Qingdao Orke Chemical Co., Ltd. is one of the most professional manufacturers and suppliers of tert-butyl peroxybenzoate in China, supports customized service with competitive price. Please feel free to buy bulk tert-butyl peroxybenzoate in stock here from our factory. If you have any enquiry about quotation and free sample, please feel free to email us.
Tert-Butyl peroxybenzoate is primarily used as a medium-temperature curing agent for unsaturated polyester resins and a high-efficiency initiator in polymer synthesis.It is a colorless and transparent liquid at room temperature and an organic peroxide with medium temperature decomposition.
The main product characteristics as below
*Strong controllability of reaction:
The decomposition kinetics is stable, providing an ideal balance between gel time and curing speed.
*Wide spectrum processing adaptability:
The decomposition temperature range is perfectly matched with injection molding, compression molding, pultrusion and other composite material forming processes.
*Excellent resistance to induced decomposition:
Low sensitivity to common catalytic impurities such as amines and metal ions to ensure batch stability.
*Color retention:
The decomposition product is light in color and is especially suitable for light products.

Application
Composite material manufacturing:
Unsaturated polyester resin for medium temperature curing of FRP products.

Coating curing system:
As curing initiator for baked coatings and metal decorative coatings.

Synthesis of engineering plastics:
As an efficient initiator in the synthesis of polystyrene copolymers.

Package & Storage
Package
20 kg drum, 25 kg drum, or requirement of clients.
Storage
Store in a cool and ventilated space, warehouse temperature does not exceed 20℃.
Keep away from fire and heat sources. It should be stored separately from acids, reducing agents, flammable substances, combustible substances, reducing agents, etc.
Save according to the manufacturer's instructions, and the product can guarantee the technical standard of the factory within three months.

FAQ
Q: Why is Tert-Butyl peroxybenzoate preferred for high-temperature baking coatings?
A: The decomposition temperature of TBPB perfectly matches the curing temperature of baked coatings, enabling smooth decomposition during baking to achieve uniform curing. Its liquid state facilitates even dispersion in the coating system, ensuring consistent performance across layers.
Q: What are the distinctive features of TBPB in the curing system?
A: TBPB exhibits excellent thermal stability, ensuring safety at room temperature. The cured product maintains a light color without yellowing, making it ideal for applications requiring high color consistency.
Q: Why is Tert-Butyl peroxybenzoate the preferred initiator in continuous pultrusion?
A: Its liquid properties enable precise metering and pumping, with a decomposition window of 105-130℃ that closely matches the mold temperature gradient in the pultrusion process. Notably, the decomposition products act as internal release agents, reducing demolding force by approximately 15% while maintaining mold cleanliness.
Product Specification
| Item | Specification |
|
Appearance |
Colorless transparent liquid |
|
Purity % |
≥99.0 |
|
Assay |
70%min |
|
Water % |
27%max |








