DX-C is specifically designed for unclogging UV print heads. It’s considered a strong solution, and should be used with care. Do not expose print heads to it for longer than 1 hour. – Advanced chemistry formulated specifically for unclogging Epson heads with UV curable inks. – Safe for print heads. – Can be used with PHD-LE kits, a PHD machine or even with just a syringe. – A great solution for soaking clogged print heads. – Works with Epson and non-Epson UV print heads.