In a light safe environment center bulb directly above the middle of the screen at a height of 12 15 inches.
Exposure lamp screen printing.
15watt florescent uv tube exposure system very different bulb than the poster lamps beginner small hand shop ok for plastisol.
The cheap way to do a test wedge.
Fluorescent and halogen lights are low in uv light.
Move the thick opaque paper down to where it is covering all but the first 2 rows.
Take construction paper and do 4 5 different exposures.
At ryonet we carry full lines of quality exposure units for both big and small screen printing projects.
Get it as soon as tue sep 22.
They undercut details with long exposures.
The benefit of this test is you only have to expose once and the strip lets different levels of light hit the screen.
Types of exposure lamps as previously explained the ideal light for screen exposures is one that is rich in ultra violet uv light.
Move the paper to expose more of the image each time.
At american screen printing association we get lots of inquiries about using led light from people who are building their own exposure units.
3 7 out of 5 stars 57.
Expose the screen for the amount of time you came up with in step 3 again.
This is why most low cost exposure units have them as a light source.
Thick stencils are very difficult.
Source a light fixture to power bulb.
At the end you will have 4 5 different exposure times.
To expose a screen.
Long exposures even with the fastest emulsions.
1 16 of 436 results for screen printing lamp speedball diazo light kit.
Multi point metal halide uv screen exposure lamps excel on all emulsions.
Tape the calculator to screen and cover all but the first row with thick opaque paper.
They allow crisp high quality and professional looking exposures in a lightweight and budget friendly package.
Expose the screen for the amount of time you came up with in step 3.
4 5 out of 5 stars 3 033.
But they are low cost to purchase and readily available.
Our exposure units are made in the us with high quality aluminum and thick foam.
Free shipping by amazon.
The higher your bulb is the longer your exposure time and the more coverage to the screen.
Since traditional high uv light sources metal halide and mercury vapor lamps for home made exposure units are becoming harder to find we have found some led lights sources that are affordable safe to use and will work effectively for exposing screens.