PETRA

PETRA (Pentaerythritol acrylate) is a multifunctional reactive diluent with a high degree of acrylic unsaturation and finds use in a variety of ultraviolet light (UV) and electron beam (EB) curable coatings and ink systems where a high degree of crosslinking is desired. PETRA is a mixture of predominantly the tri- and tetra-acrylate esters of pentaerythritol.

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