Color-Coded PPSU/PSU Rods & Sheets
Non-Leaching Pigments | Steam-Stable | FDA & ISO 10993 Compliant
Supplied as fully annealed machining stock, our Color-Coded PPSU/PSU Rods & Sheets (featuring Custom Industrial Yellow Y159) are engineered for surgical trial sizing, fluid line identification, and OEM brand differentiation. Compounded with non-migratory FDA pigments, our colored stock shapes withstand 1,000+ autoclave steam cycles (134°C) without dye leaching, color fading, or dimensional drift.
Send your target rod diameter, plate thickness, or color code below for a prompt 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
Engineering Brief: Why Color-Coded Sulfone Stock?
In surgical instrument trays and commercial food processing lines, visual component identification is critical. Medical trial implants use color-coded handles to represent different anatomical sizes (e.g., Yellow for Size A, Blue for Size B), while food manifolds use distinct colored rods to prevent fluid line cross-contamination.
However, standard colored plastics often bleed dyes or embrittle during high-temperature steam sterilization. Our colored PPSU/PSU stock shapes incorporate inert, FDA-compliant inorganic pigments compounded directly into high-purity PPSU and PSU resins. This ensures that custom colors—such as Industrial Yellow (Y159), Royal Blue (BB09/DB0099), and Medical Green (GR350)—retain their vibrant hue and sub-micron dimensional stability through repeated 134°C steam autoclaving and harsh chemical sanitation.
Thin Rod Straightness & CNC Lathe Performance
Extruded slender rods (as shown in the image) are particularly sensitive to cooling stress, which can cause whipping or bowing during high-speed CNC turning.
Every production batch undergoes a 72-hour thermal stress-relief cycle. This guarantees true rod straightness and uniform solid core density, allowing machinists to turn slender trial handles, threaded pins, and valve stems on Swiss lathes without center runout or axial cracking.
Material Boundaries (When NOT to Specify)
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⚠️ Polar Organic Solvent Restriction: Amorphous sulfone resins (PPSU and PSU) are susceptible to Environmental Stress Cracking (ESC) when exposed to polar organic solvents such as Acetone, MEK, Ethyl Acetate, or Toluene. (Select crystalline PPS or PEEK for ketone/ester exposure).
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⚠️ Continuous Heat Ceiling: Reliable up to 180°C (PPSU) and 160°C (PSU) continuous. Upgrade to PEEK for continuous mechanical loads above 200°C.
Stock Parameters & Quote Checklist
Please provide:
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Material Option & Form: PPSU or PSU | Rod Diameter (mm) or Sheet Thickness × W × L (mm).
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Color Code: Custom Industrial Yellow Y159 (shown in image), Royal Blue BB09/DB0099, Medical Green GR350, Solid Black BL001, or Natural N000.
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Compliance Needs: FDA Food Contact / ISO 10993 Biocompatibility.
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Quantity: Number of rods, sheets, or cut pieces.
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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