Shop and safety mistakes
Pouring ink and chemicals down the drain
What goes down the drain is regulated by your local wastewater utility. One city’s guidance for screen printers: scrape ink out dry, wipe screens with rags before washing, minimize solvents, and never pour ink down drains. Instead: call your local wastewater utility and ask what applies to you.
No safety data sheets on hand
Employers need a written hazard communication program, safety data sheets for their chemicals, labeled containers and trained employees (OSHA). Ventilate, wear chemical-resistant gloves and eye protection, and store flammables safely.
Quoting without counting screens
Every color in every print location is its own screen, and each flash slows the press. Instead: count screens and flashes before you price a job. See What affects a print price.
Sources for this guide (17)
- Avient, Mapping your conveyor dryer (PDF)
- Davis International, FAQs
- Wilflex (Avient), Ink curing tips (2020, PDF)
- Vastex, Mesh information
- Catspit Productions, Proper emulsion performance
- Chromaline, Causes of pinholes during screen making
- Murakami, Emulsion coating tips (PDF)
- Screen Printing Magazine, Squeegee consciousness
- dot B, Low printing pressure: what is zero point?
- Lawson Screen & Digital, Understanding off-contact printing
- ScreenPrinting.com, Sizing strategies for large shirt runs
- OSHA, Hazard Communication (29 CFR 1910.1200)
- NIOSH, Health hazard evaluation 2007-0053-3092 (PDF)
- Cedar City, UT, Screen printers best management practices
- Printavo, Screen printing pricing
- International Coatings, Curing ink with a heat gun
- Lawson Screen & Digital, Curing plastisol inks
Ranges are starting points from these sources. When a source and your ink’s tech data sheet disagree, follow the tech data sheet.