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Taiyi Polymer twin-screw extrusion production line

PPA Grade Selection

Glass Fiber Reinforced PPA Compounds

Compare three PLATFORM® PPA grades from GF30 to GF50 for high-temperature, dimensional and load-bearing molded-part screening.

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PPA GF Compounds

GF30–GF50 across thermal response, stiffness, and dimensions
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Grade directory

PPA glass-fiber grades

The listed grades are ordered by glass-fiber content. Compare published values, then open the grade record or request its full TDS.

3 listed grades
Full parameters & test methods

Scroll sideways to compare all properties →

Grades ordered by glass-fiber content
Grade / TDSGlass fiberTensile stressFlexural strengthFlexural modulusNotched impactHDT (1.8 MPa)Water absorption
EAG630HTDS
30%210 MPa300 MPa10100 MPa11 kJ/m²275 °C0.5 %
SPUN-4500TDS
45%268 MPa360 MPa12500 MPa15 kJ/m²260 °C0.5 %
EAG650HTDS
50%295 MPa420 MPa16400 MPa15 kJ/m²280 °C0.3 %
01

PPA · Glass fiber 30%

EAG630H

View grade data
Density
1.45
Tensile stress
210 MPa
HDT (1.8 MPa)
275 °C
Flammability
HB
02

PPA · Glass fiber 45%

SPUN-4500

View grade data
Density
1.5
Tensile stress
268 MPa
HDT (1.8 MPa)
260 °C
Flammability
Not published
03

PPA · Glass fiber 50%

EAG650H

View grade data
Density
1.65
Tensile stress
295 MPa
HDT (1.8 MPa)
280 °C
Flammability
HB

Comparison basis: GF content ISO 1172; tensile stress ISO 527; flexural properties ISO 178; notched Charpy impact at 23 °C ISO 179/1eA; HDT at 1.8 MPa ISO 75; water absorption at 23 °C and 50% RH ISO 62. These are typical web reference values. The catalog does not specify the dry or conditioned state of the mechanical data; confirm it in the grade-specific TDS before final selection.

Engineering Trade-offs

Reinforcement changes more than stiffness

Use GF content to narrow the PPA range, then evaluate the complete molded system. Higher listed reinforcement does not automatically produce the better part.

Glass-fiber reinforcement can support

PPA glass-fiber grades are screened where the part needs a high-temperature structural balance. The percentage alone does not establish suitability.

  • Higher stiffness and load response
  • Higher tensile and flexural strength
  • High heat-deflection screening values
  • Dimensional control under load
  • A starting point for hot structural parts

The same screening must still review

Temperature exposure, media, geometry, molding history and fiber orientation can change the molded and assembled result. Validate the actual duty cycle and part.

  • Thermal exposure, duration and load
  • Moisture state and environmental media
  • Fiber orientation and anisotropy
  • Directional shrinkage and warpage
  • Weld lines, gates and local stress
  • Assembly constraints and functional evidence

Application Context

Connect the grade to the part architecture

Use the listed data to screen a structural PPA option, then match temperature, load, environment and dimensions to the actual part before molding trials.

High-temperature structuresAutomotive structural and functional partsDefine heat exposure, load duration, medium contact, assembly restraint and validation requirements before selecting a grade.Electrical and electronic partsThermally demanding housings and supportsReview heat, mechanical retention, dimensions, electrical requirements and the exact document basis with the molded geometry.Precision molded structuresIndustrial housings and bracketsConnect the load path, fastening geometry, temperature, fiber orientation and dimensional targets to the PPA screening range.

Before Final Selection

Validate moisture, molding and the actual part

PPA GF data can narrow an initial range, but it does not replace part-level thermal, dimensional and assembly validation. Keep the test basis, material state and processing history visible throughout the decision.

  1. 01

    Define the duty cycle and thermal exposure

    Record temperature, duration, loading, cycling and environmental media. HDT is a screening value, not a universal continuous-use temperature.

  2. 02

    Confirm the test basis and material state

    Check the grade-specific TDS before comparing critical values. Do not treat typical web data as a complete approval basis.

  3. 03

    Control drying and melt handling

    Set the grade-specific drying and processing window before interpreting a molding trial, including moisture and residence-time control.

  4. 04

    Map fiber orientation to the load path

    Review gate position, flow direction, weld lines, ribs and inserts against the critical structural direction and local stress.

  5. 05

    Measure dimensions and warpage on the part

    Use the intended mold and conditioning sequence. Published shrinkage ranges guide screening but cannot replace measurements on the actual geometry.

  6. 06

    Validate the assembled function

    Confirm thermal, mechanical, environmental, document and repeatability requirements before production approval.

Taiyi Polymer tensile-test specimen clamped in laboratory testing equipment
In-house tensile-test specimen setup. Confirm the grade-specific test basis and moisture state before final selection.

Project Inquiry

Move from PPA GF screening to a molding decision

Share the part, current material, load, temperature, moisture state, mold stage, target properties and document requirements. Taiyi Polymer can help narrow the listed grades for project evaluation.

01Part & operating conditions

02Grade data & documents

03Molded-part validation

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