Hostaform UV25Z XAP2 – UV Stabilized Low Emission POM-C

描述

Hostaform UV25Z XAP2 is a UV stabilized, low emission 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 nominal 2.5 melt flow rate grade which has been specially stabilized to prevent discoloration and deterioration of mechanical properties from ultraviolet light exposure. The “XAP2” designation indicates Celanese’s low emission technology, with emissions according to VDA 275 <5 mg/kg for both natural and colored grades.

Hostaform UV25Z XAP2 is available in precolored black or colors. It exhibits improved toughness and is especially designed for automotive interior applications with strict cabin air quality requirements. With regular stock availability, we support both trial orders and large‑volume bulk shipments for automotive, industrial, and consumer applications.

Key Features of Hostaform UV25Z XAP2

• UV Stabilized – Specially stabilized to prevent discoloration and deterioration of mechanical properties from ultraviolet light exposure

• Low Emission Technology – XAP2 low emission technology; emissions according to VDA 275 <5 mg/kg for natural and colored grades

• Improved Toughness – Enhanced impact resistance for demanding automotive applications

• Low Melt Flow / High Molecular Weight – MFR of 2.3 g/10min (190°C/2.16kg)

• High Stiffness – Tensile modulus of 2400 MPa

• Good Strength – Tensile stress at yield of 60 MPa

• Good Ductility – Tensile strain at yield of 10%

• Good Impact Resistance – Charpy notched impact strength of 8 kJ/m² at 23°C

• Good Heat Resistance – Melting temperature of 165°C and heat deflection temperature of 90°C at 1.8 MPa

• Precolored Options – Available in precolored black or colors

• Heavy‑Metal Free – Environmentally friendly formulation

• Contains Release Agent – Facilitates easy demolding during processing

• Global Availability – Available in Africa & Middle East, Asia Pacific, Europe, Latin America, North America

Typical Applications for Hostaform UV25Z XAP2

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 UV25Z XAP2

What makes Hostaform UV25Z XAP2 the preferred material for UV-stabilized and low emission applications? Below are its core practical advantages:

UV Stabilization for Long‑Term Color & Property Retention
Hostaform UV25Z XAP2 has been specially stabilized to prevent discoloration and deterioration of mechanical properties from ultraviolet light exposure. This ensures long-term color stability and mechanical performance in applications exposed to sunlight and UV radiation.

XAP2 Low Emission Technology for Automotive Interiors
The “XAP2” designation indicates Celanese’s proprietary low emission technology, with emissions according to VDA 275 <5 mg/kg for both natural and colored grades. This makes it especially suitable for automotive interior applications with strict cabin air quality requirements.

Low Melt Flow / High Molecular Weight for Superior Properties
With a low melt flow rate of 2.3 g/10min (190°C/2.16kg), Hostaform UV25Z XAP2 offers high molecular weight characteristics that contribute to superior mechanical properties, improved toughness, and excellent durability.

High Stiffness with Good Ductility
With a tensile modulus of 2400 MPa, yield stress of 60 MPa, and yield strain of 10%, this material delivers a balance of stiffness and ductility—maintaining structural integrity while providing the flexibility needed for impact resistance.

Improved Toughness for Demanding Applications
Hostaform UV25Z XAP2 exhibits improved toughness over standard acetal grades, with Charpy notched impact strength of 8 kJ/m² at 23°C, ensuring reliable performance in demanding applications.

Good Heat Resistance
Melting temperature of 165°C and heat deflection temperature of 90°C at 1.8 MPa ensure thermal stability during processing and service.

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

Precolored Options for Design Flexibility
Available in precolored black or colors, eliminating secondary painting operations and reducing production costs.

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 UV25Z XAP2. For more supply‑chain details, visit our company background page .

Typical Properties (ISO Standards)

Typical properties of Hostaform UV25Z XAP2 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 UV25Z XAP2. 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 UV25Z XAP2 TDS from our sales team.

Processing Guidelines (Injection Molding)

Recommended processing parameters for Hostaform UV25Z XAP2:

Critical Processing Warnings for Hostaform UV25Z XAP2:

• Low Melt Flow Processing: With MFR of 2.3 g/10min, Hostaform UV25Z XAP2 is a low flow/high molecular weight grade. Ensure adequate injection pressure and mold temperature to achieve complete filling of complex parts.

• Drying: Drying is generally not required due to low moisture absorption. However, to achieve low emission values, pre‑drying using a recirculating air dryer (100 to 120°C / max. 40 mm layer / 3 to 6 hours) is recommended.

• Low Emission Property: To maintain XAP2 low emission characteristics (VDA 275 <5 mg/kg), avoid contamination and ensure proper processing conditions.

• UV Stabilization Property: The UV stabilization additives are fully dispersed in the base resin; standard processing conditions will not degrade UV performance.

• 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 UV stabilized, impact-modified, and low emission properties.

• Regrind / Recycled Material Notice: We do not recommend adding regrind for this specialty grade. Reprocessing may compromise the UV stability, impact properties, and XAP2 low emission characteristics. If regrind usage is mandatory, keep percentage below 10% and complete pre‑validation testing first.

• Warpage Prevention: It may be necessary to fixture large or complicated parts with varying wall thickness to prevent warpage while cooling to ambient temperature.

• Storage Guidance: Store pellets in cool, dry conditions; keep sealed in original factory packaging whenever possible to maintain low emission characteristics and UV stabilization effectiveness.

Related Products

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

• UV Stabilized POM Grades – View grades with UV stabilization and weathering resistance

• Low Emission POM (XAP2 Series) – Discover low VOC, low odor grades for automotive interior applications

• 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 UV25Z XAP2) 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 UV25Z XAP2.

Key technical standards referenced in this document include:

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

• ISO 1183 – Density measurement

• ISO 527-1/-2 – Tensile properties

• ISO 179/1eA – Charpy notched impact resistance

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

• ISO 1133 – Melt mass-flow rate

• ISO 11357-1/-3 – Melting temperature

• VDA 275 – Automotive interior emission testing

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

FAQ

Q1: What is Hostaform UV25Z XAP2 and what is it used for?
A: Hostaform UV25Z XAP2 is a UV stabilized, low emission POM‑C (Polyoxymethylene Copolymer) injection molding grade. It has been specially stabilized to prevent discoloration and deterioration of mechanical properties from ultraviolet light exposure. The “XAP2” designation indicates Celanese’s low emission technology with VDA 275 <5 mg/kg. It is widely used in automotive interior components, fuel system components, gears, bearings, door locks, electrical & electronics (connectors, switches, housings), household appliances, consumer goods, and medical devices. It is available in precolored black or colors.

Q2: What does “UV25Z XAP2” mean in the grade name?
A: UV indicates UV stabilized grade – specially formulated to prevent discoloration and degradation from UV exposure. 25Z is the specific grade designation (nominal 2.5 melt flow rate). XAP2 denotes Celanese’s proprietary low emission technology for reduced VOC emissions and low odor, with emissions according to VDA 275 <5 mg/kg.

Q3: What are the key mechanical properties of Hostaform UV25Z XAP2?
A: Tensile modulus 2400 MPa, tensile stress at yield 60 MPa, tensile strain at yield 10%, Charpy notched impact strength 8 kJ/m² (23°C), melting temperature 165°C, and heat deflection temperature 90°C at 1.8 MPa.

Q4: What is the MFR of this material?
A: Melt mass-flow rate equals 2.3 g/10min measured under 190°C / 2.16 kg test condition.

Q5: Is this material UV stabilized?
A: Yes. The “UV” designation indicates UV stabilization – the material has been specially stabilized to prevent discoloration and deterioration of mechanical properties from ultraviolet light exposure.

Q6: Is this material suitable for automotive applications?
A: Yes. Hostaform UV25Z XAP2 features low emissions (VDA 275 <5 mg/kg), UV stabilization for long-term color stability, and improved toughness, making it especially suitable for automotive interior applications with strict cabin air quality requirements.

Q7: What colors are available?
A: Hostaform UV25Z XAP2 is available in precolored black or colors.

Q8: Is drying required before processing?
A: Drying is generally not required due to low moisture absorption. However, to achieve low emission values, pre‑drying using a recirculating air dryer (100 to 120°C / max. 40 mm layer / 3 to 6 hours) is recommended.

Q9: What are recommended processing‑temperature windows?
A: Optimum melt temperature: 195°C; Melt temperature range: 180-210°C. Optimum mold temperature: 100°C; Mold temperature range: 80-120°C.

Q10: What is the density of this material?
A: The density is 1400 kg/m³.

Q11: What regions is this material available in?
A: Hostaform UV25Z XAP2 is available in Africa & Middle East, Asia Pacific, Europe, Latin America, and North America.

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. Consult our technical team for chemical‑compatibility data for your exact working environment.

CTA (Call to Action)

Ready to order Hostaform UV25Z XAP2?

To get precise quotation and professional technical support, please share these details:

• Required quantity (kg or tons)

• Destination port or delivery address

• Target application and part brief (automotive interior, UV-exposed components, etc.)

• Color requirements (black or custom color)

• Core performance requirements (UV stability, low emission, toughness, etc.)

• Document requirement (TDS, SDS, VDA 275 emission report, UV stability report, etc.)

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 UV25Z XAP2. 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 UV25Z XAP2 as definitive specification.