PEI Board

PEI sheet is an, translucent, amorphous high-performance engineering plastic, renowned for its outstanding heat resistance, excellent electrical, and inherent high flame retardancy. It is often used as a substitute for metals, particularly in the electronics, electrical, and aerospace industries where a balance of strength, heat resistance, and dimensional precision is required. What is PSU sheetPEI (Poly) is an-performance polymer, most notably marketed under the brand name Ultem® by in the US. PEI profiles made from this resin through extrusion processes, combining high strength and high flowability, making them suitable for manufacturing precision components with complex shapes. ✨ Core Performance Advantages 🔥 Exceptional High-Temperature Resistance: This is PEI’s key. Its glass transition temperature is as high as 215° allowing long-term use at 170°C. deflection temperature 198-208°C short-term resistance reaching over 200°C. 🛡️ In Flame Retardancy: Without requiring flame retardant additives, it achieves the highest UL94 V-0 rating, low smoke emission and an oxygen index of 46%-47%, difficult to burn in air. This property makes it widely applicable in demanding environments such as aircraft interiors. 🔌ior Electrical Insulation**: It maintains stable and extremely low dielectric loss across a wide range of temperatures, making it an ideal insulating material for the electronics and electrical industries. ⚙Excellent Mechanical It exhibits high strength, rigidity, and good creep resistance. The pure resin’s tensile strength can reach 110-150 MPa. It unique torsional strength, a rare feature among thermoplastics. 🧪 Chemical and Hydrolysis Resistance**: It resists most hydrocarbons, alcohols, and acids and has outstanding hydrolysisafter 10,000 hours in boiling water, its tensile strength retention remains above 85%. This property allows it to withstand steam medical applications.