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PPO PS ALLOY
PPO PS ALLOY
product details
The Original Engineering Hybrid — Heat Resistance and Stability That Stand the Test of Time
Material Overview
PPO/PS — better known across the industry as modified PPO or mPPO — is one of the foundational engineering thermoplastic alloys, developed half a century ago and still indispensable today. By blending the heat resistance of polyphenylene oxide with the processability and economy of polystyrene, this alloy delivers an unusual property profile.
High heat deflection temperature, exceptionally low water absorption, outstanding dimensional stability, and reliable electrical insulation come together at a competitive price point that has made PPO/PS a workhorse for global manufacturers across multiple industries. Renhong’s PPO/PS portfolio includes thermally conductive grades, glass-reinforced structural variants, and scratch-resistant formulations engineered for visible automotive surfaces.
Key Features
🌡️ High Heat Deflection
HDT typically 100–130°C in unreinforced grades, exceeding 150°C with glass fiber reinforcement.
💧 Lowest Water Absorption Among Engineering Plastics
Water uptake below 0.1% — eliminating moisture-induced dimensional drift.
📐 Exceptional Dimensional Stability
Low coefficient of thermal expansion and minimal warpage — suitable for precision-fit assemblies.
⚡ Strong Electrical Insulation
High dielectric strength and stable performance across humidity and temperature.
💎 Scratch-Resistant Surface
Specialty grades achieve pencil hardness up to 2H — suitable for visible automotive trim.
Typical Applications
Automotive Components
- Scratch-resistant thermally conductive brake components
- Under-hood electrical connector blocks
- Wheel covers, decorative hubcaps, cooling fan shrouds
Fluid Handling Equipment
- Pump housings and impellers
- Water meter bodies and filtration manifolds
- Hot-water dispenser internals
Electrical Infrastructure
- Switchgear enclosures and circuit breaker housings
- Industrial motor terminal blocks
- High-precision insulator components
Why Choose Renhong
✓ Long-established compounding heritage with refined formulation control
✓ Thermally conductive grade combines heat resistance with active heat dissipation
✓ Glass-fiber-reinforced grade extends HDT above 150°C
✓ Scratch-resistant variant achieves 2H pencil hardness for visible trim
✓ Halogen-free flame retardant grades meet UL 94 V-0 at 1.5 mm
The information provided on this page reflects typical performance characteristics of Renhong’s polymer alloy products under standard testing conditions. Actual material behavior in finished parts may vary depending on processing parameters, part geometry, additive packages, and end-use environments. Customers are encouraged to validate material suitability through application-specific testing and to consult Renhong’s technical team for grade selection, regulatory compliance documentation, or production-ready data sheets. All trademarks and product names referenced are the property of their respective owners.