HX-408 is acrylate styrene copolymer,non-toxic, tasteless,it is odorless product is not only safe for the environment, but also for the end user. With its pollution-free formulation, HX-408 is the epitome of an eco-friendly choice for various applications.odorless and pollution-free. It is an environment-friendly product with excellent elasticity and strength, strong adhesion, good elasticity, and fine particle size with good powder and pigment compatibility.