Hostaform M25AE – High Viscosity POM-C for Extrusion Shapes & Thick-Wall Parts

描述

Hostaform M25AE is a high viscosity, special grade POM‑C (Polyoxymethylene Copolymer) developed specifically for extrusion applications, genuinely manufactured by Celanese and imported as original product. As an authorized distributor and trader, we supply genuine material with full traceability and direct access to official Celanese technical documentation.

This unfilled acetal copolymer is a special grade targeted for extrusion shapes (rod, bar, plate, etc.) free of center porosity in large diameters and thicknesses. The high viscosity (MVR 2.5 cm³/10min) provides outstanding melt strength essential for maintaining dimensional stability during extrusion of thick cross-sections.

Hostaform M25AE is a very hard and rigid, heavy-metal free POM copolymer grade that exhibits outstanding chemical resistance (solvents, fuels & strong alkalis), hydrolysis resistance, fatigue resistance, creep resistance, moisture resistance, and stress cracking resistance. It also exhibits toughness down to -40°C, good heat distortion temperature (up to 91°C), very good slip/wear properties, excellent resilience, and low moisture absorption. We hold regular stock, supporting small trial orders and large‑volume bulk shipments for extrusion and demanding end‑users.

Key Features of Hostaform M25AE

• High Viscosity / High Melt Strength – MVR of 2.5 cm³/10min and MFR of 2.9 g/10min (190°C/2.16kg), providing excellent melt stability for extrusion of large diameters and thick cross-sections

• Center Porosity Free – Specifically designed for extrusion shapes (rod, bar, plate, etc.) free of center porosity in large diameters and thicknesses

• Extrusion Optimized – Suitable for profile extrusion, sheet extrusion, and other extrusion processes

• Very Hard & Rigid – A very hard and rigid, heavy-metal free POM copolymer grade

• Excellent Chemical Resistance – Resistant to solvents, fuels, and strong alkalis

• Good Hydrolysis Resistance – Maintains core mechanical properties in moist operating environments

• Good Mechanical Properties – Tensile modulus of 2400 MPa and yield stress of 61 MPa

• Excellent Impact Resistance – Charpy notched impact strength of 8.5 kJ/m² at 23°C

• Good Heat Resistance – Melting temperature of 163°C and heat deflection temperature of 91°C at 1.8 MPa

• Drinking Water Contact Acceptable – Suitable for drinking water contact applications

• Low Moisture Absorption – Humidity absorption of 0.2% ensures dimensional stability

• Heavy‑Metal Free – Environmentally friendly formulation

• Contains Release Agent – Facilitates easy demolding during processing

Typical Applications for Hostaform M25AE

Explore our full range of engineering plastics solutions for more industry‑specific case studies. See also our full POM product portfolio .

Material Advantages of Hostaform M25AE

What makes Hostaform M25AE the preferred material for extrusion shapes and thick‑wall applications? Below are its core practical advantages:

Center Porosity Free Extrusion
With high viscosity (MVR 2.5 cm³/10min) and specially formulated rheology, Hostaform M25AE is targeted for extrusion shapes (rod, bar, plate, etc.) free of center porosity in large diameters and thicknesses. This ensures consistent quality throughout the cross-section of extruded parts.

High Viscosity / High Melt Strength
The high molecular weight provides outstanding melt strength essential for maintaining dimensional stability during extrusion of thick cross-sections, preventing sagging and deformation.

Very Hard & Rigid
A very hard and rigid grade that provides exceptional structural strength and surface hardness for demanding applications.

Excellent Chemical & Environmental Resistance
Outstanding resistance to solvents, fuels, strong alkalis, hydrolysis, fatigue, creep, moisture, and stress cracking.

Good Heat Resistance
Melting temperature of 163°C and heat deflection temperature of 91°C at 1.8 MPa ensure thermal stability during processing and service.

Excellent Impact Resistance
Notched impact strength of 8.5 kJ/m² at 23°C ensures durability.

Versatile Processing Capabilities
Hostaform M25AE is suitable for multiple processing methods including profile extrusion, sheet extrusion, other extrusion processes, and injection molding.

Drinking Water Contact Acceptable
Suitable for drinking water contact applications, expanding its utility in potable water systems.

Low Moisture Absorption
Humidity absorption of only 0.2% ensures dimensional stability across varying environmental conditions.

Heavy‑Metal Free
Environmentally friendly formulation.

Batch‑to‑Batch Consistency
Celanese manufactures this grade under strict ISO quality standards for consistent property across shipments.

Reliable Supply
We maintain active inventory and stable supply chains. For more supply‑chain details, visit our company background page .

Typical Properties (ISO Standards)

Typical properties of Hostaform M25AE measured to ISO standards are listed below:

Important Notes on Typical Data:

1. Values listed are typical and sourced from Celanese official data sheets for Hostaform M25AE. They do not constitute binding product specification.

2. Batch‑to‑batch deviations may exist. For critical applications, validate performance with batch‑specific COA certificate.

3. Final part performance depends on component design, processing parameters and end‑use environment.

4. Celanese original TDS shall serve as definitive technical reference. Request the latest official Hostaform M25AE TDS from our sales team.

Processing Guidelines (Extrusion & Injection Molding)

Recommended processing parameters for Hostaform M25AE:

Critical Processing Warnings for Hostaform M25AE:

• Extrusion Considerations: Hostaform M25AE is a special grade targeted for extrusion shapes (rod, bar, plate, etc.) free of center porosity. Standard extruders with grooved feed zone and short compression screws (minimum 25 D) are recommended.

• Profile & Sheet Extrusion: For profile extrusion, melt temperature of 180-190°C is recommended. For very thick wall thickness profiles, after-annealing at 130-140°C for 10 min/mm thickness is recommended to reduce internal stress.

• Drying: General drying is not necessary due to low moisture absorption. In case of bad storage conditions (water contact or condensed water), use a recirculating air dryer at 100-120°C for 3-6 hours.

• Thermal Degradation Risk: POM‑based material can decompose under excessive heat and release formaldehyde vapors. Guarantee sufficient ventilation; avoid overly long barrel residence times.

• Material Purity Requirement: Strictly prevent cross‑contamination with other polymer grades. Contamination will degrade the high‑viscosity and extrusion performance.

• Regrind / Recycled Material Notice: We do not recommend adding regrind for this high‑viscosity specialty grade. Reprocessing reduces molecular weight and compromises the core melt‑strength and extrusion advantages. If regrind usage is mandatory, keep percentage below 10% and complete pre‑validation testing first.

• Storage Guidance: Store pellets in cool, dry conditions; keep sealed in original factory packaging whenever possible.

Related Products

• Explore Our Full POM Product Portfolio – Browse all POM copolymer and homopolymer grades we supply

• High Viscosity POM Grades – Discover other high melt strength grades for extrusion and demanding applications

• POM for Extrusion Applications – View grades specifically suited for profile and sheet extrusion

• POM for Rod & Bar Extrusion – View grades for extruded shapes free of center porosity

• About Our Company – Learn more about our supply capabilities and quality assurance

Technical Documents

We provide complete supporting documentation for material selection and compliance verification.

Request any document above by:

• Email: ruiqingchem@gmail.com

• Online form: Our contact page

We reply within one working business day. Please clearly state material grade (Hostaform M25AE) and document type you require.

External Reference

For further authoritative information, please visit the official Celanese Hostaform product portal and download the latest datasheet for Hostaform M25AE.

Major technical standards referenced inside this article:

• ISO 1183 – Density measurement

• ISO 527-1/-2 – Tensile properties

• ISO 178 – Flexural properties

• ISO 179/1eU / 1eA – Impact resistance

• ISO 75-1/-2 – Heat deflection temperature

• ISO 1133 – Melt volume-flow rate

• ISO 11357-1/-3 – Melting temperature

• ISO 11359-1/-2 – Coefficient of linear thermal expansion

• ISO 62 – Humidity absorption

• ISO 3795 (FMVSS 302) – Automotive flammability

• ISO 1043-1 – Chemical abbreviation

• ISO 11469 – Part marking code

Our technical team can supply relevant standard excerpts for your engineering reference.

FAQ

Q1: What is Hostaform M25AE and what is it used for?
A: Hostaform M25AE is a high viscosity, special grade POM‑C (Polyoxymethylene Copolymer) developed specifically for extrusion applications. It is targeted for extrusion shapes (rod, bar, plate, etc.) free of center porosity in large diameters and thicknesses. It is widely used in extruded rods, bars, plates, profiles, industrial machined components (gears, bearings, wear pads), automotive fuel system components, chemical processing components, food and drinking water contact applications, and medical devices.

Q2: What does “M25AE” mean in the grade name?
A: M indicates high molecular weight / high viscosity; 25 denotes the product series; AE stands for the specific extrusion formulation within the Hostaform family. The grade is a special acetal copolymer targeted for extrusion shapes.

Q3: What makes this grade different from standard POM grades?
A: Hostaform M25AE is a special extrusion grade with high viscosity (MVR 2.5 cm³/10min) specifically formulated to produce extruded shapes (rod, bar, plate, etc.) free of center porosity in large diameters and thicknesses. Standard POM grades typically have lower viscosity and are not optimized for porosity-free thick-section extrusion.

Q4: What are the key mechanical properties?
A: Tensile modulus 2400 MPa, tensile stress at yield 61 MPa, tensile strain at yield 11%, flexural modulus 2400 MPa, Charpy notched impact strength 8.5 kJ/m² at 23°C, Charpy impact strength 250 kJ/m² at 23°C and -30°C, melting temperature 163°C, and heat deflection temperature 91°C at 1.8 MPa.

Q5: What is the MVR?
A: Melt‑volume‑flow‑rate equals 2.5 cm³/10min and melt mass-flow rate equals 2.9 g/10min measured under 190°C / 2.16 kg test condition.

Q6: What processing methods is this material suitable for?
A: Hostaform M25AE is suitable for profile extrusion, sheet extrusion, other extrusion processes, and injection molding. It is specifically optimized for extrusion shapes free of center porosity.

Q7: Is drying required before processing?
A: Drying is not necessary due to low moisture absorption of the resin. In case of bad storage conditions (water contact or condensed water), drying at 100-120°C for 3-6 hours is recommended.

Q8: What are recommended processing‑temperature windows for extrusion?
A: For extrusion, melt temperature of 180-190°C is recommended. For injection molding, optimum melt temperature is 200°C with range 190-210°C. Optimum mold temperature: 100°C; range: 80-120°C.

Q9: What is the automotive flammability rating?
A: Burning rate 36.5 mm/min for 1 mm thickness under FMVSS 302 / ISO 3795 test.

Q10: Is this material suitable for drinking water contact?
A: Yes, Hostaform M25AE is suitable for drinking water contact applications.

Q11: Can I buy this material and what is lead‑time?
A: Yes. Submit your inquiry via our quick inquiry form or email ruiqingchem@gmail.com, specify quantity, application and delivery address. Regular orders 1‑5 tons ship within 7‑10 working days after payment confirmation. Large‑volume or urgent orders can be negotiated separately.

Q12: What are limitations?
A: POM‑C does not resist strong mineral acids, powerful oxidizing agents, or continuous exposure to hot water >80°C. Consult our technical team for chemical‑compatibility data for your exact working environment.

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• Required quantity (kg or tons)

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• Target application and part brief (rod/bar/plate extrusion, profile extrusion, machined components, etc.)

• Core performance requirements (center porosity free, chemical resistance, dimensional stability, etc.)

• Document requirement (TDS, SDS, drinking water contact certification, FMVSS 302 compliance, etc.)

Sample Policy:

• Samples are for laboratory validation tests only, not for mass‑production use.

• Buyer bears international sample‑shipping freight.

• If bulk‑material performance deviates from sample reference, Celanese official TDS serves as authoritative benchmark.

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Disclaimer

DISCLAIMER: All technical data is referenced from original Celanese typical values for Hostaform M25AE. Our company acts as authorized distributor/trader rather than original manufacturer. Final component performance depends on part geometry, processing setup and end‑use environment. Buyers shall independently validate material suitability for individual applications. Our firm bears no liability for finished‑part failure caused by improper design or improper processing. Always reference latest Celanese official TDS of Hostaform M25AE as definitive specification.