A tip recently published in “Printwear” by John Levocz.

Some jackets can have a water-repellent coating that will potentially become an issue when screen printed on. The coating is designed to help water from saturating the garment, but if it is so good that it is blocking the water from penetrating the garment, it will also inhibit the ink from bonding correctly to the jacket. If the ink is not bonding correctly, the abrasion resistance and adhesion will be compromised.

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