To effectively use haze remover for screen printing, apply it after decoating the screen, let it sit for a specific time, and then thoroughly clean it. Here's a breakdown of the process:
-
Decoat the Screen: Begin by completely removing any remaining emulsion from the screen using a suitable emulsion remover (de-coater) according to the product instructions. Rinse the screen thoroughly.
-
Apply Haze Remover: After decoating, apply the haze remover (like Spot-On de-haze) to both sides of the screen. You can use a brush or a scrub pad to ensure even coverage.
-
Dwell Time: Allow the haze remover to remain on the screen for the recommended time. The provided reference suggests approximately one hour, but always refer to the specific instructions on your haze remover product as times can vary.
-
Clean the Screen: Thoroughly rinse the screen with a high-pressure jet wash. Ensure all traces of the haze remover are removed.
-
Degrease the Screen: Crucially, after using haze remover, degrease the screen. Use a degreaser or mesh prep solution (like Spot On Degreaser or Mesh Prep) to remove any residual chemicals or oils. This step is essential for proper ink adhesion in subsequent printing.
In summary, use haze remover after emulsion removal, apply it evenly, allow sufficient dwell time, rinse thoroughly with high pressure, and always degrease afterward to prepare the screen for printing.
