PPO PPE-PA
Matrix
also Noryl
PPE-PA = pPE+PA alloy
Semi-crystalline PPE/polyamide alloy for online-painted automotive fenders, e-mobility and fuel-contact parts: solvent and heat resistance far above PPE/PS, but higher moisture uptake.
Values for the PPE-PA condition
Other PPO grades and fills
PPO is listed in 12 conditions; see the grade overview at PPO.
Compare all 12 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
Structural foam | Foam-molded thick-wall housings and enclosures where stiffness-per-weight and low tooling pressure matter more than surface finish. | 34 | 34 | 12 | 72 Shore D |
PPE+PP alloy | Low-density PPE/polypropylene alloy with hydrolytic and chemical resistance for EV battery packs, connectors and photovoltaic hardware. | 42 | 42 | 30 | 72 Shore D |
Impact modified / high impact | Rubber-toughened blend for snap-fits, thin walls and cold-impact duty where notch sensitivity must be minimised. | 47 | 47 | 65 | 74 Shore D |
Mineral / talc filled | Isotropic shrinkage and better surface than glass fiber; used for painted or plated cosmetic parts and low-warpage panels. | 52 | 52 | 8 | 82 Shore D |
Flame retardant, UL 94 V-0 | Choose for enclosures, busbar supports and PV/telecom parts requiring V-0 with retained dielectric performance. | 55 | 55 | 35 | 79 Shore D |
UNFDefault Unfilled / natural | General-purpose choice: best toughness/electrical balance and easiest molding; use where 100 °C service and moderate stiffness are enough. | 60 | 60 | 50 | 80 Shore D |
ESD / static-dissipative | Carbon-black or carbon-fiber loaded for IC trays, fuel-system and electronics handling parts needing controlled resistivity. | 60 | 60 | 8 | 80 Shore D |
PPE-PAThis page PPE+PA alloy | Semi-crystalline PPE/polyamide alloy for online-painted automotive fenders, e-mobility and fuel-contact parts: solvent and heat resistance far above PPE/PS, but higher moisture uptake. | — | 60 | 30 | — |
High-heat | Higher PPE fraction raises HDT/Tg for hot-water manifolds, lamp and steam-contact parts; harder to mold (higher melt temperature). | — | 66 | 35 | — |
10% glass-fiber reinforced | Small stiffness and HDT boost while keeping reasonable toughness and low warpage. | — | 78 | 6 | — |
20% glass-fiber reinforced | Mid-range structural grade for pump housings and brackets needing higher rigidity and creep resistance. | — | 100 | 4 | — |
30% glass-fiber reinforced | Highest stiffness/HDT standard grade; pick for load-bearing housings and dimensionally critical parts, accepting brittleness and anisotropic shrinkage. | — | 120 | 3 | — |
What is PPO PPE-PA?
PPO PPE-PA is PPO in the PPE-PA condition — semi-crystalline PPE/polyamide alloy for online-painted automotive fenders, e-mobility and fuel-contact parts: solvent and heat resistance far above PPE/PS, but higher moisture uptake. PPO PPE-PA has a yield strength of 60 MPa (8.7 ksi) and a tensile strength of 60 MPa (8.7 ksi) — stronger than 69% of polymer grades. Elongation at break is 30% and the elastic modulus is 2.5 GPa (0.363 Msi). PPO PPE-PA has a density of 1.1 g/cm³ (0.0397 lb/in³), lighter than 66% of polymer grades. Its glass-transition temperature is 150°C (302 °F). UNF is the default condition FabDigit quotes; PPE-PA is available on request or by drawing note.
PPO PPE-PA properties
Typical room-temperature values for PPO PPE-PA; 11 are specific to this condition. Other listed values are PPO reference data and may not represent this condition. Bars are the position among polymer grades.
Physical4
PPO PPE-PA has a density of 1.1 g/cm³ (0.0397 lb/in³), lighter than 66% of polymer grades. Its glass-transition temperature is 150°C (302 °F).
Mechanical17
PPO PPE-PA has a yield strength of 60 MPa (8.7 ksi) and a tensile strength of 60 MPa (8.7 ksi) — stronger than 69% of polymer grades. Elongation at break is 30% and the elastic modulus is 2.5 GPa (0.363 Msi).
Thermal11
PPO PPE-PA is rated for continuous service to 120°C (248 °F). It conducts heat at 0.22 W/m·K (0.127 BTU/hr·ft·°F), better than 60% of polymer grades. Thermal expansion is 60 µm/m·K (33.3 µin/in·°F).
Electrical7
PPO PPE-PA is an electrical insulator with a dielectric strength of 21 kV/mm (533.4 V/mil) and a resistivity of 1×10¹⁴ Ω·m.
Chemical & Environmental3
Corrosion resistance is very good (80/100), worse than 52% of polymer grades. UV resistance is poor.
Sustainability4
Producing a kilogram of PPO PPE-PA takes about 105 MJ of energy and emits 4.6 kg of CO₂ — more than 54% of polymer grades. Typical recycled content is 5%.
Manufacturability8
PPO PPE-PA's machinability is very good (70/100, better than 74% of polymer grades); weldability very good (70/100); formability fair (50/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with PPO PPE-PA
Is PPO easy to machine?
Machines easily with sharp carbide tools, high speed and light feeds; keep parts cool and avoid stress risers — the amorphous matrix is notch-sensitive and can craze if solvent coolants are used (air or water only).
Can PPO be welded?
Excellent ultrasonic, hot-plate, spin and vibration welding; solvent bonding with chlorinated solvents works but leaves residual stress, and annealing is advised before service.
Can PPO be formed, bent or molded?
Inject at 260–310 °C melt / 70–110 °C mold with pre-drying 2–4 h at 100 °C; high melt viscosity needs generous gates and runners, and shrinkage is low and isotropic (0.5–0.7%) in unfilled grades.
What surface finishes work on PPO?
Takes paint, hot stamping, laser marking and electroless plating well after etch; avoid aromatic/ketone-based primers and thinners which cause environmental stress cracking.
PPO chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| poly(2,6-dimethyl-1,4-phenylene ether) (base engineering resin; higher fraction = higher HDT/Tg | 35 – 70 | 50 |
| impact modifier (SBS/SEBS rubber)toughening phase in impact grades | 0 – 12 | 3 |
| glass fiber0 in default unfilled grade; GF10–GF30 typical | 0 – 40 | 0 |
| flame retardant (aryl phosphate, non-halFR/V-0 grades only | 0 – 15 | 0 |
| stabilizers, pigments, processing aids | 0.3 – 3 | 1.5 |
| polystyrene / HIPSmiscible modifier lowering melt viscosity and cost | ≥ 25 (balance) | — |
PPO PPE-PA — frequently asked
What is PPO PPE-PA used for?
PPO PPE-PA is typically used for electrical enclosures, pump housings, plumbing fittings, automotive interior trim and bus bar insulation. In short: very low water absorption; dimensionally stable amorphous blend; weldable and platable.
What is the yield strength of PPO PPE-PA?
PPO PPE-PA has a typical yield strength of 60 MPa (8.7 ksi) and a tensile strength of 60 MPa (8.7 ksi) — stronger than 69% of polymer grades. Strength varies by condition: see the 12 listed tempers.
Is PPO PPE-PA easy to machine?
Yes — machinability is rated very good (70/100, better than 74% of polymer grades). Machines easily with sharp carbide tools, high speed and light feeds; keep parts cool and avoid stress risers — the amorphous matrix is notch-sensitive and can craze if solvent coolants are used (air or water only).
Can PPO PPE-PA be welded?
Yes — weldability is rated very good (70/100). Excellent ultrasonic, hot-plate, spin and vibration welding; solvent bonding with chlorinated solvents works but leaves residual stress, and annealing is advised before service.
What surface finishes work on PPO PPE-PA?
Takes paint, hot stamping, laser marking and electroless plating well after etch; avoid aromatic/ketone-based primers and thinners which cause environmental stress cracking.
Can PPO PPE-PA be formed, bent or molded?
Inject at 260–310 °C melt / 70–110 °C mold with pre-drying 2–4 h at 100 °C; high melt viscosity needs generous gates and runners, and shrinkage is low and isotropic (0.5–0.7%) in unfilled grades.
What is the maximum service temperature of PPO PPE-PA?
PPO PPE-PA is rated for continuous use to about 120°C (248 °F), and briefly to 130°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between PPO UNF and PPO FOAM?
UNF is the default condition — general-purpose choice: best toughness/electrical balance and easiest molding; use where 100 °C service and moderate stiffness are enough. FOAM: foam-molded thick-wall housings and enclosures where stiffness-per-weight and low tooling pressure matter more than surface finish. Yield strength is 60 MPa in UNF versus 34 MPa in FOAM.
Sources
- Noryl resin (PPE/PS) product datasheets and processing guide — SABIC Specialties / Shpp (2023)
- CAMPUS plastics datasheets — PPE+PS, PPE+PA, PPE+PP — CWFG / CAMPUS (2024)
- Engineered Materials Handbook, Vol. 2: Engineering Plastics — ASM International (1988)
- TECANYL / PPE stock shape datasheet — Ensinger (2022)
- ISO 15103 — Plastics: poly(phenylene ether) (PPE) moulding and extrusion materials — ISO (2007)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.