Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Fillers Included
- Polymer Name
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Materials Features
- Features & Benefits
Product Attributes
- Range of grades available.
- High mechanical strength & stiffness.
- Able to resist very high impact loads.
- High surface hardness.
- Good chemical resistance.
- May be used in contact with foodstuffs
- Very good dimensional stability.
- Good resistance to creep.
- Minimal absorption of moisture.
- Good sliding properties.
- High wear resistance.
- Product sourced from longstanding manufacturer with ISO accreditation.
Customer Benefits
- Correct grade selection for application is optimized.
- Very good all-round product for diverse engineering applications.
- Stability when dimensional accuracy is important.
- Good wear life in many industrial bearing & gear applications.
- Consistent quality ensures uniform characteristics in machining & performance.
Applications & Uses
- Markets
- Applications
- Plastics & Elastomers End Uses
- Typical Applications
- Mechanical engineering, automotive, textile and foodstuff industries - e.g. gears, meter components, valve disks, impellers, seals, bearings, sliding & spring elements, valve bodies, snap-on connections, pump components, bearing cages, clutch and gearbox parts, sorting & feeding devices.
- Electrical & electronic industry- e.g. coil bodies, insulators, relay and transformer housings.
- Medical technology - E.g. instrument handles, adapters.
- Machinability
The machinability of un-modified acetal is excellent. Good chip forming leads to fine surface finishes. As with all plastic materials, experience has shown that extra care must be taken with larger diameters, especially in the colder months when plastic materials lose some of their toughness and so have less resistance to machining stresses. It’s therefore important that these materials are not machined while in a chilled condition.
Properties
- Mechanical Properties
- Thermal Properties
- Electrical Properties
| Value | Units | Test Method / Conditions | |
| Density (20°C) | 1.52 | g/cm^³ | — |
| Tensile Strength at Yield | 50.0 | MPa | — |
| Elongation at Break | 16.0 | % | — |
| Tensile Modulus of Elasticity | 2500.0 | MPa | — |
| Notched Impact Strength (Charpy) | 4.0 | kJ/m^² | — |
| Ball Indentation Hardness | 120.0 | N/mm^² | — |
| Hardness | 80.0 | Shore D | — |
| Value | Units | Test Method / Conditions | |
| Melting Temperature | 165.0 | °C | — |
| Heat Deflection Temperature (1.8 MPa) | 98.0 | °C | Method A |
| Coefficient of Thermal Expansion (Avg. Between 20 - 60°C) | 120.0 | 10^⁻⁶ .K^⁻¹ | — |
| Service Temperature - Long Term | -50 to +100 | °C | — |
| Service Temperature - Short Term | 140.0 | °C | — |
| Value | Units | Test Method / Conditions | |
| Dielectric Constant (50 Hz) | 3.7 | — | — |
| Dielectric Dissipation Factor (50 Hz) | 0.002 | — | — |
| Dielectric Strength | 33.0 | kV/mm | — |
| Comparative Tracking Index (Solution) | 600.0 | — | — |
Technical Details & Test Data
- Chemical Resistance
Acetal co-polymer has chemical resistance similar to nylon 66, but is slightly more prone to attack – having good resistance to many common solvents, lubricant, esters, ketones and aqueous solutions of acids and alkalis between ph5 and ph11. The co-polymer is not resistant to phenols, cresols, formic acid, concentrated mineral acids and alkalis, and strong oxidizing agents including halogens. The homo-polymer has slightly reduced resistance to alkalis and hot water compared with co-polymer.
Packaging & Availability
- Product Availability
Extruded round bar Natural color made up to 600mm dia, black to 350mm. Modified grades – please call for a quotation Extruded sheet/plate Natural and black colors made to 250mm thk and in a range of area formats. Modified grades – please call for a quotation. Tubular bar Natural up to 350mm o/d. Strip Natural from 0.30mm thk. Sizes not stocked are available on relatively short delivery time. 1, 2 or 3m lengths supplied or cut to customer requirements.