Delrin 500P: specs and equivalent grades
Delrin USA, LLC acetal homopolymer (POM-H), medium viscosity. Published data, grades from other producers to ask about, and how to request a quote from one gaylord.
Updated October 2026
Request a QuoteThe short answer
Delrin 500P NC010 is Delrin USA, LLC's acetal homopolymer (POM-H), medium viscosity, sold for injection molding. Published melt flow is MFR 15 g/10 min, MVR 13 cm³/10 min, measured at 190°C / 374°F, 2.16 kg, ISO 1133, and density is 1.42 g/cm³ (ISO 1183). Grades from other producers to ask about include Hostaform C 13021, Celcon M140 and Celcon M90. They are not identical, so compare the data sheets and run a trial before switching.
Delrin 500P specs from the data sheet
Typical values from Delrin USA, LLC's published data sheet. Typical values are not specifications; the lot COA shows what you actually receive. Values only compare at the same test method and condition.
| Property | Value | Test method or note |
|---|---|---|
| Producer (brand owner) | Delrin USA, LLC | Data sheet |
| Polymer | Acetal homopolymer (POM-H), medium viscosity | |
| Process | Injection molding | |
| Melt flow | MFR 15 g/10 min, MVR 13 cm³/10 min | 190°C / 374°F, 2.16 kg, ISO 1133 |
| Density | 1.42 g/cm³ (ISO 1183) | |
| Tensile modulus | 3,100 MPa (450,000 psi) | ISO 527-2 |
| Tensile stress at yield | 71 MPa (10,300 psi) | ISO 527-2 |
| Flexural modulus | 3,000 MPa (435,000 psi) | ISO 178 |
| Charpy notched impact, 23°C / 73°F | 9.0 kJ/m² (4.3 ft·lb/in²) | ISO 179/1eA |
| HDT at 0.45 MPa / 66 psi | 160°C / 320°F | ISO 75-2/B |
| HDT at 1.8 MPa / 264 psi | 95°C / 203°F | ISO 75-2/A |
| Melting temperature | 178°C / 352°F | ISO 11357-3 |
| Additives | Lubricant and mold release |
Source data sheets are listed at the bottom of this page. Confirm against the current sheet for your exact grade code and color.
Grades to ask about instead of Delrin 500P
These grades from other producers have similar published specs. None is a drop-in replacement: additive packages, flow at molding shear rates, color and approvals differ. If your part, drawing or customer approval names Delrin 500P, any change needs your approval and usually a trial.
| Grade | Producer | Melt flow | Density | Key property | How it compares |
|---|---|---|---|---|---|
| Hostaform C 13021 | Celanese | MVR 12.0 cm³/10 min; MFR 14.0 g/10 min (ISO 1133; Celanese manual table) | 1.41 g/cm³ (ISO 1183) | Tensile modulus 2,900 MPa (421,000 psi), ISO 527; flexural modulus 2,800 MPa (406,000 psi), ISO 178 | Partial match. Acetal COPOLYMER, easy flowing grade; flow within 10% of 500P (MFR 14 vs 15 g/10 min). Melting point 166°C / 331°F vs 178°C / 352°F for 500P. Values from Celanese's Hostaform product manual (data as of June 2011). |
| Celcon M140 | Celanese | MVR 12.0 cm³/10 min (ISO 1133; Celanese manual table) | 1.41 g/cm³ (ISO 1183) | Tensile modulus 2,740 MPa (397,000 psi), ISO 527; flexural modulus 2,640 MPa (383,000 psi), ISO 178 | Partial match. Acetal COPOLYMER that Celanese calls an easy flowing grade for precision and thin-walled parts. Flow is close to 500P (MVR 12 vs 13), but stiffness and melting point are lower than homopolymer. Values from Celanese's Hostaform/Celcon product manual (data as of June 2011). |
| Celcon M90 | Celanese | MVR 8.0 cm³/10 min at 190°C / 374°F, 2.16 kg (ISO 1133); MFR 9.0 g/10 min (ASTM D1238, 2015 sheet) | 1.41 g/cm³ (ISO 1183) | Flexural modulus 2,550 MPa (370,000 psi), ISO 178 | Partial match. Acetal COPOLYMER, not homopolymer; lower flow than Delrin 500P (outside a 20% flow window), lower stiffness, different chemistry |
| Hostaform C9021 | Celanese | MVR 8.0 cm³/10 min; MFR 9.0 g/10 min (ISO 1133; Celanese manual table, test load and temperature not printed there) | 1.41 g/cm³ (ISO 1183) | Tensile modulus 2,850 MPa (413,000 psi), ISO 527; flexural modulus 2,700 MPa (392,000 psi), ISO 178 | Partial match. Acetal COPOLYMER general purpose injection grade; lower flow than 500P (MVR 8 vs 13) and lower stiffness. Values from Celanese's Hostaform product manual (data as of June 2011). Entec states it is FDA compliant; ask Celanese for the letter. |
From each producer's published data. Brand owners and grade names change; confirm on the current data sheet.
Typical uses for Delrin 500P
From Delrin USA, LLC's data sheet and published listings:
- Producer description: medium viscosity acetal homopolymer with improved processing for injection molding; no end uses listed on the sheet we opened
- Automotive specifications listed include ASTM D6778 POM0113, Ford WSK-M4D637-A2 and GM GMP.POM.002
What to check before you switch
- Brand owner shown as Delrin USA, LLC on delrin.com; Entec lists the producer as 'Delrin'. Confirm the producer name on the sheet you receive.
- Property data come from a 2019 UL Prospector copy issued under an earlier brand owner name; ask Delrin USA for the current TDS (Delrin's own data center requires a browser login).
- The listed alternatives are acetal COPOLYMERS. Homopolymer is stiffer with a higher melting point; copolymer generally has better hot-water and alkali resistance. Do not treat them as drop-in replacements without part testing.
- Celcon M90 and Hostaform C 9021 flow less than 500P (MVR 8 vs 13 cm³/10 min). Celcon M140 and Hostaform C 13021 (MVR 12) are close in flow but are still copolymers. No openable data sheet for another producer's acetal HOMOPOLYMER (for example Asahi Kasei Tenac) was found in this pass. All four listed copolymers are Celanese grades; Celcon M90 and Hostaform C 9021 are Celanese sister grades with the same published flow.
- The 500P sheet has no food-contact statement; Delrin sells a separate food-grade variant (FG500P NC-010, listed by Entec). Specify FG grades for food contact.
- Compare melt flow, density and impact only at the same test condition and method (ASTM vs. ISO results differ).
- Ask for the producer's food-contact or regulatory letter for the exact grade if the part needs one.
- Run a trial lot and check shrinkage, cycle time and appearance before you switch production.
Buying Delrin 500P or an equivalent
Send us the grade name, your annual volume and ship-to location. A polymer chemist checks the data sheet and we quote Delrin 500P where we can source it, or a qualified equivalent, saying clearly which one you would get. Orders start at one gaylord. For background on this resin family see Acetal grades and buying guide; for several grades at once, use the resin RFQ template.
Trade names belong to their owners. ResinBridge is not affiliated with these producers; grade names are used only to identify the material. Data reflects published sheets as of October 2026.
Sources
- Protolabs.com/media/1022598/delrin-500p_nc010.pdf
- entecpolymers.com/en-US/products?search=Delrin%20500P
- delrin.com/about-us/
- explore.celanese.com/rs/139-DBZ-834/images/POM-Hostaform-Product-Manual.pdf?version=0
Common questions
What is Delrin 500P?
Delrin 500P NC010 is Delrin USA, LLC's acetal homopolymer (POM-H), medium viscosity, sold for injection molding.
What is the melt flow of Delrin 500P?
MFR 15 g/10 min, MVR 13 cm³/10 min, measured at 190°C / 374°F, 2.16 kg, ISO 1133, per the published data sheet.
What is equivalent to Delrin 500P?
Grades from other producers to ask about include Hostaform C 13021, Celcon M140 and Celcon M90. None is identical; compare data sheets and run a trial, and get approval if your part names Delrin 500P.
Is Delrin 500P food-contact compliant?
Delrin USA, LLC's data sheet does not state food-contact status for this grade; ask for the producer's regulatory letter for the exact grade.
Can ResinBridge quote Delrin 500P?
Yes. Send the grade name and volume. A polymer chemist checks it and we quote the grade where we can source it, or a qualified equivalent, and say which one. Orders start at one gaylord; U.S. and Canada only.
If your grade is not listed, tell us what you run. We source commodity, engineering and specialty resins.
Need Delrin 500P or an equivalent?
A polymer chemist reviews every request, then matches your grade or finds a qualified equivalent and prices it.
What to send for an accurate quote
- The grade name, from any supplier, or a data sheet
- Color (natural, black or a custom match)
- Fill type and percentage, if any
- Melt flow, if you know it
- Quantity for this order and what you use in a year
- Ship-to city and state or province
Quote Delrin 500P or a qualified equivalent
A polymer chemist checks the data sheet and tells you exactly what you would get before you order.
Request a QuoteNot sure which grade fits your part?
Send the grade you run now, or describe the part. A polymer chemist reviews every request.