Grades of Torlon®
Torlon® 4203 (Electrical Grade)
Torlon® 4203 extruded PAI offers excellent compressive strength and the highest elongation of the Torlon® grades. Torlon® 4203 also provides electrical insulation and exceptional impact strength. Extruded Torlon® 4203 is typically only available in thin sheets and small diameter rods. This grade is commonly used for electrical connectors and insulators due to its high dielectric strength.
Torlon® 4301 (Bearing Grade)
Torlon® 4301 extruded PAI is primarily used for wear and friction parts. Torlon® 4301 has a very low expansion rate, low coefficient of friction, and exhibits little or no slip-stick in use. Torlon® 4301 has a flexural modulus of 1,000,000 PSI, which is higher than most other advanced engineering plastics. This grade excels in severe service wear applications such as non-lubricated bearings, seals, bearing cages, and reciprocating compressor parts.
Torlon ® 4503 (Compression Molded)
Torlon® 4503 compression molded PAI is the same formulation as 4203, but has been made into stock shapes using a different manufacturing process. The resulting material is similar to 4203, but has slightly different mechanical properties. Compression-molded Torlon® 4503 is typically available only in larger diameter rods in short lengths, thicker sheets, and large tubes in short length.
Torlon® 5530 (Glass-Reinforced Grade)
Torlon® 5530 is a 30% glass reinforced compression molded PAI. Torlon® 5530 is ideal for higher load structural or electronic applications. Torlon® 5530 is similar in composition to Torlon® 5030 PAI (injection molded). This grade is selected for larger shapes and when the greatest degree of dimensional control is required. Applications include burn-in sockets, gears, valve plates, impellers, rotors, terminal strips, and insulators.
Some of the Polyamide-imide parts we machine are: