PEEK Pellets 30% Glass Fiber Reinforced | High Electrical Insulation
VANTPOLY 1800GF30 is a premium 30% short glass-fiber reinforced PEEK compound engineered for high-temperature, high-pressure, and high-load structural insulation.
While carbon-fiber-reinforced PEEK is electrically conductive, GF30 PEEK retains excellent dielectric insulation and RF/wave transparency while dramatically boosting flexural strength, dimensional stability, and creep resistance compared to unfilled PEEK resin.
Description
GF30 vs. CF30 vs. Virgin PEEK: Choosing the Right Grade
| Property / Feature | Virgin PEEK (Unfilled) | 30% Glass Fiber PEEK (GF30) | 30% Carbon Fiber PEEK (CF30) |
| Electrical Insulation | High Insulator | High Insulator (Dielectric) | Conductive / Anti-Static |
| RF / Wave Transparency | Excellent | Excellent | Poor (Blocks signals) |
| Mechanical Modulus & Strength | Standard | High (+70% vs Virgin) | Very High |
| Thermal Insulation (CLTE) | Standard | Low Expansion & Low Conductivity | High Dissipation |
| Primary Advantage | High Toughness & Impact | Structural Strength + Insulation | Max Stiffness + Wear Resistance |
Key Technical Advantages
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High Mechanical Rigidity & Low Creep: 30% glass fiber reinforcement allows parts to endure continuous high static mechanical loads under elevated temperatures without deformation.
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Superior Electrical Insulation & Wave Transparency: Maintains a high dielectric strength and radar/RF wave transmittability, making it ideal for high-frequency electronics and radomes.
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Exceptional Thermal & Dimensional Stability: Features a remarkably low Coefficient of Linear Thermal Expansion (CLTE) and Heat Deflection Temperature (HDT) up to 316°C.
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Medical & Industrial Sterilization Resistance: Fully compatible with steam autoclaving, ethanol cleaning, and Gamma-ray sterilization.
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Tight Tolerance Precision Machining: Suitable for secondary turning, milling, and grinding to achieve tight dimensional tolerances.
Target Industrial Applications
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Electronics & Semiconductor Processing: High-voltage connectors, switches, cable sleeves, IC test sockets, and insulating shields for cleanroom wafer equipment.
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Mechanical & Fluid Components: Precision bearing cages/retainers, support rings, floating seal rings, and high-pressure valve seats.
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RF & Sensor Housing: Wave-transparent sensor covers, radomes, and high-frequency communication enclosures.
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Specialty Consumer Engineering: High-temperature vape/e-cigarette atomizer housings and thermal barrier components.
Q: When should I choose Glass Fiber PEEK (GF30) instead of Carbon Fiber PEEK (CF30)?
A: Choose GF30 PEEK when your application requires electrical insulation, RF/wave transparency, or thermal barrier properties along with high structural strength. CF30 PEEK is electrically conductive and blocks RF signals, making GF30 the required choice for connectors, insulators, and sensor housings.
Q: Is GF30 PEEK suitable for CNC machining?
A: Yes. GF30 PEEK stock shapes (molded or extruded) offer exceptional dimensional stability, allowing precision turning, milling, and grinding to extremely tight tolerances without warpage.
Request a Quote & Technical Data Sheet
Looking for a reliable supplier of 30% Glass Fiber PEEK granules? Contact our engineering team today to request a technical datasheet (TDS), MSDS, or a custom quote for your production volume.
Material overview
Understanding PEEK (Polyether Ether Ketone)
Why engineers use it
- Strong balance of heat, chemical and mechanical performance.
- Can be molded, extruded, machined or printed in suitable grades and equipment.
- Good fatigue and wear potential for demanding moving or loaded parts.
- Available in unfilled, glass-fiber, carbon-fiber and wear-modified grades.
- Suitable for precision components where long-term reliability justifies a specialty polymer.
Limits to consider
- High processing temperature requires capable equipment and controlled drying.
- Crystallinity, cooling and annealing can affect dimensions and performance.
- Reinforcement improves some properties but may reduce ductility or change machining behavior.
- Not every chemical, wear or medical application is covered by a standard industrial grade.
- PEEK can be unnecessary over-specification where PPS, PEI or another polymer meets the duty.
Grades and product forms
Unfilled PEEK provides the broad base-property balance. Glass-fiber grades generally target stiffness and dimensional control; carbon-fiber grades may add stiffness, strength and conductivity; bearing grades use fillers such as carbon, graphite or PTFE to tune friction and wear. Film, filament, powder, pellets and stock shapes each require different processing and purchasing information.
Performance points to review
| Evaluation area | Why it matters | Information to provide |
|---|---|---|
| Temperature behavior | Useful performance under elevated or changing temperature | Continuous and peak temperature, cycle length and time at load |
| Mechanical response | Strength and stiffness must match the real part geometry | Load direction, stress level, impact and fatigue expectations |
| Environmental resistance | Fluids, cleaning agents and atmosphere can change service life | Chemical name, concentration, temperature and exposure time |
| Dimensional control | Tight-tolerance parts depend on both material and processing | Finished dimensions, tolerances and assembly conditions |
| Electrical or insulation needs | Electrical requirements may influence grade and thickness | Voltage, dielectric, conductivity or insulation target |
These are engineering discussion points, not guaranteed property values. Final acceptance criteria should be agreed for the selected grade, process and order.
Typical application directions
These examples show where the material may be evaluated. They do not replace a suitability review for the finished component.
Preparing a pellet or granule project
State whether the resin will be injection molded, compression molded, extruded, compounded or used in process development. Include machine capability, part thickness, mold concept, drying and handling plan, color, filler or additive needs, and the property the finished part must retain. For an unfamiliar resin, a controlled trial lot is more useful than moving directly to production volume.
Where the application is critical, define what a successful trial looks like before material is ordered: dimensions after processing, visual condition, mechanical response, assembly fit or another measurable result.
When another material may be better
PPS, PEI, PSU/PPSU or a conventional engineering plastic may be more economical when temperature, chemical and mechanical requirements are moderate. PEEK is justified when several demanding requirements occur together or when service life and reliability outweigh raw-material cost.
We recommend sharing the current material and the reason it is being reconsidered. Cost, processability, supply form and inspection burden belong in the decision alongside technical performance.
Information needed for an accurate quotation
A useful RFQ reduces follow-up questions and helps us distinguish between a material request and a finished-part requirement.
| Product form | Pellets or granules; natural, black or another required color |
|---|---|
| Grade direction | Unfilled, reinforced, modified or application-specific requirement |
| Quantity | Trial quantity, first order and estimated annual demand |
| Application | Part function and current material, if any |
| Operating temperature | Continuous range, peak temperature and cycle duration |
| Environment | Chemicals, gases, moisture, pressure, vacuum or outdoor exposure |
| Mechanical duty | Load, speed, impact, wear and mating components |
| Documentation | Drawing revision, inspection, traceability or compliance needs |
| Conversion process | Molding, extrusion, compounding, sintering or development work |
| Packaging | Trial pack, production packaging and moisture-control expectations |
Frequently asked questions
Can I request a sample or trial quantity?
Trial quantities can be discussed according to product form and availability. Tell us what you need to prove during the trial, the intended process and the expected production quantity if the test succeeds.
Do you provide a data sheet or material documentation?
Available documentation depends on the selected material and supply route. List the documents required by engineering, purchasing or quality when you inquire so they can be checked before quotation.
Can the grade be selected from a product name alone?
No. Similar product names can cover different grades, colors, fillers and processes. Selection should be based on the finished application, environment and required property balance.
Can you supply custom dimensions or finished parts?
Custom sizes, blanks or finished parts can be reviewed where appropriate. A drawing with tolerances, quantity and material requirement is the best basis for quotation.
How should we evaluate an alternative to our current material?
Share the current grade, the part’s service conditions and the reason for changing it. A useful comparison looks at failure mode, processing, life, inspection and total project cost—not only a single property value.
What determines lead time?
Lead time depends on product form, grade, size, quantity, documentation, machining and current availability. Confirm the required delivery date and destination with the RFQ rather than assuming a standard schedule.
Send the drawing, application and quantity. We will use the project details to prepare a practical material and supply discussion.
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