Engineering Plastic · Engineering Thermoplastic
POM
POM is an engineering polymer — stiff dimensional acetal. Typical values: 65 MPa yield, 1.41 g/cm³, rated to 100 °C. Available for Injection molding at FabDigit.
Properties
Typical room-temperature values in the Unfilled condition. Metric first, imperial in gray. The bars show where POM sits against the other 74 polymer grades in the catalog.
Datasheet
| Yield strength | 65 MPa9 ksi |
|---|---|
| Tensile strength | 65 MPa9 ksi |
| Hardness | 120 HRR |
| Density | 1.41 g/cm³0.051 lb/in³ |
| Specific strength (yield ÷ density) | 46 |
| Min service temp | -40 °C-40 °F |
| Max service temp | 100 °C212 °F |
| Electrical conductivity | < 0.001 % IACSinsulator |
| Machinability | Very good75 / 100 |
| Weldability | Excellent92 / 100 |
| Formability | Excellent92 / 100 |
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Against other polymer grades
Strength versus weight in the polymer family
Yield strength against density for every polymer grade FabDigit runs. POM is highlighted; hover a dot for its name, or open the interactive family chart.
Manufacturability
The process limits FabDigit's quote engine applies to POM. Design inside these and the part quotes instantly; outside them it routes to an engineer.
Injection molding
| Mold shrinkage | — |
|---|---|
| Wall thickness | — – — |
| Recommended draft | — |
| Pre-drying | — |
Conditions and tempers
How POM is supplied and what each state is for. The default is what FabDigit quotes unless your drawing says otherwise.
| Condition | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
UnfilledDefault Grade Modifier | Tougher and cheaper than filled — snap fits, housings, wear parts | — | 66 | 40 | — |
GF10 10% Glass Fiber (GF10) | Slightly stiffer than unfilled, keeps most of the toughness | — | 80 | 8 | — |
GF25 25% Glass Fiber (GF25) | Between GF20 and GF30 — stiffness/toughness middle ground | — | 120 | 3.5 | — |
PTFE 20% Additive | Slipperier and longer-wearing than 10% — heavier slide duty | — | 50 | 18 | — |
Silicone Lubricated Additive | Easier sliding in high-cycle cams and guides | — | 60 | 30 | — |
Heat treatment and post-processing
Operations FabDigit's suppliers routinely run on POM, ranked by how often they make sense for this grade.
Post-processing
| Manual Deburr | Deburrstandard |
|---|---|
| Edge Break (0.5mm) | Deburr |
| Heat-Stake Insert | Assembly |
| Ultrasonic Insert | Assembly |
| Laser Engrave | Marking |
| Press-fit Insert | Assembly |
| Silk Screen | Marking |
| CMM Inspection | Inspection |
| FAI Report | Inspection |
| Individual Bag | Packaging |
Surface finishes for POM
Coatings and treatments compatible with polymer on the processes POM runs on. Pick them in the quote configurator or call them out on the drawing.
Injection Molding Coating
- EMI Shielding Coating
- Soft Touch Coating
- Spray Painting
- UV Coating
Marking / Decoration
- Chemical Etching
- Embossing / Debossing
- Hot Stamping
- In-Mold Labeling (IML)
- Ink Stamping
- Laser Marking
- Pad Printing
Metallization / Functional
- Chrome Plating (Plastic)
Stock forms
Raw-material forms FabDigit sources POM in.
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.