PPS is a high-performance engineering polymer you specify when failure is not an option. Think of it as the undisputed champion for harsh environments, combining the brute strength of metals with the lightweight, corrosion-resistant design freedom of plastics. Born from a need to withstand extreme heat, aggressive chemicals, and relentless friction, PPS stands as a pinnacle of material engineering. If your component faces hell, send in PPS.
KEY BENEFITS
PPS delivers a knockout punch of properties that outperform standard engineering plastics. Here’s the breakdown of what you gain.
| Benefit | What It Means For You |
|---|---|
| Extreme Heat Resistance | A continuous use temperature of 220°C+ (428°F). It doesn’t just survive the heat; it thrives in it, maintaining structural integrity where others warp and fail. |
| Inherent Fire Retardancy | It’s naturally flame-resistant (UL94 V-0 rated without additives). This means enhanced safety and compliance out-of-the-box, crucial for electrical and automotive applications. |
| Unmatched Chemical Resistance | Laughs in the face of fuels, solvents, acids, and bases. Your parts will endure corrosive environments that would dissolve or embrittle lesser materials. |
| Dimensional Stability | Near-zero moisture absorption and a low, predictable mold shrinkage. This translates to incredibly tight tolerances and parts that stay precise, batch after batch. |
| Formidable Strength & Stiffness | High tensile strength and flexural modulus right out of the gate. It provides a robust, rigid structure that can bear significant mechanical loads. |
| Excellent Creep Resistance | Under sustained load and heat, it barely moves. This long-term dimensional stability is critical for components under constant stress. |
APPLICATIONS
PPS isn’t a benchwarmer. It’s on the field in the most demanding industries, proving its worth every day.
| Industry | Specific Applications |
|---|---|
| Automotive | Engine components (sensors, housings, throttle bodies), ignition systems, transmission parts, and fuel system components. It handles under-the-hood heat and chemicals with ease. |
| Electrical & Electronics | Connectors, bobbins, relay components, IC trays, and SMT components. Its heat resistance, flame retardancy, and dielectric strength make it a star performer. |
| Industrial & Mechanical | Pump housings, impellers, valve seats, and compressor parts. It stands up to aggressive chemicals, high pressures, and abrasive wear. |
| Aerospace & Defense | Components requiring the ultimate in lightweight, high-strength, and flame/smoke/toxicity (FST) compliance for critical systems. |
TECHNICAL SPECIFICATIONS
Here are the cold, hard facts. This is the data that engineers trust.
| Property | Test Method | Value / Range |
|---|---|---|
| Tensile Strength | ASTM D638 | 80 – 90 MPa |
| Flexural Modulus | ASTM D790 | 3,800 – 4,200 MPa |
| Heat Deflection Temp. (HDT) | ASTM D648 @ 1.82 MPa | 260°C (500°F) |
| Continuous Service Temp. | UL 746B | 220°C – 240°C |
| Flame Rating | UL 94 | V-0 (at 0.4mm) |
| CTI (Comparative Tracking Index) | UL 746 | > 250 V |
| Dielectric Strength | ASTM D149 | 17 – 22 kV/mm |
| Mold Shrinkage | – | 0.8 – 1.2 % |
| Water Absorption (24hr) | ASTM D570 | 0.02 % |