Benefits: 

• Extremely Durable - 2 Part Emulsion - Diazo Required & Included
• Compatible with water-based inks
• Produces crisp detailed stencils on all mesh counts
• Endures long print runs without breaking down
• Long Shelf Life - 12 months if unmixed. Once mixed with emulsion product is good on the shelf for 3 weeks.
• Important to note: Do not use with a weak light source or blacklights

Ecotex® Water-Resistant Blue Emulsion (WR Blue) by Screen Print Direct® is the ultimate diazo emulsion for screen printing. This two-part emulsion is highly resistant to plastisol & water-based inks. An ultra-durable solution designed for long print runs because it is extremely water-resistant. Perfect emulsion for screen printing posters with water-based ink and textile printing with water-based and discharge inks. Before use, diazo must be added and allowed to activate the emulsion. Once the diazo has been mixed it is ready for use. Apply to clean, degreased, and dried screen with a scoop coater. Be sure to use appropriate application techniques. Reclaiming Ecotex® WR Blue emulsion is easy with .

Helpful Hints To Ensure Your Emulsion Lasts Longer Once Mixed:

• Always use distilled water to mix the Diazo sensitizer.
• Keep in a cool area, emulsion will break down much faster in heat. Keeping emulsion in a fridge can help to give a slightly extended shelf life, however, emulsion that has gotten to the point of freezing will no longer work properly and must be replaced.
• Keep the emulsion lid on tight to preserve air and light leaks.
• Gently mix the emulsion each time before use to help extend the life.
• For long runs of over 1,000 shirts – use to extend the life of your stencil.
• To ensure best results, date your emulsion once mixed and keep an extra container on hand once the emulsion is about to expire*

Emulsion for screen printing can be tricky and if you still need help trying to find out which is right for you take our   This quiz will help you determine which emulsion you need for the project at hand. If you want to learn more about emulsion types and decipher for yourself which emulsion is better take a look at our emulsion guide - 

Emulsion Instructions: 

1. Add 50%-75% of distilled water to your packet of diazo and shake the container. DO NOT use tap water.

2. Pour mixed contents into WR-Blue and stir in diazo making sure it is blended evenly. 

3. Apply WR Blue Emulsion to clean, degreased, and dried screen with a scoop coater. Be sure to use appropriate application techniques.

Note: Keep in mind you need to eliminate any UV light from entering the room. Work under yellow or red light to ensure the emulsion does not start the emulsion process early. 

4. Allow the emulsion to dry on the screen, shirt side down, until dry to the touch. We recommend letting the emulsion dry overnight.  Drying specifications can be found below. 

5. Expose Emulsion. Time will vary depending on the unit, we have recommended times below. If not using the units mentioned below we highly recommend using an exposure calculator to help dial in exposure times faster than a trial and error method. You can find  here.

6. Once you have printed with your screen clean the ink off the screen with , differences are detailed below. If you plan on reusing this stencil do not reclaim it. If you are done with this stencil, reclaim the screen with . Do not leave remover on the screen longer than a minute or the emulsion will lock onto the screen. For more instructions on emulsion remover please visit  

Ecotex® WR Blue Emulsion Exposure Time:

Exposure times may vary, start using the times provided below and make adjustments to time if needed.

• 80 - 90 seconds with 80W LED Light
• Light source 2-3 inches away from the screen 
• Light source under the screen and artwork 
• 12 - 13 minutes with 500w Halogen Light
• Light 14-15 inches away from the screen
• Light source suspended above the screen
• 270 seconds/4.5 minutes with 30W UV LED Light ( SPD Exposure Unit) 
• Light 14-15 inches away from the screen
• Light source suspended above the screen

Elements that affect exposure time: 

• Humidity - When handling emulsion for screen printing keep levels of humidity under 40%, if the climate doesn't allow for this, use a humidifier. 
• Mesh Count
• Low mesh exposes slower. High mesh exposes faster
• White mesh exposes faster. Yellow mesh exposes faster 

Drying:

• 86 ° to 104 °F (30 ° to 40 °C)
• 30% to 50% humidity
• Good Air Circulation

Shelf Life & Storage:

• 12 months if not exposed to extreme weather conditions or exposed to light
• Mixed with diazo: 3 weeks

✔️Pro Tips:

• Always use distilled water to mix the Diazo sensitizer.
• Prep your screen before coating with 
• Eliminate any UV light from entering the room and work under a yellow light.
• Use the sharp edge of your scoop coater
• Make sure the screen is completely dry before coating the emulsion
• Make sure the emulsion is completely dry before printing
• Keep the emulsion lid on tight to preserve air and light leaks
• Gently mix the emulsion each time before use to help extend the life
• Write down the day you opened the emulsion on the bottle to better keep track of your chemicals.
• Keep in a cool area, emulsion will break down much faster in heat. Keeping emulsion in a fridge can help to give a slightly extended shelf life, however, emulsion that has gotten to the point of freezing will no longer work properly and must be replaced