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45% Glass Fiber PA66 — Examid® PA66 GF45 Y
Description
Examid® PA66 GF45 Y is a polyamide 66 with 45% glass fiber: the sweet spot between GF30 and GF50. Tensile strength of 230 MPa, flexural modulus of 13,200 MPa, while Izod notched impact of 16 kJ/m² is noticeably higher than typical GF50 grades (10–13 kJ/m²).
A separate trump card is the predictable low shrinkage of 0.18% in flow and good flow (MFR of 28 g/10 min at 275 °C, 5 kg): stable filling and tight tolerances on medium and large parts. Water absorption of 0.31% is moderate for PA66 GF.
HDT of 250 °C at 1.80 MPa and a 260 °C melting point mean confident 120–150 °C service. The grade covers the range between Ultramid® A3WG7 and A3WG10 with an impact-strength advantage. Processing: melt 285–300 °C, mold 80–100 °C.
FAQ
Why GF45 when GF30 and GF50 exist?
GF45 delivers near-GF50 stiffness (13,200 MPa) with impact strength above both (16 kJ/m²) and better flow — optimal for loaded parts under vibration.
How precise can molding be?
Flow shrinkage of 0.18% is precision-compound territory; IT8–IT9 tolerances are achievable with a stable process.
Which Ultramid® does it match?
Covers the range between A3WG7 (GF35) and A3WG10 (GF50) with a single stock position.