Chemical Resistant Heat Stabilized PBT Material for Industrial
Relay Sockets and Switches
Typical properties of Modified PBT
| Test Item | Unit | |
Chemical Properties | Intrinsic Viscosity | dl/g | 1.300±0.030 |
| Carboxyl End Groups | mol/t | ≤27 |
| Melting Point | °C | ≥225 |
| Value L | - | ≥90 |
| Value b | - | ≤6.5 |
Physical Properties | Density | g/cm3 | 1.30-1.32 |
| Melt Flow Vate | g/10min | 7-12 |
| Tensile Strength | Mpa | 50-60 |
| Elongation | % | ≥250 |
| Notched Impact Strength | J/m | ≥45 |
| Dielectric Strength | KV/mm | ≥20 |
Production Description
Specialty PBT material offers balanced mechanical properties,
thermal dimensional stability, and optical clarity retention.
UL-approved and environmentally compliant, it serves advanced
lighting solutions, heat-conductive assemblies, and precision
electrical applications.
The application fields are similar to thermal conductive PA, and it
is mainly used in large-sized lighting fixtures with high toughness
requirements
Company Profile
HMT International is a leading global manufacturer and exporter
specializing in modified plastics, operating under the brand
Chongyuan. Established with a commitment to innovation and
sustainability, we engineer high-performance thermoplastic
compounds tailored to meet the evolving demands of industries
worldwide.
Certified to ISO 9001, ISO 14001, and compliant with RoHS/REACH
standards, we align our operations with global sustainability goals
while delivering exceptional technical support and supply chain
reliability.
3,000+ customized formulations.
500,000+ MT annual production capacity.
25+ years of polymer expertise.
ISO 9001 & ISO 14001 certified facilities.
