P-toluenesulfonyl isocyanate, is a common single isocyanate ester, is a common dehydrating agent in chemical products, referred to as TI.


Chemical properties:Liquid. Boiling point 144℃/1.3kPa, refractive index 1.5340, flash point 110℃. Hygroscopic and tear-inducing.

Technical performance:

It can be used as a dehydration agent such as solvent, filling, pigmentation, and asphalt caramel in the process of painting. For ordinary solvents. In addition, it does not lead to the yellow change phenomenon of the system. Through the use of TI in polyurethane paint, the phenomenon such as the loss of light caused by the humid surface in the system, the yellow change and the reaction foam are reduced.

Application field:

TI, as a dehydrating agent of solvent, filler, pigment and so on, is effectively used in wet-cured one-component and traditional two-component polyurethane paint systems. In addition, TI can also be used as a stabilizer in butyl purified diisocyanate to prevent its deterioration or discoloration.

Advantage:PTSI is a commonly used chemical in the industry, and for good reason. It has a wide range of applications, and its versatility is unmatched. The most common application of PTSI is as a dehydration agent in painting processes. It is widely used as a solvent, filling agent, pigmentation agent, and even as an asphalt caramel agent.

One of the biggest advantages of using PTSI is its ability to effectively remove water from surfaces. This makes it an ideal choice for use in painting, where the presence of water can cause blisters and bubbles in the final coat. Furthermore, the dehydrating action of PTSI helps to promote faster drying of the paint, which can reduce production times.

Another advantage of using PTSI is its versatility. It can be used with a variety of solvents, which makes it compatible with different types of paints and coatings. Furthermore, PTSI can be used in both waterborne and solvent-based paints, which makes it an ideal choice for most painting applications.

Safety instructions:

This product has extremely high reactivity, so it needs to be particularly cautious when applying and operation. This product and water, alcohol, amine, acid, and alkali response quickly and fiercely, so it is not possible to pour this kind of substance in the product container. The carbon dioxide generated by the one -gram of water is 1.3 liters. If water enters the container, the production of a large amount of gas in a very short time will cause the container and even the burst of the container.

Storage and packaging:

Packing: 20KG/PAIL

This product is sensitive to moisture and should be stored in sealed, original packaging container dry, standard storage, this product has a shelf life of at least six months.



To sum it up, P-toluenesulfonyl isocyanate is a versatile and reliable dehydration agent that can be used in a variety of applications. It has a wide range of uses in the painting industry, where its dehydrating action can promote faster drying and better final coat quality. However, it is important to handle PTSI with care and follow all safety procedures. With proper handling, PTSI is an invaluable tool for any chemical product manufacturer.

Post time: Apr-26-2023