PPS GF40 Sheets & Plates
We supply high-rigidity PPS GF40 Sheets and Plates (40% glass filled) engineered for continuous heavy static load-bearing under elevated temperatures. Delivering an extreme flexural modulus of 12,000 MPa (12.0 GPa), an HDT exceeding 260°C, UL94 V-0 flame safety, and chemical/disinfectant immunity, this glass-filled stock shape replaces metals in structural brackets, automotive housings, and electronic insulators. Custom thicknesses, sheet dimensions, colors, and filler ratios are fully available upon request. Share your specs for a quick quote.
Product information
Published information supports preliminary product selection. Confirm the exact grade, dimensions, tolerances, documentation and application suitability with the quotation for your order.
Description
PPS GF40 Sheets & Plates represent the premium standard in high-rigidity structural stock shapes for precision CNC machining. By compounding high-purity Polyphenylene Sulfide resin with 40% short glass fibers, this grade increases mechanical flexural modulus by over 200% compared to unfilled PPS, offering smooth surface finishes and exceptional dimensional stability.
Formulated for components enduring continuous heavy static loads at high temperatures, PPS GF40 eliminates creep deformation and thermal distortion. Featuring continuous heat resistance at 200°C–220°C (HDT ＞260℃) and immunity to harsh disinfectants, detergents, and automotive fluids, it is the preferred material for aerospace structural brackets, automotive pump housings, and industrial electrical equipment.
Performance Comparison: PPS GF40 vs. Virgin PPS vs. PEEK GF30
| Performance Metric | Virgin Unfilled PPS Sheet | PPS GF40 Sheet (40% Glass) | PEEK GF30 Sheet |
| Flexural Modulus (Rigidity) | 3,800 MPa (3.8 GPa) | 12,000 MPa (12.0 GPa – Extreme) | 9,500 MPa |
| Heavy Static Load Creep | Moderate Creep Risk | Ultra-Low Creep (Heavy Static Load) | Ultra-Low Creep |
| Heat Deflection Temp (HDT) | 110°C (Unannealed) | >260°C (High Heat Stability) | 315°C |
| Disinfectant & Chemical Immunity | High Resistance | High Resistance (Disinfectant Proof) | Extreme Resistance |
How this product is normally specified
This product is supplied as extruded PPS GF40 boards and pre-cut plates for CNC milling:
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Dimensions: Thickness (10–100 mm), sheet size (610×1220 mm), or cut CNC blanks
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Reinforcement: 40% short glass fiber filled structural grade
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Stress Relief: Multi-stage annealed to eliminate stress warpage during CNC milling
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Customization: Custom sizes, filler percentages, or color-matching upon request
Where this material can fit
Typical applications for PPS GF40 sheets include:
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Electrical & Electronics: High-voltage terminal blocks, transformer bobbins, and electrical enclosures
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Automotive & Transportation: Under-hood structural brackets, water pump housings, and engine proximity parts
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Aerospace & Defense: Structural brackets, radome internal mounts, and high-stiffness interior plates
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Industrial Machinery: High-static load plates, structural insulating barriers, and chemical equipment supports
What to confirm before ordering
To recommend the right PPS GF40 specification, please confirm:
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Target thickness (mm), width/length, and piece quantity
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Customization requirements (custom dimensions, colors, or filler ratios)
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CNC machining operations (confirming deep milling or heavy stock removal)
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Required trial quantity and estimated annual commercial demand
Send us the information you have. We will review technical details before confirming the quotation.
Material overview
Understanding PPS (Polyphenylene Sulfide)
Why engineers use it
- Broad chemical resistance for many industrial fluids and process environments.
- Low moisture uptake and good dimensional stability.
- Useful electrical insulation and inherent flame-resistance characteristics.
- Reinforced grades can provide high stiffness and repeatable molded dimensions.
- Often offers a practical cost/performance position below PEEK.
Limits to consider
- Unfilled PPS can be relatively brittle and design details strongly affect impact performance.
- Glass or mineral reinforcement changes shrinkage, anisotropy and machining behavior.
- Oxidizing media and actual high-temperature chemicals still require compatibility review.
- Weld lines, sharp corners and molding orientation can become structural weak points.
- It should not be selected from chemical-resistance charts alone.
Grades and product forms
PPS is commonly supplied unfilled or reinforced with glass fiber, mineral filler, carbon fiber or combined systems. The filler package changes stiffness, movement, surface finish, conductivity and wear. Pellets suit volume molding, while sheet, rod or finished parts may be preferable for prototypes and lower-volume production.
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.
Fabrication and processing preparation
Share the finished part drawing as well as the requested rod diameter and length. This makes it possible to discuss machining allowance, tolerance, cut length, quantity and whether a closer starting size could reduce waste.
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
PEEK may be preferred when toughness or a broader high-temperature performance margin is required. PPS can be the more practical solution when chemical resistance, stiffness, repeatable molding and cost control are the central requirements.
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 | Raw material, stock shape, semi-finished blank or completed part |
|---|---|
| Dimensions | Nominal size, finished size and tolerances |
| 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 |
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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