Kepital F20-03: specs and equivalent grades
Korea Engineering Plastics (KEP) standard medium-viscosity acetal copolymer (POM-C) for general injection molding and some extrusion. Published data, grades from other producers to ask about, and how to request a quote from one gaylord.
Request a QuoteThe short answer
Kepital F20-03 is the standard medium-viscosity acetal copolymer (POM-C) from Korea Engineering Plastics (KEP), for general injection molding and some extrusion. Since a 2022 restructuring, KEP has been owned by Celanese (50%), Mitsubishi Gas Chemical (40%) and Mitsubishi Corp. (10%); it makes the resin and its two owners market it. Published melt flow is 9.0 g/10 min, measured at 190°C / 374°F, 2.16 kg, ISO 1133, and density is 1.41 g/cm³ (ISO 1183), per data provided by KEP Americas. Grades from other producers to ask about include Celcon M90, Duracon M90-44 and Ultraform N2320 003 AT. They are not identical, so compare the data sheets and run a trial before switching.
Also written as: Kepital F20-03 (KEP Kepital F20-03 on distributor sheets). Quote the full code from your drawing or bag label; color and additive suffixes change the grade.
Buying Kepital F20-03: one gaylord to a railcar · supplier COA on every prime lot · ships from 22+ partner warehouse locations · a polymer chemist checks the grade code before we quote · we aim to quote within one to three business days
Have a part number or drawing callout?
Paste it as written. A polymer chemist will tell you which grade it calls for, suggest equivalents and quote it by email.
Kepital F20-03 specs from the data sheet
Typical values from KEP’s Kepital F20-03 data (information provided by KEP Americas, distributor copy), checked October 2026. The sheet lists fewer properties than the Celanese or BASF sheets; ask for KEP’s full data sheet if you need more. 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) | Korea Engineering Plastics (KEP), owned by Celanese (50%), Mitsubishi Gas Chemical (40%) and Mitsubishi Corp. (10%) | Process Worldwide, 2022; the two owners market the resin |
| Polymer | Acetal copolymer (POM-C), medium viscosity | |
| Process | General injection molding and some extrusion | Data sheet |
| Melt flow | 9.0 g/10 min | 190°C / 374°F, 2.16 kg, ISO 1133 |
| Density | 1.41 g/cm³ | ISO 1183 |
| Tensile modulus | 2,750 MPa (399,000 psi) | ISO 527, per Celanese’s Celcon F20-03 listing |
| Tensile strength | 65 MPa (9,430 psi) | ISO 527, 50 mm/min |
| Elongation at yield / at break | 10 % / 32 % | ISO 527, 50 mm/min |
| Flexural strength | 87 MPa (12,620 psi) | ISO 178 |
| Flexural modulus | 2,550 MPa (370,000 psi) | ISO 178 |
| Notched Charpy impact | 6.5 kJ/m² at 23°C; 5.5 kJ/m² at -30°C | ISO 179 |
| HDT 1.8 MPa | 100°C / 212°F | ISO 75 |
| Melting point | 165°C / 329°F | ISO 3146 |
| Mold shrinkage, flow | 2.0 % | 3 mm thick |
| Water absorption | 0.20 % | ISO 62 (condition not stated) |
| Coefficient of linear thermal expansion | 120 µm/m·°C | ISO 11359 |
| Electrical | Volume resistivity 1E+16 ohm-cm; dielectric strength 19 kV/mm | IEC 60093; IEC 60243 |
| Flammability | Not on the data sheet copy we used. Check the UL yellow card if you need a UL 94 rating. | |
| Drying | Not published on the data sheet | KEP Americas data, distributor copy |
| Melt and mold temperature | Not published on the data sheet | KEP Americas data, distributor copy |
| Food contact | The data sheet copy makes no food-contact statement. Ask the supplying company for the regulatory letter for the exact grade and color. |
Source data sheets are listed at the bottom of this page. Confirm against the current sheet for your exact grade code and color.
Cross-check: Celanese lists a Celcon F20-03 grade in its Chemille database (checked October 31, 2026) with the same published values: MFR 9 g/10 min, density 1.41 g/cm³, tensile modulus 2,750 MPa, flexural modulus 2,550 MPa, notched Charpy 6.5 kJ/m² and HDT 100°C at 1.8 MPa. In North America, ask whether your paperwork will say Kepital or Celcon.
Grades to ask about instead of Kepital F20-03
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 Kepital F20-03, any change needs your approval and usually a trial.
| Grade | Producer | Melt flow | Density | Key property | How it compares |
|---|---|---|---|---|---|
| Celcon M90 | Celanese | MVR 8 cm³/10 min (190°C / 374°F, 2.16 kg, ISO 1133) | 1.41 g/cm³ (ISO 1183) | Tensile modulus 2,760 MPa (ISO 527); flexural modulus 2,550 MPa (ISO 178); notched Charpy 6 kJ/m² (ISO 179); HDT 101°C at 1.8 MPa (ISO 75) | Close match on flow, stiffness and HDT. Celanese’s medium-viscosity copolymer; notched impact slightly lower on the sheet. Celanese co-owns KEP, but Celcon M90 is a separate grade with its own approvals, so treat a switch as a change. Quote this alternative › |
| Duracon M90-44 | Daicel (formerly Polyplastics) | MFR 9 g/10 min; MVR 8 cm³/10 min (190°C / 374°F, 2.16 kg, ISO 1133) | 1.41 g/cm³ (ISO 1183) | Stiffness, impact, HDT and UL rating not verified; ask for Daicel’s current sheet | Partial match on what we could verify: same MFR and density. The distributor copy of the sheet we opened shows mechanical values identical to the high-viscosity Duracon M25-44, so we have not listed them; ask for Daicel’s current sheet before comparing stiffness, impact or HDT. Quote this alternative › |
| Ultraform N2320 003 AT | BASF | MVR 7.5 cm³/10 min; MFR 8.8 g/10 min (190°C / 374°F, 2.16 kg, ISO 1133) | 1.41 g/cm³ (ISO 1183) | Tensile modulus 2,700 MPa; yield stress 64 MPa (ISO 527); notched Charpy 6.5 kJ/m² (ISO 179/1eA); HDT 95°C at 1.8 MPa (ISO 75) | Close to partial match. BASF’s rapid-solidifying standard injection grade, with a drinking water listing (cold and warm) per BASF. Same notched impact; slightly lower flow and HDT (95°C vs 100°C). LEV, XLEV, PRO and BMB versions carry separate codes. Quote this alternative › |
From each producer’s published data: Celanese’s Chemille database for Celcon M90, a distributor copy of the Duracon sheet and BASF’s September 2025 Ultraform product range brochure. Brand owners and grade names change; confirm on the current data sheet.
Typical uses for Kepital F20-03
From KEP’s description of the grade (the sheet gives no application list):
- General injection-molded parts that need well-balanced properties
- Some extrusion applications
What to check before you switch
- Who supplies it: KEP makes Kepital, and Celanese and Mitsubishi Gas Chemical market it. Ask which channel your approved material came through; data sheets, UL files and lot paperwork can differ by channel.
- The sheet is thin. It gives no drying, melt or mold settings and no UL rating. Get KEP’s full sheet before setting up a new tool.
- Shrinkage on the Kepital sheet (2.0 % at 3 mm) is not measured the same way as the ISO 294-4 plaque values on the Celanese and BASF sheets. Compare on first articles, not on paper.
- Medium-viscosity copolymers from different producers mold similarly but not identically. Check gate freeze, cycle time and dimensions in a trial. See best plastic for gears if the part is a gear.
- Keep acetal away from PVC in the same barrel and purge thoroughly between them; the two degrade each other.
- 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 Kepital F20-03: price, lead time and lot size
- Lot size. From one gaylord to a railcar. See gaylord, LTL and truckload for typical weights per box.
- Where it ships from. 22+ partner warehouse locations. Material already in a partner warehouse usually moves sooner than a grade that has to come from the producer; your quote says which applies.
- Price. We do not publish prices because they move with feedstock, freight and order size. What moves your price most: lot size, color, ship-to region, and whether you need Kepital F20-03 itself or can accept a matched alternative. See how resin is priced and the monthly market update.
- Paperwork. Supplier COA on every prime lot (what a COA shows). Ask for the producer’s regulatory letter or UL file if your part needs them.
- Trying an alternative? Start with one gaylord as a trial lot, molded and checked before you commit a full release.
- If Kepital F20-03 itself is not available. Some branded grades are sold only through the producer’s own channels or go on allocation. If we cannot source it, we tell you, then quote a matched alternative with a side-by-side comparison.
Send the grade code, your annual volume and ship-to location. A polymer chemist checks it before we quote; we have been in the resin business for 30+ years. 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
- Celanese Chemille database: Celcon F20-03 (checked Oct 31, 2026)
- KEP Kepital F20-03 data, information provided by KEP Americas (distributor copy, PDF)
- Process Worldwide: Celanese and Mitsubishi Gas Chemical complete KEP restructuring, 2022
- Celanese Celcon M90 grade data (Chemille, Celanese’s materials database)
- Polyplastics Duracon M90-44 data sheet (distributor copy, PDF)
- TOPAS / Daicel: Polyplastics business merged into Daicel, February 2026
- BASF Ultraform (POM) product range brochure, September 2025 (PDF)
Common questions
What is Kepital F20-03?
Kepital F20-03 is the standard medium-viscosity acetal copolymer (POM-C) from Korea Engineering Plastics (KEP), for general injection molding and some extrusion.
What is the melt flow of Kepital F20-03?
9.0 g/10 min, measured at 190°C / 374°F, 2.16 kg, ISO 1133, per data provided by KEP Americas.
What is equivalent to Kepital F20-03?
Grades from other producers to ask about include Celcon M90, Duracon M90-44 and Ultraform N2320 003 AT. None is identical; compare data sheets and run a trial, and get approval if your part names Kepital F20-03.
Who makes Kepital F20-03?
Korea Engineering Plastics (KEP). Since a 2022 restructuring KEP has been owned by Celanese (50%), Mitsubishi Gas Chemical (40%) and Mitsubishi Corp. (10%); KEP makes the resin and its two owners market it.
Can ResinBridge supply Kepital F20-03?
We quote Kepital F20-03 when our supply partners can source it. If they cannot, we say so up front and quote a matched alternative, named on the quote with its data sheet, so you can decide whether to trial it.
If your grade is not listed, tell us what you run. We source commodity, engineering and specialty resins.
Need Kepital F20-03 or an equivalent?
A polymer chemist reviews every request, then matches your grade or finds a matched alternative 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 Kepital F20-03 or a matched alternative
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