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Xenon 903WR Diazo Emulsion
Xenon 903WR Emulsion

Xenon 903WR Diazo Emulsion

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Part Number:CHEM903WR-

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Quart [+$26.31]
Gallon [+$53.47]

Comes with diazo mix included in the package.  903WR Photo Emulsion 
is a fast drying photopolymer emulsion. 903WR is recommended for Plastisol and water-based ink systems. For water-based ink system, a hardener is recommended for a longer run. A hardener would enhance the durability of the emulsion film for a very long run, but when using a hardener the screen can likely not be reclaimed.  Otherwise the reclaiming of 903WR is easy.  

Add Diazo at room temperature, shake long enough till Diazo powder is completely dissolved and then add the solution to the photo emulsion. Mix well into the emulsion and let stand for at least 30 minutes to release any air bubbles that may have been formed.  It is advisable to use a press or ink wash and ink-degradent that are meant for Plastisol inks.  Avoid using acetone or mineral spirit as they may lock in the emulsion film.

  • broad spectrum of exposure limits, longer latitude
  • good resolution
  • good edge definition
  • perfect mesh bridging
  • fast drying
  • longer print capabilities with great durability
  • easy reclaiming
  • excellent humidity resistance

Specification data:
  • color: Blue
  • viscosity: 13,000/15,000 cps at 20 rpm
  • solids: 42% + -1%
  • solubility: water

Distance for the exposure should be about one and a half times the diagonal measurement of the artwork from point light sources. yellow & orange mesh requires at least 50% more time than white mesh. the times given below are based on white 110 white mesh approximately 40 inches.

  • Metal Halide: 75 seconds for 1000 watts / 35 seconds for 3000 watts /25 seconds for 5000 watts
  • carbon arc 275 seconds for 15 amps/ 150 seconds for 30 amps/ 85 seconds for 60 amps /
  • Fluor. tubes 260 seconds for 40 watt
NOTE - The product image is intended to show an approximate color of the product when applied to the screen.  Actual color may vary.  Product listing does not include screen and / or scoop coater

Emulsion Exposure Differences
Proper screen exposure must take many factors into account – the emulsion type, coating thickness, exposure unit, etc.  As a general guideline for the different emulsion types (diazo, dual cure, and photopolymer) use these times as a reference. 

Photopolymer – These are typically the fastest exposing emulsions, with many exposing correctly from 30-50 seconds.  The shortest times can be seen when using a newer LED-type exposure unit. 

Dual Cure – If you have established a good exposure time with photopolymer emulsions, you can typically add 90 seconds (1.5 minutes) to that time for most dual cure emulsions.

Diazo - If you have established a good exposure time with photopolymer emulsions, you can typically add 210 seconds (3.5 minutes) to that time for most diazo emulsions.

These times will depend heavily on your exposure unit and should only be considered as a starting point.

5 Stars
Very easy to mix and apply. Held up well with large orders. Also, easy to re-claim.
Reviewed by:  from Raleigh, NC. on 2/18/2021
1 Stars
purchased this emulsion on 10/12/19 as a quick replacement for my usual which was out of stock. DO NOT waste time or money on this product. After adding diazo it turned thick as syrup and unusable. Worst I have ever used (tried to use)
Reviewed by:  from Wilmington. on 11/9/2019
5 Stars
Screen printing
Reviewed by:  from Davenport Florida . on 2/16/2019
5 Stars
Used this emulsion when I ran out of TexBlue and it worked just fine. It isn't our everyday coating, but whenever we use it we have no problems at all. A good emulsion.
Reviewed by:  from Myrtle Beach, SC. on 11/14/2017
5 Stars
Fast exposure and very forgiving if artwork is not great
I don't normally write reviews but I read the 1-star left by another and found that to be an unfair and inaccurate review. This item description specifically states that it is recommended for Plastisol and Water Based Inks. It doesn't say discharge, or specifically, "plasticharge", so you can't believe all reviews that you read. I have tried Pure Photopolymer and this is as good if not better than the one that I used. This is my go-to emulsion!
Reviewed by:  from Aberdeen, NC. on 8/4/2016

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