Nicoat

Problem: Mudcracking, cratering, or pinholing

 

Solutions:

Coating Is Not Wetting Or Trapping Over The Wet Inks

• Improve the wetting properties of the aqueous coatings by using a different formula. Consult Nicoat.

Coating And Inks Are Not Compatible

• Use inks compatible with coating.

Too Much Ink Being Applied

• Check with ink manufacturer about increasing the ink strength to reduce the thickness of the ink film.
• Apply enough coating to minimize or eliminate the problem, but without causing other problems.

Ink Contains Waxes, Silicones Or Other Additives

• Use inks containing minimal additives.
• Consult the ink manufacturer.

Coating Is Drying Too Quickly

• Reduce IR heat without decreasing the speed of drying in load.
• Increase application of coating.
• Use coating that dries more slowly, if possible. Consult Nicoat for recommendations.

Pinholing

• Improve the wetting properties of the aqueous coatings by using a different formula. Consult Nicoat.

Pinholing Because Coating Is Foaming

• See section on foaming in this guide.