Polyoxymethylene (POM) POM scientific name polyethylene oxide POM (or POM), also known as Race Steel, Special Steel. It is based on the aggregate proceeds of formaldehyde as raw materials. POM-H (POM homopolymer), POM-K (POM copolymer) is a high density, high degree of crystalline engineering thermoplastics. Has good physical, mechanical and chemical properties, especially excellent rub resistance. POM is a no no side chain, high-density, high-crystalline linear polymer with excellent overall performance. POM is a surface smooth, shiny, hard and dense material, yellow or white, long-term use in the temperature range of -40 - 100 ° C. Its wear resistance and lubricity superior than most other engineering plastics, there are good oil, peroxide-resistant performance. Very acid, of intolerance alkali and impatience UV radiation. 

 The physical properties of POM tensile strength up to 70MPa, low water absorption, dimensional stability, glossy, these performance than nylon, POM is a highly crystalline resin in the thermoplastic resin is the toughest. With the thermal strength, flexural strength, fatigue resistance are high strength, abrasion resistance and excellent electrical properties. POM performance: the performance values ??for specific gravity 1.43 Melting point 175 ° C tensile strength (yield) 70MPa 15% of the elongation rate (yield) (Break) 15% of the impact strength (unnotched) 108KJ/m2 (notched) 7.6KJ/m2 

 Range of applications POM is a crystalline plastic melting point significantly, once they reach the melting point and melt viscosity of the rapid decline. Heating time is too long when the temperature exceeds a certain limit or melt, it will cause decomposition. POM has good overall performance, thermoplastic is the hardest, is one of the plastic material closest to the mechanical properties of metal species, and its tensile strength, flexural strength, fatigue resistance, abrasion resistance and electrical properties are has an excellent long-term use between -40 degrees - 100 degrees. 

 Different chemical properties of the molecular chain structure, the POM can be divided into polyoxymethylene and acetal copolymer, the former density, crystallinity, high melting point, but the poor thermal stability, narrow processing temperature (10 degrees), the stability of pH slightly low; the latter density, crystallinity, low melting point, but the good thermal stability, difficult to decompose wide processing temperature (50 degrees) the downside is that: by acid corrosion, poor weather, poor adhesion, thermal decomposition and softening temperature close to the limiting oxygen index is small. They are widely used in automotive, electronic appliances, machinery and equipment. You can also do the taps, box windows, wash basin.