Polyacetal POM C
POM (Delrin) is a plastic obtained through the polimerization of formaldehydes. Thanks to the highly crystalized structure of its oxygen and metylene groups, it ensures high levels of hardness and strength even without adding any additive materials-structures. It is resistant against alkalis and hot water as well as commonly used organic solvents, petroleum products and most mineral oils.
Some of its properties are superios resistance, elasticity (bounciness), hardness and dimensional stability.
POM (Delrin) is a plastic obtained through the polimerization of formaldehydes. Thanks to the highly crystalized structure of its oxygen and metylene groups, it ensures high levels of hardness and strength even without adding any additive materials-structures. It is resistant against alkalis and hot water as well as commonly used organic solvents, petroleum products and most mineral oils.
Some of its properties are superios resistance, elasticity (bounciness), hardness and dimensional stability.
Dimensional resistance
High resistance against loads and impact
Perfect wear&tear resistance
High mechanical strength and inflexibility
High elasticity
Acting like a bearing in environments without grease
Good level of electricity and insulation properties
Low absorption (water absorption)
Resistant against heat (-50C up to +110C, 150C in short term)
| Physical properties | Test method | Polipom® (POM) Delrin | |
| DIN | ISO | ||
| Specific gravity g/cm3 | 53479 | 1183 | 1.41-1.43 |
| Service temperature 00С | 53461 | 75 | 100 |
| Melting point 00С | – | – | 165-175 |
| Thermal elongation 1/К*10-5 | 53752 | – | 11 |
| Tensile strength N/mm2 | 53455 | 527 | 62-71 |
| Tensile elongation % | 53455 | 527 | 8-10 |
| Rupture resistance N/mm2 | 53455 | 527 | 70 |
| Elongation at rupture % | 53455 | 527 | 20-75 |
| Impact resistance Kj/m2 | 53453 | 179 | – |
| Notch impact resistance Kj / m2 | 53453 | 179 | 8 |
| Elasticity module N/mm2 | 53452 | 178 | ≥2700 |
| Water absorption % | 53495 | 62 | 0.5 |
| Volumetric resistance Ωx cm | 53482 | 167 | >1015 |
| Superficial resistance Ω | 53482 | 167 | >1013 |
| Dielectricity resistance kV/mm | 53481 | 243 | >50 |
| Corrosion (Sand slurry test) % | 58836 | – | – |
| Shore Скала D | 53505 | 75 | |
| Rockwell Skala | – | 2039-2 | M78-86 |
| Ball Notch 358/30 N/mm2 | 53456 | 2039-1 | 140-155 |
Thanks to the above-mentioned technical properties, POLIPOM®-POM (Delrin) is utilized by all sectors mainly in the production of machinery mold components such as gears, cams, rolling mill bearings and bearings subject to overload, conveyor systems, pins, infinite screws, pistons, axles, flakes etc.