🧩 PES+GF30 – Glass Fiber Reinforced Polyethersulfone (30%)

(A high-performance engineering polymer combining PES matrix with 30% glass fiber for exceptional rigidity, thermal resistance, and dimensional stability. Used in applications requiring durability up to 200 °C.)

🔹 What is PES+GF30

PES+GF30 belongs to the aromatic polymer family with ether and sulfone linkages. At ReplastMD, we treat it as the ultimate “thermal engineer” of plastics. The 30% glass fiber reinforcement significantly increases its elastic modulus and creep resistance without compromising its excellent electrical insulation. It is the preferred material for electrical housings, hydraulic parts, and automotive components exposed to constant heat.

🔧 Composition & Properties

• Polymer Base: Polyethersulfone (PES) ~70%.
• Reinforcement: Glass Fiber (GF) ~30%.
• Density: ~ 1.55 – 1.65 g/cm³.
• Operating Range: Constant use up to +200 °C.
• Chemical Resistance: Outstanding (hot water, steam, aggressive fluids).
• Visuals: Rigid, smooth, dense; light beige, grey, or technical black.

🚗 Where it is used in the automotive industry

Component	Example parts	Observations
Electrical Housings	VW, Toyota, Renault	Thermal stability + superior insulation
Valves / Pump Covers	BMW, Peugeot	Resistance to hot water and high pressure
EGR / Exhaust Zones	Ford, Mercedes	High rigidity and thermal shock resistance
Rigid Technical Caps	Dacia, Hyundai	Maintains shape and color under extreme heat

🔧 Welding and Bonding Methods

Method	Optimal Temp	Observations
Hot Air	330 – 350 °C	Controlled welding without discoloration
Heat Plate (Mirror)	✅ Recommended	Smooth and uniform bonding
Chemical Bonding	⚠️ Restricted	Requires sulfone-specific primers (Loctite® 770 + 406)

💡 ReplastMD Recommendation: Weld at ~340 °C using digital temperature control or teflon-coated heating plates. PES+GF30 is perfect for housings, connectors, and technical valves where structural stiffness and total thermal stability are required.