Exablend® PPS GF30Y — 30 % Glass-Filled Polyphenylene Sulfide, V-0 Balanced Series

Description

Exablend® PPS GF30Y is a polyphenylene sulfide (PPS) based compound reinforced with 30 % glass fibre. It belongs to the “Y” series — balanced grades with a proven combination of properties at a moderate price. A standard working grade for parts that require high stiffness, V-0 flame resistance and heat resistance without excessive cost.

The semi-crystalline PPS matrix combined with 30 % glass fibre provides a flexural modulus of 10 370 MPa, a flexural strength of 242 MPa, a tensile strength at break of 144 MPa and a UL 94 V-0 flammability rating at 1.5 mm thickness without additional flame retardants. Low linear shrinkage of 0.11 % ensures high dimensional stability.

The chemical resistance of PPS to most solvents, acids and alkalis is retained; any specific environment should be verified taking temperature and contact time into account.

Key properties

• Polyphenylene sulfide reinforced with 30 % glass fibre
• “Y” series — one of the Exablend® PPS technology lines, designed for the standard range of series applications
• Inherent UL 94 V-0 flame resistance at 1.5 mm without halogenated or phosphorus flame retardants — RoHS/REACH compliance out of the box
• High stiffness: flexural modulus 10 370 MPa
• Flexural strength 242 MPa, tensile strength at break 144 MPa
• Notched Izod impact strength 11.3 kJ/m² at 23 °C
• Low linear shrinkage of ~0.2 % in the flow direction and ~0.5 % transverse — stable dimensional reproducibility; for precision parts, correction of shrinkage anisotropy is recommended at the tooling stage
• High chemical resistance to many solvents, fuels, acids and alkalis; any specific environment should be verified

Applications

• Electrical housings, terminals and insulators with UL 94 V-0 requirements; SMD connectors for lead-free reflow soldering up to 260 °C
• Automotive under-hood parts: sensors, pump housings, brackets
• Precision gears, bushings, load-bearing fasteners
• Pump, valve and fitting parts in chemical environments
• Power electronics and switchgear components
• High-precision relay housings

Processing recommendations

Injection molding. Barrel temperature profile: rear zone 290–310 °C, middle zone 300–320 °C, front zone 310–340 °C; melt temperature 300–340 °C. Mold temperature 130–160 °C. Injection pressure 70–130 MPa, holding pressure 40–90 MPa, back pressure 7–15 MPa. Drying before processing: 4–8 hours at 80–100 °C to a residual moisture content of ≤0.2 %.