5 Common Screen Printing Mistakes (And How to Fix Them)

Whether you are a DIY printer in your garage or a client wondering why your last batch of shirts from that other guy looked wrong, screen printing is unforgiving. It’s chemistry and physics. Here are the most common pitfalls we see and how to avoid them.

1. The "Low-Res" Nightmare

The Mistake: Using a 72 DPI image pulled from the web. The Fix: You cannot add resolution that isn't there. If your file is low-res, you need to recreate it or trace it in Adobe Illustrator. Always design at 300 DPI or higher.

2. Ignoring Mesh Count

The Mistake: Printing everything on a 110 mesh screen. The Fix: Mesh count controls how much ink goes down.

• 110 Mesh: Good for white ink underbases and blocky text.

• 156-230 Mesh: Essential for fine details, top colors, and halftones.

• Rule of Thumb: If your design looks like a blob, your mesh count is too low.

3. Improper Curing (The "Wash-Out" Issue)

The Mistake: Using a heat gun to cure shirts or trusting the dryer display temperature blindly. The Fix: Plastisol ink must reach 320°F (160°C) all the way through the ink layer to cure.

• Use a laser thermometer (donut probe is better) to check the ink temp as it exits the dryer.

• The Stretch Test: After cooling, stretch the print. If the ink cracks like dry earth, it’s under-cured. If it stretches like a rubber band, it’s good.

4. Flash Drying Too Hot

The Mistake: Overheating the white underbase until it’s sticky or smooth as glass. The Fix: Your underbase should be "dry to the touch" but still slightly tacky (around 220°F). If you over-cure the underbase, the top colors won't bond to it, leading to peeling later.

5. Trusting the Screen (Monitor) Colors

The Mistake: "But on my phone, the blue looked brighter!" The Fix: Screens are backlit (RGB). Ink is reflective (CMYK/Pantone). They will never look identical. Always use a physical Pantone book or ask your printer for a "draw-down" (ink sample) if color accuracy is critical.