PBT (Polybutylene Terephthalate) is the engineering polyester of choice where dimensional precision, electrical insulation and moisture resistance matter most. Unlike polyamides, PBT absorbs very little water, so parts hold their dimensions and electrical properties in humid environments.
Electrical connectors, switchgear and relay housings, automotive electrical and lighting components, appliance parts requiring precision and electrical insulation, and industrial components exposed to moisture.
| Material | PBT (Polybutylene Terephthalate, PB) |
| Series | JYOTI POLYTECH™ (Virgin) | JYOTI HYTECH™ (Hybrid) | JYOTI ECOTECH™ (Recycled) |
| Filler Options | Unfilled | Glass Fiber 20% | Mineral filled |
| Colours | Natural, Black and custom colors |
| Special Variants | Flame-retardant (halogenated and halogen-free), UV-stabilised, heat-resistant, impact-modified, hydrolysis-resistant |
| Manufacturing | Compounded in-house at the Jyoti World Polymer Compounding Unit on co-rotating twin-screw extruders; installed capacity of 6,000 tonnes per year |
| Quality & Testing | Every batch validated in-house: melt flow index, mechanical properties (UTM), heat deflection temperature (HDT), Izod impact, colour spectrophotometry and visual inspection on ASTM/ISO test specimens |
Looking for a tailor-made compound? Share your application requirements and our team will recommend or develop the right grade.