Hostaform XT 20 – Highly Impact Modified POM-C for Demanding Applications

描述

Hostaform XT 20 is a highly impact modified acetal copolymer (POM-C) grade, 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 highly impact modified grade for very demanding applications. Hostaform XT 20 provides exceptional impact strength and flexibility over standard impact modified acetal copolymer grades. It is the highest impact grade in the Hostaform portfolio, specifically designed for applications requiring maximum toughness and energy absorption.

Hostaform XT 20 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, good heat distortion temperature, very good slip/wear properties, excellent resilience, and low moisture absorption. Available in natural, it is supplied globally across North America, Europe, Asia Pacific, South and Central America, and Near East/Africa. With regular stock availability, we support both trial orders and large‑volume bulk shipments for automotive, industrial, and consumer applications.

Key Features of Hostaform XT 20

• Highly Impact Modified – Provides exceptional impact strength and flexibility over standard impact modified acetal grades

• Exceptional Notched Impact Strength – Charpy notched impact strength of 100 kJ/m² at 23°C – the highest in the Hostaform portfolio

• Good Low Temperature Impact – Charpy notched impact strength of 15 kJ/m² at -30°C and 14 kJ/m² at -40°C (Izod)

• Very Low Melt Flow / High Molecular Weight – MVR of 1 cm³/10min (190°C/2.16kg)

• Good Stiffness – Tensile modulus of 1200 MPa

• High Ductility – Yield strain of 25%

• Good Heat Resistance – Melting temperature of 165-166°C and heat deflection temperature of 124°C at 0.45 MPa

• Low Moisture Absorption – Water absorption of 0.8% and humidity absorption of 0.25%

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

• Heavy‑Metal Free – Environmentally friendly formulation

• Contains Release Agent – Facilitates easy demolding during processing

• Versatile Processing – Suitable for injection molding, profile extrusion, and blow molding

• Global Availability – Available in North America, Europe, Asia Pacific, South and Central America, Near East/Africa

Typical Applications for Hostaform XT 20

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 XT 20

What makes Hostaform XT 20 the preferred material for maximum impact resistance applications? Below are its core practical advantages:

Exceptional Impact Strength – Highest in the Hostaform Portfolio
Hostaform XT 20 provides exceptional impact strength and flexibility over standard impact modified acetal grades. With Charpy notched impact strength of 100 kJ/m² at 23°C – the highest in the Hostaform portfolio – this grade delivers unparalleled toughness for the most demanding applications.

Excellent Low Temperature Impact Performance
With Charpy notched impact strength of 15 kJ/m² at -30°C and Izod notched impact strength of 14 kJ/m² at -40°C, Hostaform XT 20 ensures reliable performance even in extreme cold environments. This makes it ideal for automotive components exposed to cold climates.

High Ductility for Energy Absorption
With a yield strain of 25% and a Poisson’s ratio of 0.498, this material offers exceptional ductility for energy-absorbing applications. It belongs to the “maximum flexibility energy-absorbing” category of POM – capable of absorbing impact energy through significant deformation without brittle fracture.

Very Low Melt Flow for High Molecular Weight Toughness
With an MVR of 1 cm³/10min – the lowest in the Hostaform series – Hostaform XT 20 offers high molecular weight characteristics that contribute to its exceptional toughness and impact resistance.

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

Good Heat Resistance
Melting temperature of 165-166°C and heat deflection temperature of 124°C at 0.45 MPa ensure thermal stability during processing and service.

Versatile Processing Capabilities
Hostaform XT 20 is suitable for multiple processing methods including injection molding, profile extrusion, and blow molding. The extrudable grade opens new areas of application including technical pipes and hoses.

Heavy‑Metal Free
Environmentally friendly, heavy‑metal‑free 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 Hostaform XT 20. For more supply‑chain details, visit our company background page .

Typical Properties (ISO Standards)

Typical properties of Hostaform XT 20 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 XT 20. 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 XT 20 TDS from our sales team.

Processing Guidelines (Injection Molding & Extrusion)

Recommended processing parameters for Hostaform XT 20:

Critical Processing Warnings for Hostaform XT 20:

• Low Melt Flow Processing: With MVR of 1 cm³/10min – the lowest in the Hostaform series – Hostaform XT 20 is a very low flow/high molecular weight grade. Ensure adequate injection pressure and mold temperature to achieve complete filling of complex parts.

• Processing Temperature Limit: Do not heat over 205°C (400°F) to avoid burning and discoloring the product.

• Drying: Drying is not normally required. However, drying is suggested especially if material has come in contact with moisture through storage, handling or regrind use. Dry to prevent splay and odor problems. Recommended drying: 100°C for 3-4 hours.

• Extrusion / Blow Molding: Hostaform XT 20 is suitable for profile extrusion and blow molding. Adjust extrusion parameters (die geometry, melt temperature, draw ratio) accordingly for optimal results.

• Thermal Degradation Risk: POM‑based material can decompose under excessive heat and release formaldehyde vapors. Guarantee sufficient ventilation; avoid overly long barrel residence times. Max. melt temperature 210°C.

• Material Purity Requirement: Strictly prevent cross‑contamination with other polymer grades. Contamination will degrade the impact-modified properties.

• Regrind / Recycled Material Notice: We do not recommend adding regrind for this specialty grade. Reprocessing may compromise the impact properties and high molecular weight characteristics. 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

• Highly Impact Modified POM Grades – Discover other high-impact grades for demanding applications

• Extrusion POM Grades – View grades suited for profile extrusion and blow molding

• POM for Automotive Applications – View grades specifically suited for automotive interior components

• 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 XT 20) and document type you require.

External Reference

For further authoritative information, please refer to the official Celanese Hostaform product portal and the latest material datasheets for Hostaform XT 20.

Key technical standards referenced in this document include:

• ISO 1043-1 / ISO 11469 – Resin identification and part marking

• ISO 1183 – Density measurement

• ISO 1133 – Melt volume-flow rate

• ISO 527-1/-2 – Tensile properties

• ISO 178 – Flexural properties

• ISO 179/1eU / 1eA – Charpy impact resistance

• ISO 180/1A – Izod impact resistance

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

• ISO 11357-1/-3 – Melting temperature

• ISO 294-4, 2577 – Mold shrinkage

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

• ISO 2039-2 – Rockwell hardness

• ISO 62 – Water/humidity absorption

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

FAQ

Q1: What is Hostaform XT 20 and what is it used for?
A: Hostaform XT 20 is a highly impact modified acetal copolymer (POM-C) for very demanding applications. It provides exceptional impact strength and flexibility over standard impact modified acetal grades. With Charpy notched impact strength of 100 kJ/m² at 23°C – the highest in the Hostaform portfolio – it delivers unparalleled toughness. It is widely used in automotive interior components (door impact absorbers, seat belt components, knee bolsters), industrial machinery, electrical & electronics, consumer goods, power tools, and extrusion/blow molding applications including technical pipes and hoses.

Q2: What does “XT 20” mean in the grade name?
A: XT indicates eXtreme Toughness – the highest impact modified grade in the Hostaform portfolio. 20 is the specific grade designation within the XT series. The grade is identified as POM-HI (High Impact) according to ISO 1043-1.

Q3: What makes this grade different from standard impact modified POM grades?
A: Hostaform XT 20 provides exceptional impact strength and flexibility over standard impact modified acetal grades. With Charpy notched impact strength of 100 kJ/m² at 23°C – compared to typical impact modified grades at 10-15 kJ/m² – it is the highest impact grade in the Hostaform portfolio. It also features the lowest MVR (1 cm³/10min) for maximum molecular weight and toughness.

Q4: What are the key mechanical properties?
A: Tensile modulus 1200 MPa, tensile stress at yield 35 MPa, tensile strain at yield 25%, flexural modulus 1100 MPa, Charpy notched impact strength 100 kJ/m² (23°C) / 15 kJ/m² (-30°C), Izod notched impact strength 85 kJ/m² (23°C) / 14 kJ/m² (-40°C), melting temperature 165-166°C, and heat deflection temperature 124°C at 0.45 MPa.

Q5: What is the MVR of this material?
A: Melt‑volume‑flow‑rate equals 1 cm³/10min measured under 190°C / 2.16 kg test condition – the lowest in the Hostaform series.

Q6: Is this material suitable for extrusion and blow molding?
A: Yes. Hostaform XT 20 is suitable for injection molding, profile extrusion, and blow molding. The extrudable grade opens new areas of application including technical pipes and hoses.

Q7: Is drying required before processing?
A: Drying is not normally required. However, drying is suggested especially if material has come in contact with moisture through storage, handling or regrind use. Dry to prevent splay and odor problems. Recommended drying: 100°C for 3-4 hours.

Q8: What are recommended processing‑temperature windows?
A: Optimum melt temperature: 195°C; Melt temperature range: 180-210°C. Optimum mold temperature: 70°C; Mold temperature range: 60-80°C. Zone 1 (rear) temperature: 170-180°C. Do not heat over 205°C (400°F) to avoid burning and discoloring.

Q9: What is the density of this material?
A: The density is 1330 kg/m³.

Q10: What is the mold shrinkage of this material?
A: Molding shrinkage is 1.4% parallel and 1.2% normal (ISO 294-4, 2577).

Q11: What regions is this material available in?
A: Hostaform XT 20 is available in North America, Europe, Asia Pacific, South and Central America, and Near East/Africa.

Q12: 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.

Q13: What are limitations?
A: POM‑C does not resist strong mineral acids, powerful oxidizing agents, or continuous exposure to hot water >80°C. This grade has a lower heat deflection temperature (64°C at 1.8 MPa) compared to standard POM grades due to the impact modification. Consult our technical team for chemical‑compatibility data for your exact working environment.

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Sample Policy:

• Samples are for laboratory validation tests only, not for 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 XT 20. 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 XT 20 as definitive specification.