![]() What you will start to notice is the time/interval in which your image is exposing correctly. ![]() Once you’re done removing all the strips, move to Step #6: Washing out the screen If you’re confused, do exactly as the diagrams below: Turn on your light source and set your timer. You will start removing each strip in intervals of 2 minutes. Tip: You can use some see-through tape to lightly hold down each strip in place.įinally, you should have something like the picture below.įirst get a stopwatch. It’s okay to if the strips don’t cover the entire screen, but it MUST cover the entire design. This is to prevent any light from passing through. Make sure you don’t leave any gaps in between each strip. Step #3: Line ’em upĪrrange each strip over your screen. Once you have the strips made and numbered. (You can mark each strip with numbers if that’s not too much work.) Step #2: Measure and CutĬut the board into 6 even sized strips. To create your own exposure calculator, you’ll need a relatively thick, heavy card stock (something dark so no light shall pass) similar to this.įor the example today, let’s use an A4 sized black card board. Keep in mind, in whatever setup you have, make sure to maintain the distance between the light source and screen at all times.Īny inconsistency and your calculations won’t be accurate. For example, I use a diy screen exposure unit that consists of a flood lamp placed 2.5 feet away from my screen. DIY your own exposure calculatorīefore I begin, please make sure that your exposure setup follows this simple structure. So whether you’re in the humid subtropics of Florida or up in the dry and nippy Midwest, the only way to expose perfect screens is if you use an exposure calculator. Read more: 17 Screen Printing Emulsion FAQs to Help You Avoid Stress!įorget what the manufacturer has recommended/put on the label – often times, the conditions and overall setup are not like yours. And each manufacturer wil require different exposure times.īut here’s what I found after testing 6 different emulsion types from different companies. ![]() Emulsion and Screen exposure timeĪs it stands, there are simply too many emulsion types in the market today – some are diazo, some are single pot emulsions and the newer ones are hybrids.Įach one has its own unique characteristics and will work well with different substrates. ![]() And once you’re done reading this, I guarantee you’ll be exposing professional grade screens in the next 20 minutes. Now you’re sitting here feeling frustrated for having wasted all that emulsion, time, and energy.įortunately, I have the solution for you. You’re pissed off because you followed the instructions exactly on the manufacturer’s label, but didn’t even come close to what you were hoping for. ![]()
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