Calculate accurate screen printing exposure time instantly using our free Screen Printing Exposure Calculator. Get precise results based on light source, mesh count, emulsion type, and distance.
Screen Printing Exposure Calculator
What is Screen Printing Exposure Calculator
A Screen Printing Exposure Calculator is a tool used to estimate how long you should expose your screen to light when burning a design onto emulsion.
It considers key variables such as:
- Light source type (LED, UV, sunlight)
- Mesh count
- Emulsion type
- Distance from the light source
Instead of guessing, the calculator gives you a reliable starting point for consistent results.
How to use the Screen Printing Exposure Calculator
Using the calculator is simple and takes less than a minute:
1. Select your light source
Choose the type of light you are using (LED, fluorescent UV, metal halide, or sunlight). Each has different intensity levels.
2. Enter mesh count
Input your screen mesh count (e.g., 110, 160, 230).
Higher mesh counts usually require longer exposure.
3. Choose emulsion type
Select between:
- Diazo (slower exposure)
- Dual cure (medium)
- Photopolymer (fastest)
4. Input distance from light
Measure how far your light source is from the screen (in cm).
Greater distance = longer exposure time.
5. Click calculate
The tool will instantly display your estimated exposure time in seconds or minutes.
Screen Printing Exposure Time Chart
| Light Source | Approx. Exposure Time |
|---|---|
| LED (20–50W) | 30–60 seconds |
| Fluorescent UV | 2–5 minutes |
| Metal Halide | 20–40 seconds |
| Direct Sunlight | 3–8 minutes |
Note: These are rough estimates. Always confirm with a step test.
FAQs
How do I know if my screen is underexposed?
The emulsion will wash away too easily, and fine details may disappear.
What happens if I overexpose a screen?
The design becomes hard to wash out, and small details may not appear.
Does mesh count affect exposure time?
Yes. Higher mesh counts require more exposure because they hold thinner layers of emulsion.
Can I rely only on a screen printing exposure time chart?
Charts are helpful, but a calculator + step test gives the best accuracy.
The Screen Printing Exposure Calculator removes guesswork and helps you achieve consistent, high-quality prints.
Use it as your starting point, then refine your process with step tests and real-world experience. With the right exposure time, your prints will come out cleaner, sharper, and more professional every time.
Also see: Free 3D Printing Cost Calculator