Which way to print for best impression on coroplast; parallel to the corrugation lines or across ?
Usually it is best to print parallel to the flutes. However, there are times when it is not possible to print with the flutes and have the correct finished product. For example if you are printing political signs that are getting a "H" stand to hold them up. The stand is inserted into the flutes. So, if you have to print against the flutes take the same precations that you would take to control bleed, or excessive ink laydown on any project. Use a tighter mesh screen, thicker ink, stiffer squeegee and so on. It may not always be the best answer to use all of the above, but with some experimentation you can figure it out.
Hope that this helps.
David J. Lee
I have a new training video that will be out by the end on May that covers ALL the techniques on screen printing COROPLAST ... step by step.
I will say this .... OFF / ON contact makes VERY little difference .... printing WITH / AGAINST flukes is of SMALL importance ...... the ONLY things that TRUELY have an impact are a GOOD press ... (not jiffy clamps) ... INK BRAND... and correct THINNING. Thick ink is the WORST... WORST... WORST... thing you can do.
Watch for my video on E-Bay and on my website.
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