![]() Mesh dyed yellow for better exposure of stencils. Used for higher detail work or waterbased printing. Perfect if you are looking to do higher detailed designs while maintaining a thicker ink deposit. ![]() Great for printing white inks and colours with a thicker viscosity. One of the more common sizes used in the industry. Most common size for general t-shirt printing. Used to print thicker layers of ink, specialty or athletic inks. The 20"x24" size is currently the industry standard for manual screen printing frames. Better mesh adhesion will result in longer screen like and better tension over a longer period of time. These professional grade pre-stretched frames have the highest screen tension and use a 2 part adhesive specifically designed for the screen printing industry. The highest quality control eliminates leaks and drips to ensure problem free stencil production. Whatever emulsion, mesh count, mesh color, and light source you use to expose your screens- I would definitely recommend an exposure calculator to help dial in your screen exposure time.These screens are hand welded to ensure a strong structure and durable life. I have heard yellow mesh exposing better then white mesh because white mesh lets light bounce around and effects the exposure process, where yellow mesh helps trap the light, reducing the amount of light bouncing around the mesh and causing undercutting. A couple other variables will be mesh color and halftones lpi count. Those are just 3 variables that will affect your screen and stencil making steps in exposing screens. A vacuum blanket will draw down and keep the screen mesh pushed tight against the film positive to help increase resolution in your stencils. I would definitely recommend a vacuum blanket with your exposure unit as well. LED light sources are known to last for up to 3-5 years without losing strength in the light lamps. Over time your light source may lose strength, so you may increase your exposure time as your bulbs age. ![]() There are variables to consider with your light source, such as the strength in your light bulbs. But that's not to say you can't use a flood light to expose your screens. Using a professional grade LED exposure unit will put out more light evenly then using a flood light from a local hardware store. Diazo emulsion is the last option- which usually has a window of exposure comparable to that of dual cure.ģ. Photopolymer is the fastest exposing emulsion- but the window is also the smallest, meaning the margin for error is very small for this type of emulsion. The "window" of exposure is the most forgiving of all three types of emulsions. ![]() Dual Cure emulsion are the easiest emulsion for new screen printers to use. The 3 types of emulsion are photopolymer, diazo and dual cure. There are there basic types of emulsion, and each have different needs for exposure. So if there is more emulsion then the exposure time will be slightly more for a 110 then a 305.Ģ. Lower mesh screens have bigger mesh openings- they hold more emulsion- the exposure time will be longer then higher mesh screens. Using a 110 mesh screen will hold more emulsion in the screen mesh then a 305 mesh screen will hold. Here are some tips to help dial in your correct exposure times.ģ Variables that Will Affect Your Screen Exposure Time.ġ. Most new screen printers don't understand the different variables that change the amount of time a screen should be exposed. Exposing a screen and finding the proper exposure times can be a frustrating experience without the correct knowledge.
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