DITMPTA Di(trimethylolpropane) Tetraacrylate CAS 94108-97-1

(1) UV Inks as Reactive Diluents

Di-TMPTA can effectively reduce the viscosity of UV ink systems, improving their processing suitability, such as leveling and printability; and it has good compatibility with acrylate oligomers (such as epoxy acrylates, polyurethane acrylates, etc.), pigments, and other additives. Di-TMPTA has a tetrafunctional structure, which can rapidly polymerize under UV light, significantly shortening the curing time and meeting the requirements of high-speed printing. The cured ink film has high hardness, excellent abrasion resistance, and a certain degree of toughness, avoiding brittleness and ensuring stable adhesion of the ink to different substrates (such as plastics, metals, and paper).

(2) UV Coatings

Due to its tetrafunctional structure, Di-TMPTA can form a highly cross-linked network structure during the photocuring process, significantly improving the hardness, abrasion resistance, and chemical corrosion resistance of the coating. Its high reactivity helps to complete curing in a very short time, shortening the production cycle and improving production efficiency, making it particularly suitable for high-speed coating production lines. Therefore, it is widely used in UV coating fields with high mechanical performance requirements, such as wood furniture coatings and metal coatings.

(3) UV Adhesives

In UV adhesives, Di-TMPTA, as a multifunctional reactive diluent, accelerates the curing reaction and shortens the curing time under the action of photoinitiators, thereby improving production efficiency. It also helps enhance the transparency, gloss, and surface smoothness of the adhesive, reduces shrinkage, and ensures stable and consistent bonding results. After curing, Di-TMPTA imparts a hard yet elastic film with excellent tensile strength, making it resistant to brittleness and adaptable to the bonding needs of various materials.