Material
PET
PET (polyethylene terephthalate) is a versatile thermoplastic used in packaging, precision mechanical components, and industrial products. Its strength, dimensional stability, chemical resistance, and processability make it suitable for injection molding, extrusion, thermoforming, and machining applications.
Material overview
PET is a polyester thermoplastic available in amorphous, semi-crystalline, and modified formulations. Its properties depend on crystallinity, reinforcement, processing conditions, and intended application.
Common variants include bottle-grade PET, engineering-grade PET, glass-filled PET, and PETG, a glycol-modified polyester with different processing and performance characteristics.
Manufacturing processes include injection molding, extrusion, thermoforming, blow molding, and CNC machining of suitable engineering-grade stock.
Typical applications include packaging containers, precision mechanical components, electrical housings, rollers, guides, and industrial equipment parts.
Design considerations include moisture control before melt processing, crystallization, thermal expansion, mechanical loading, and operating temperature. Material selection should distinguish packaging-grade formulations from engineering grades intended for mechanical service.
Buyers should specify the exact polymer grade, reinforcement content, dimensions, tolerances, production quantity, and required mechanical or regulatory properties.
Inspection may include dimensional measurement, material verification, mechanical testing, and application-specific compliance documentation.
Metraxio supports PET manufacturing RFQs with structured material, process, and quality requirements.