PET-GF30 GF30-FR
Reinforced grade
Pick for electrical housings, connectors and breaker parts needing V-0 at 0.8–1.5 mm.
Values for the GF30-FR condition
Other PET-GF30 grades and fills
PET-GF30 is listed in 9 conditions; see the grade overview at PET-GF30.
Compare all 9 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
GF30 + mineral | Pick when flatness and isotropic shrinkage matter more than peak strength (covers, plates). | — | 115 | 2 | 90 Shore D |
impact modified (toughened) | Use where snap-fits, drop loads or notch sensitivity govern, accepting lower stiffness and HDT. | — | 120 | 4 | 87 Shore D |
GF30-FRThis page flame retardant, UL 94 V-0 | Pick for electrical housings, connectors and breaker parts needing V-0 at 0.8–1.5 mm. | — | 130 | 2 | — |
GF30 lubricated | Choose for gears, cams and sliding parts needing low friction with high stiffness. | — | 130 | 2.2 | 88 Shore D |
RPET-GF30 | Cost- and carbon-reduced option for non-critical structural parts; properties vary batch to batch. | — | 130 | 2.2 | 89 Shore D |
GF30 ESD/conductive | Use for electronics handling parts requiring 10^4–10^9 Ω surface resistivity. | — | 140 | 2 | 90 Shore D |
heat stabilized for long-term thermal ageing | Choose for parts held above 120 °C for thousands of hours (lamp holders, under-hood brackets). | — | 148 | 2.4 | 90 Shore D |
UV / weather stabilized (usually black) | Specify for outdoor-exposed structural parts; carbon-black or HALS/UVA packages limit chalking. | — | 148 | 2.4 | 90 Shore D |
GF30Default 30% glass fiber, natural/standard injection grade | Default high-stiffness, high-HDT structural grade for hot-mould injection with fast cycles. | — | 150 | 2.5 | 90 Shore D |
What is PET-GF30 GF30-FR?
PET-GF30 GF30-FR is PET-GF30 in the GF30-FR grade — pick for electrical housings, connectors and breaker parts needing V-0 at 0.8–1.5 mm. PET-GF30 GF30-FR has a tensile strength of 130 MPa (18.9 ksi), stronger than 94% of polymer grades. Elongation at break is 2% and the elastic modulus is 9.5 GPa (1.38 Msi). PET-GF30 GF30-FR has a density of 1.68 g/cm³ (0.0607 lb/in³), heavier than 94% of polymer grades. Its glass-transition temperature is 79°C (174 °F). GF30 is the default condition FabDigit quotes; GF30-FR is available on request or by drawing note.
Advantages
- Stiff — 9.5 GPa (1.38 Msi), better than 94% of polymer grades
- Low, predictable mold shrinkage — 0.3%, better than 90% of polymer grades
- Tough — resists crack growth — 3.5 MPa·√m (3.19 ksi·√in), better than 81% of polymer grades
- Low embodied carbon — 3.2 kg CO₂/kg, better than 81% of polymer grades
- Conducts heat well — 0.29 W/m·K (0.168 BTU/hr·ft·°F), better than 80% of polymer grades
Limitations
- Limited ductility — 2%, worse than 95% of polymer grades
- Heavy — 1.68 g/cm³ (0.0607 lb/in³), worse than 94% of polymer grades
- Hard to polish — 25/100, worse than 90% of polymer grades
- Limited formability — 10/100, worse than 87% of polymer grades
- Difficult to machine — 43/100, worse than 80% of polymer grades
PET-GF30 GF30-FR properties
Typical room-temperature values for PET-GF30 GF30-FR; 11 are specific to this condition. Other listed values are PET-GF30 reference data and may not represent this condition. Bars are the position among polymer grades.
Physical5
PET-GF30 GF30-FR has a density of 1.68 g/cm³ (0.0607 lb/in³), heavier than 94% of polymer grades. Its glass-transition temperature is 79°C (174 °F).
Mechanical15
PET-GF30 GF30-FR has a tensile strength of 130 MPa (18.9 ksi), stronger than 94% of polymer grades. Elongation at break is 2% and the elastic modulus is 9.5 GPa (1.38 Msi).
Thermal11
PET-GF30 GF30-FR is rated for continuous service to 140°C (284 °F). It conducts heat at 0.29 W/m·K (0.168 BTU/hr·ft·°F), better than 80% of polymer grades. Thermal expansion is 25 µm/m·K (13.9 µin/in·°F).
Electrical7
PET-GF30 GF30-FR is an electrical insulator with a dielectric strength of 28 kV/mm (711.2 V/mil) and a resistivity of 1×10¹⁴ Ω·m.
Chemical & Environmental3
Corrosion resistance is very good (72/100), worse than 70% of polymer grades. UV resistance is poor.
Sustainability4
Producing a kilogram of PET-GF30 GF30-FR takes about 80 MJ of energy and emits 3.2 kg of CO₂ — less than 85% of polymer grades. Typical recycled content is 0%.
Manufacturability7
PET-GF30 GF30-FR's machinability is fair (43/100, worse than 80% of polymer grades); weldability poor (30/100); formability not recommended (10/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with PET-GF30 GF30-FR
Is PET-GF30 easy to machine?
Machines cleanly but the glass is abrasive — use sharp carbide or PCD tools, high speed, light feed and air/mist cooling; avoid water contact on hot chips.
Can PET-GF30 be welded?
Not solvent- or hot-plate-friendly; join by ultrasonic, vibration or laser welding with reduced strength across the fiber-poor weld, or use screws/heat-staked inserts.
Can PET-GF30 be formed, bent or molded?
Dry to <0.02 % moisture (150 °C, 4–6 h) to prevent hydrolytic IV loss; mould at 275–290 °C melt with a 130–140 °C hot mould for full crystallization and dimensional stability.
What surface finishes work on PET-GF30?
Paintable and pad-printable after cleaning; gate/weld lines and glass bloom limit gloss, so texture the tool or use black pigmented grades for cosmetic surfaces.
PET-GF30 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 |
|---|---|---|
| glass fiberchopped E-glass, silane sized, 10–13 µm diameter | 28 – 32 | 30 |
| nucleating agent / crystallization promoe.g. sodium ionomer or talc | 0.3 – 2 | 1 |
| coupling agent, chain extender, stabilizprocess and thermal stabilization package | 0.3 – 2.5 | 1 |
| poly(ethylene terephthalate) matrixbottle/fiber-grade IV 0.60–0.80 dL/g resin, nucleated for fast crystallization | ≥ 62 (balance) | — |
PET-GF30 GF30-FR — frequently asked
What is PET-GF30 GF30-FR used for?
PET-GF30 GF30-FR is typically used for electrical/electronic connectors, automotive structural clips, pump and motor housings and industrial gears. In short: higher-heat reinforced polyester; stiffer than PBT-GF30; needs hot-mold processing.
What is the tensile strength of PET-GF30 GF30-FR?
PET-GF30 GF30-FR has a typical tensile strength of 130 MPa (18.9 ksi) — stronger than 94% of polymer grades. Strength varies by condition: see the 9 listed tempers.
Is PET-GF30 GF30-FR easy to machine?
Not especially — machinability is rated fair (43/100, worse than 80% of polymer grades). Machines cleanly but the glass is abrasive — use sharp carbide or PCD tools, high speed, light feed and air/mist cooling; avoid water contact on hot chips.
Can PET-GF30 GF30-FR be welded?
Not readily — weldability is rated poor (30/100). Not solvent- or hot-plate-friendly; join by ultrasonic, vibration or laser welding with reduced strength across the fiber-poor weld, or use screws/heat-staked inserts.
What surface finishes work on PET-GF30 GF30-FR?
Paintable and pad-printable after cleaning; gate/weld lines and glass bloom limit gloss, so texture the tool or use black pigmented grades for cosmetic surfaces.
Can PET-GF30 GF30-FR be formed, bent or molded?
Dry to <0.02 % moisture (150 °C, 4–6 h) to prevent hydrolytic IV loss; mould at 275–290 °C melt with a 130–140 °C hot mould for full crystallization and dimensional stability.
What is the maximum service temperature of PET-GF30 GF30-FR?
PET-GF30 GF30-FR is rated for continuous use to about 140°C (284 °F), and briefly to 220°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Sources
- ISO 20028 / ASTM D5927 — Thermoplastic polyester (PET, PBT) moulding and extrusion materials — ISO / ASTM (2018)
- CAMPUS plastics database — PET-GF30 datasheets (ISO 10350-1 single-point data) — CAMPUS consortium (2024)
- Rynite 530 / 530 NC010 30% glass reinforced PET product data — DuPont / Celanese (2023)
- Technyl / Ecotech PET-GF compound technical data — DOMO Chemicals (2023)
- Engineered Materials Handbook Vol. 2 — Engineering Plastics — ASM International (1988)
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.