
The product is a high - quality photoinitiator named TPO, with the CAS number 75980 - 60 - 8. Photoinitiator TPO is a highly efficient free - radical (type I) photoinitiator for UV - curing systems. It has excellent absorption properties in the UV - A and UV - B regions, which enables it to quickly initiate polymerization under UV light irradiation.
Some of its important parameters include:
Photoinitiator TPO has a wide range of applications in different industries due to its high efficiency in initiating UV - curing reactions.
Coatings Industry: In the coatings industry, TPO is used in UV - curable coatings for wood, metal, plastic, and paper. These coatings can provide excellent surface hardness, scratch resistance, and chemical resistance. For example, in wood coatings, UV - cured coatings with TPO can enhance the aesthetic appearance of the wood while protecting it from wear and tear.
Printing Inks: UV - curable printing inks are increasingly popular due to their fast drying time and environmental - friendliness. TPO is used as a photoinitiator in these inks to achieve rapid curing on various substrates, including packaging materials, labels, and promotional items.
Adhesives: UV - curable adhesives containing TPO are used in bonding applications where fast curing and high bond strength are required. They are commonly used in the electronics industry for bonding components, as well as in the automotive industry for assembling parts.
When using Photoinitiator TPO, it is important to follow the appropriate procedures to ensure optimal performance.
Formulation: First, determine the appropriate concentration of TPO in the UV - curable formulation. The concentration usually ranges from [X]% to [Y]% depending on the specific application and the type of monomers and oligomers used. Then, mix TPO thoroughly with other components of the formulation, such as monomers, oligomers, and additives, using a suitable mixing equipment.
Application: Apply the formulated UV - curable material onto the substrate using methods such as spraying, brushing, or roller coating. Make sure the coating has a uniform thickness for consistent curing.
UV Curing: Expose the coated substrate to UV light with the appropriate wavelength and intensity. The curing time depends on factors such as the thickness of the coating, the type of UV lamp used, and the concentration of TPO. Generally, the curing process can be completed within a few seconds to minutes.
Case 1: UV - Curable Wood Coatings
A furniture manufacturing company wanted to improve the quality and production efficiency of their wood coatings. They used a UV - curable formulation containing 3% Photoinitiator TPO. After applying the coating on the wood surface by spraying and curing it under a medium - pressure mercury lamp for 5 seconds, the coated wood products showed excellent hardness and gloss. The production cycle was significantly reduced compared to traditional solvent - based coatings, and the environmental impact was also minimized.
Case 2: UV - Curable Printing Inks for Packaging
A printing company that specialized in packaging printing switched to UV - curable inks using TPO as the photoinitiator. They used a formulation with 4% TPO. The inks were printed on cardboard packaging materials using a flexographic printing press. The inks cured instantly under UV light, allowing for high - speed printing. The printed products had sharp images and excellent

This is William, CEO of Zhishang Chemical Co., Ltd.
Welcome to visit our factory . As the top chemical manufacturer, we have been striving for product quality, innovation , R&D, and customer service for the past 7 years. In the next 10 years or even longer, we are committed to becoming the most reliable chemical supplier in the world , creating a well-known international brand trusted by customers, with the spirit of “one meter wide, ten thousand meters deep”, we continue to focus on product research and development, continue to focus on customer service, continue to improve the supply chain service system, to create a professional chemical supply service team, to achieve win-win long-term cooperation. Please feel free to contact us if you have any questions.











