PST - Pre-Printing Surface Treatments

　　　　PST 1126 Pre-Printing Surface Treatment – Vueguard  901®

　　　　PST 1128 Pre-Printing Surface Treatment – TopPro^®

Surfaces coated with PCI’s Vueguard 901^® and TopPro^® High Performance UV-curable Coatings require a preprinting surface treatment before any inking process, due to their highly chemical resistant nature. This surface treatment can be accomplished by using PCI’s specially formulated solutions. This pre- printing treatment ensures good adhesion of the ink to the coated surface. PCI highly recommends that you apply the Vueguard 901^® and TopPro^®UV-curable high abrasion and chemical resistant hard coats, on top of your printed surfaces.

Procedure for cleaning coated parts before inking process:

1. Wet lint-free, polyester wiper with the PST – 1126 formulation. Apply some pressure with wet wiper over the substrate, in even strokes, and then dry with a clean, lint-free, polyester dry wiper.

2. Wet wiper with Propyl Alcohol or IPA. Clean with even strokes, and then dry with a dry, lint-free wiper.

3. If you see streaks, repeat step 2. For best adhesion results, we recommend the following ink curing schedule:

1. Heat curable inks:

  a. On acrylic substrates: 2 to 3 hours at 120°F (49°C)

  b. On polycarbonate substrates (*): 1 hour at 150°F (66°C) - 180°F (82°C)  (*) Depending on substrate thickness

2. UV curable inks:

  Use established curing procedures, as recommended by the ink manufacturer.

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