Glass Fiber Reinforced POM GF15 – Balanced Stiffness Low Deformation Precision Structural Acetal

Key Attribute	Material Description	Application Value
Balanced Stiffness	15% glass fiber reinforcement improves rigidity while maintaining toughness	Good balance for precision structural parts and functional housings
Low Deformation	Reduced creep and improved dimensional stability vs. unfilled POM	Helps keep alignment and fit stable over long-term use
Mechanical Strength	Higher tensile and flexural strength compared to neat POM	Supports moderate load and better torque retention
Low-Friction Base	POM base provides low friction with good wear resistance	Suitable for guided mechanisms and sliding interfaces
Mass Production Stability	Injection-molding friendly grade with good surface consistency	Reliable yield for multi-cavity production with stable dimensions

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Quick Summary: POM GF15 is a glass fiber reinforced polyoxymethylene containing 15% glass fiber. It provides a controlled increase in stiffness and dimensional stability over standard POM while preserving good processability and impact balance. This grade is ideal for precision structural components where moderate load resistance is required without sacrificing molding stability.

YongJinHong POM GF15 Exists (Engineering Positioning)

Glass Fiber Reinforced POM GF15 is intended for designs where standard POM shows noticeable elastic deflection, but higher glass fiber contents (GF25 / GF30) would introduce unnecessary brittleness, anisotropy, or tooling sensitivity.

Unlike PP GF15, which primarily improves stiffness for lightweight structures, POM GF15 focuses on precision stability, creep control, and dimensional accuracy.

GF15 is chosen when standard POM is “almost enough,” but reliability margins are required.

Material Composition & Reinforcement Strategy

Material Overview

Base Polymer: Polyoxymethylene (POM / Acetal)
Glass Fiber Content: 15%
Reinforcement Type: Short glass fiber
Optional Additives:
- Heat stabilizers
- Impact modifiers
- Processing lubricants
- UV stabilizers
Color Options: Natural, black, customized

This formulation targets precision reinforcement, not structural extremity.

Core Performance Advantages

Engineering Advantages

Moderate Stiffness Increase
Reduces elastic bending and torsional deflection compared with unfilled POM.

Improved Creep Resistance
Better long-term shape retention under continuous mechanical load.

Excellent Dimensional Stability
Very low moisture absorption preserves tight tolerances.

Balanced Toughness
Maintains better impact resistance than higher-GF POM grades.

Chemical Resistance
Resistant to fuels, oils, greases, and industrial cleaning agents.

Manufacturing & Production Advantages

Stable Injection Molding Window
Processing behavior remains close to standard POM.

Lower Anisotropy vs High-GF Grades
More predictable shrinkage and mechanical response.

Reduced Mold Wear
Glass fiber level remains tool-friendly.

Reliable Mass Production
Well-suited for long-term serial manufacturing.

Typical Application Areas

Automotive Components

Structural brackets
Precision mounting components
Interior mechanical supports

Industrial & Mechanical Equipment

Precision frames
Structural housings
Functional supports

Electrical & Precision Assemblies

Structural elements with tight tolerances
Lightly moving or intermittently loaded components

Processing Guidelines (Injection Molding)

Typical Processing Parameters

Melt Temperature: 190–215 °C
Mold Temperature: 80–110 °C
Drying: 80 °C for 2–4 hours
Injection Speed: Medium
Shrinkage: ~1.5–2.0%

Fiber orientation effects are manageable at 15% reinforcement.

OEM / Customization Capabilities

Customization Options

Heat-stabilized grades
Impact-modified formulations
UV-resistant versions
Color matching

OEM Support

Structural performance evaluation
GF15 vs GF25 selection guidance
Prototype sampling
Long-term supply assurance

Typical Technical Data (Reference Values)

Property	Test Standard	Typical Value
Density	ISO 1183	1.43–1.48 g/cm³
Tensile Strength	ISO 527	65–80 MPa
Flexural Strength	ISO 178	95–115 MPa
Flexural Modulus	ISO 178	3,500–4,500 MPa
Notched Izod Impact	ISO 180	4–7 kJ/m²
Heat Deflection Temp.	ISO 75	155–170 °C
Moisture Absorption	—	Very Low

FAQ

Q1: When should POM GF15 be selected instead of standard POM?
When moderate stiffness and improved deformation control are needed without moving to high-GF grades.

Q2: How does POM GF15 differ from POM GF25?
GF15 offers better toughness and processing stability, while GF25 provides higher stiffness.

Q3: Is POM GF15 suitable for moving parts?
Yes, for lightly moving or intermittently loaded components.

Q4: Does 15% glass fiber significantly increase mold wear?
No. Tool wear remains moderate at this reinforcement level.

Q5: Can POM GF15 replace glass fiber reinforced PA?
Yes, in precision applications where moisture stability and dimensional accuracy are critical.

Field Insight: POM GF15 is often the most efficient reinforcement level in the POM family. It delivers a meaningful stiffness upgrade without introducing the brittleness, anisotropy, and processing complexity associated with higher glass fiber contents.