In the world of coatings and inks, traditional solvent-based players always have a group of "organic followers" - that is, organic solvents, whose main function is to dissolve solid components and adjust the "viscosity" of the entire system. However, these "little followers" do not participate in the film-forming process. They quietly slip away behind the scenes and evaporate into the air, which not only pollutes the environment, but also may bring certain safety hazards.

BM3380 (3EO-TMPTA): Ethoxylated Trimethylolpropane Triacrylate, is a trifunctional UV monomer widely used in UV coatings, inks, and 3D printing.

In the synthesis of polyurethane acrylate, hydroxyl acrylate reacts with NCO groups to introduce acryloyloxy groups, which are generally present at the chain ends of polyurethane prepolymers.

In the large family of photocurable resins, in addition to the "tough guy" epoxy acrylate, another important type of resin is polyurethane acrylate, which is abbreviated as PUA. This all-round talent has shown his prowess in the fields of photocurable coatings, inks, adhesives, etc. Although it is slightly inferior to epoxy acrylate, it is also quite popular. It is synthesized from raw materials such as long-chain diols, polyisocyanates and hydroxy acrylates. Since these three raw materials have a variety of structures and models to choose from, through clever molecular design, whether it is flexibility, hardness or wear resistance, PUA can be "designed" in advance to meet the needs of different scenarios. This flexibility makes PUA the one with the "most product brands" among photocurable resins.