Uniform color and additive distribution
Custom formulations for color and flame retardancy
Enhanced impact resistance and toughness
Improved heat resistance for high-temperature use
Anti-aging and UV protection
Consistent batch-to-batch performance
PBT, also we call it polybutylene terephthalate. The PBT master batch is a masterbatch that mixes a relatively high proportion of agents (such as pigments and additives) into PBT resin.
PBT (Polybutylene Terephthalate) represents an necessary polymer due to its unique combination of properties ( such as heat resistance, mechanical strength, and low moisture absorption). However, in practical manufacturing, the PBT granules have to face the following challenges:
➤ Yellowing or inconsistent color
➤ Unable to meet safety standards for lacking of flame retardancy
➤ Brittleness or insufficient impact resistance
➤ Aging or reduced lifespan in outdoor or high-temperature environments
Then, here come our Standard Polymer’s PBT masterbatches. Some of the most significant improvements in polybutylene terephthalate (PBT) can be achieved through the use of masterbatch technology. By incorporating tailored masterbatches, PBT masterbatch fixes those issues. It can enhance product performance while maintaining compatibility and batch-to-batch consistency.
PBT masterbatches are categorized based on their functional additives and the performance problems they solve:
Masterbatch Type | Function |
Color Masterbatch | Greatly reduces yellowing, ensures uniform color |
Whitening Masterbatch | Removes slight yellow appearance, produces bright white parts |
Flame Retardant Masterbatch | Improves fire safety rating (e.g., UL94 V-0) |
Reinforcing/Toughening Masterbatch | Enhances impact resistance |
Anti-Aging Masterbatch | Improves weather resistance, protects product against UV and oxidation |
Please feel free to ask for the complete list from us
tip: Select master batch type based on your product performance requirements.
Thanks to their excellent properties, PBT masterbatches are widely applied in:
▪ Electronics & Electrical: Connectors, switches, coil forms, relay and capacitor housings (high flame-retardant requirements)
▪ Automotive: Sensors, ignition system parts, lamp holders, bumpers (heat and impact resistance)
▪ Machinery: Gears, bearings, pump housings, fan blades (enhanced wear and toughness)
▪ Optical Fiber: Secondary coating materials (UV and aging resistance)
▪ Home Appliances: Internal components of rice cookers, hair dryers, coffee machines (heat resistance and safety)
Procurement tip: Match masterbatch type to your application for faster selection.
Property | PBT | PP | PE | PET |
Material Type | Engineering Plastic | Commodity Plastic | Commodity Plastic | Engineering Plastic (fiber/film) |
Heat Resistance | 150–200 °C | About 100 °C | 60–80 °C | 70–220 °C, |
Compatibility | Polar materials | Non-polar materials | Non-polar materials | Polar materials |
Typical Applications | Electronics, automotive, engineering parts | Daily goods, packaging, toys, auto interiors | Bags, films, pipes | Bottles, fibers, films, engineering parts |
Processing Temperature | 240–260 °C | 200–230 °C | 180–220 °C | 260–290 °C |
Purchasing tip: PBT masterbatch is ideal for high-performance engineering plastic applications, outperforming commodity plastics.
As we compared PBT with other resins, it is easy to wonder how to choose the right resin between them? Later I will present the similarity and differences for you.
Chemical structure: PBT and PET have similar chemical structures; the main difference is the diol chain length.
Theoretical interchangeability: In low-demand applications, PET masterbatch could replace PBT. But we still not recommend that.
Practical caution: PBT and PET are different in crystallization rate and shrinkage. The differences may affect dimensional stability and surface finish. Therefore, for high-performance engineering parts, always use dedicated masterbatch.
Suzhou Standard Masterbatch offers high quality PBT master batch since 2009, and we have rich experience in this area. We are able to offer masterbatches with:
🟢 High Concentration & Uniform Dispersion: Ensures stable color and additive distribution, reducing material waste.
🟢 Customized Formulations: we have formed mature formulas to tailor color, flame retardancy, toughness, or anti-aging properties according to your product requirements.
🟢 Batch-to-Batch Consistency: our factory runs under ISO:9001 system. We follow the strict quality control to guarantee uniform performance across large production runs.
🟢 Compliance & Safety: Our products can pass major international standards (RoHS, REACH, FDA). It is suitable for global markets.
🟢 Technical Support: Our professional technical team can provide guidance on dosage, processing conditions, and material selection to optimize production efficiency.
Small summary: Using Suzhou Standard Masterbatch minimizes trial-and-error during processing, we ensure faster time-to-market and reliable product performance.
✅ Clarify performance requirements: Choose flame retardancy, heat resistance, impact resistance, anti-aging, and ect..
✅ Select matching carrier resin: we suggest you use PBT masterbatch for PBT parts to avoid compatibility issues
✅ Ensure supplier reliability: Stable formulations ensure consistent batch performance
✅ Match masterbatch type to application: Choose color or functional masterbatches based on product needs
