Polyethylene is resistant to most acids and alkali, has excellent insulation and is easy to weld. Normal use is possible from -50°C to +90°C. 

Cast nylon has improved mechanical, thermal and chemical resistance properties compared with polyamide and by injection or extrusion. By the addition of various additives such as colorants Mp52oil, lubricants and antistatic agents, the properties can be reinforced by anionic polymerization of caprolactam.