
Benefits of PBT Plastics
As leading PBT suppliers, our PBT plastics offer a myriad of advantages such as good dimensional stability, high heat resistance, and chemical resistance. Moreover, PBT resins exhibit superior tensile, flexural, and dielectric strengths compared to numerous thermosetting materials. PBT granules are often used as insulators in the electrical and electronics industries to ensure reliable insulation in various applications.


Outstanding Chemical Resistance: Resistant to diluted acids, alcohols, aromatic hydrocarbons, ketones, solvents, oils, and greases.
Extremely High Electrical Resistance & High Dielectric Strength: Protects electrical and electronic components.
Low Molding Temperatures: Crystallizes rapidly compared to many engineering plastics.
Withstands Long-term Heat Exposure: Thanks to its high HDT (Heat Deflection Temperature) and high temperature index.
Good Durability: Performs well under thermal stress and harsh chemical environments.
Excellent Creep Resistance, Dimensional Stability, and Low Water Absorption.

Automotive Components: Wiper covers, outer handles, mirror housings, cowl vents, cooling fans, fuel system components, connectors, and bumpers.
Electrical and Electronics: Micro-motor housings, fuse boxes, ignition system parts, couplers, power tool casings, IC sockets, plug connectors, circuit breakers, terminal boards, and keyboards.
Consumer Goods: Dryer nozzles, toothbrush bristles, lamp bases, iron handles.
Properties | Test Condition | Test Method | Unit | Typical Value |
Physical | ||||
Specific Gravity | ASTM D792 | - | 1.42 | |
Molding Shrinkage | ASTM D955 | % | 1.2 ~ 2.0 | |
Melt Flow Rate | 250ºC/2.16kg | ASTM D1238 | g/10min | 18 |
Water Absorption | 23ºC, 24hrs | ASTM D570 | % | 0.08 |
Mechanical | ||||
Tensile Strength, 3.2mm | ASTM D638 | |||
@ Yield | 50mm/min | kg/cm2 | 520 | |
Flexural Strength, 3.2mm | 1.3mm/min | ASTM D790 | kg/cm2 | 820 |
Flexural Modulus, 3.2mm | 1.3mm/min | ASTM D790 | kg/cm2 | 22,000 |
IZOD Impact Strength, 6.4mm | ASTM D256 | |||
(Notched) | 23ºC | kg·cm/cm | 6.0 | |
Thermal | ||||
Melt Temperature | ASTM D3418 | ºC | 223 | |
Heat Deflection Temperature, 6.4mm | ASTM D648 | |||
(Unannealed) | 18.6kg | ºC | 62 | |
4.6kg | ºC | |||
Flammability | UL94 | |||
0.71mm | class | V-0 | ||
1.5mm | class | V-0 | ||
3.0mm | class | V-0, 5VA | ||
Relative Temperature Index | UL 746B | |||
Electrical | ºC | 130 | ||
Mechanical with Impact | ºC | 130 | ||
Mechanical without Impact | ºC | 140 |



Ningbo Dongbo New Energy Co., Ltd. Was established in October 2015. The company is located in Ningbo City, Zhejiang Province, with convenient transportation and favorable geographical position, which focus on researching eco-friendly bio base materials which are phthalate-free, non-toxic and biodegradable.
The main products are green solvents and plasticizers. Green solvents includes methyl oleate, methyl palmitate, ethyl oleate, oleic acid, and propyle ne glycol (PG); Green plasticizer includes epoxy fatty acid methyl ester (EFAME), epoxidized soya bean oil (ESBO), composite plant ester (CPE), Dioctyl adipate (DOA), Dioctyl sebacate (DOS), Acetyl Tributyl Citrate (ATBC), Triacetin. Green solvent is mostly used in pesticide, coating and drilling lubricant. Green plasticizer is mostly used in PVC products, wires & cable, leather and toys. The company's strict quality assurance system, perfect enterprise management system, and high-quality product after-sales service are the basis of our company. Our company adhering to the principle of "quality first, reputation first", providing our customers with various types of quality and quantity product. Always adhering to the " quality- oriented, integrity and pragmatic, diligent and enterprising, service-oriented" business philosophy, and applying it to the company's management and management. In the face of a fiercely competitive environment, the company's system has been continuously improved, relying on science and technology, continuously increasing its products' scientific and technological content, and creating a higher market value for the society, customers and companies.
Q: Are you a trading company or manufacturer?
A: We are a factory.
A: eco friendly plasticizer, organic solvent, and other green chemicals.
Q: What are your terms of payment?
A: TT, LC, DA, DP, or as per customer's requirement.
Q: Could you tell me your company payment terms?
A: General 100% T/T in advance,30% T/T in advance,70% payment against copy of Bill of Loading,100% L/C at sight.
Q: Do you provide samples? is it free or extra?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: How long is your delivery time?
A: Generally it is 7-10 working days after payment.
Q: How do you ensure quality?
A: We will trace the goods from production to selling, and we will solve the problems in selling for our customers.
YOU ARE WARMLY WELCOME TO CONTACT US AT ANY TIME !