Diazo Photo Emulsion

Diazo Photo Emulsion
4.20 star rating 4.20 ( 15 review )
Product Details 1+
6.6 oz. $4.90
Product Details Qty
Color Chip / Item image 6.6 oz.
This product is sellable
Product Details 1+
1 oz. $3.99
Product Details Qty
Color Chip / Item image1 oz.
Now sold in a 1oz bottle! Must use 1 bottle per 6.6 oz. Photo Emulsion
This product is sellable
In Stock = In Stock | Out Of Stock = Out Of Stock | Special Order = Special Order | Drop Ship = Drop Ship

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Speedball Diazo Photo Emulsion is used to prepare a screen for the photo emulsion screen printing process. ONE FULL OUNCE of Diazo Sensitizer is required to make 6.6 ounces of sensitized Photo Emulsion. 

To use: Thoroughly combine the Emulsion with the Sensitizer then apply it to your screen and let it dry. Once the emulsion is dry, simply lay down and tape your positive print or transparency sheet flush against the emulsion coated surface and expose it to light. Once mixed, the sensitized emulsion will last up to 4 weeks when stored (closed) at 90F, up to 8 weeks stored at 70F, and up to 4 months when refrigerated. If you need to remove the dried emulsion for any reason, use Photo Emulsion Remover for best results. 

6.6 oz. Jars

Made in: UNITED STATES (USA)



      
          

Speedball Diazo Photo Emulsion FAQ

Question:

How many 10" x 14" screens can I produce with mixed Diazo Photo Emulsion?

Answer:

4 liquid ounces = 7 screens, 8 liquid ounces = 14 screen, 32 liquid ounces = 55 screens.

Question:

Can I use a Plastisol ink with Diazo Photo Emulsion?

Answer:

Yes, you can. Wash out with mineral spirits.

Question:

I want to use the photo emulsion method in a project where I will be transferring text and drawings to steel through the use of galvanic corrosion. The resist must hold up to about one hour submersion in a water solution. Will Diazo Photo Emulsion do this?

Answer:

The sensitized and properly exposed photo emulsion will withstand the water immersion. A post exposure of about 10 minutes, or longer, to sunlight will insure and improve the water resistance.

Question:

When should I use Photo Emulsion Remover? Is there any other way to remove Photo Emulsion from the screen?

Answer:

You use the Remover when you want to reclaim the screen for another design. No, there is no other way to remove the Diazo Photo Emulsion from the screen. You may replace the screen fabric by removing the cord, replacing the screen fabric and putting the cord back in. However, you need to be sure the tension is strong.

Question:

What is the longest time you can leave photo emulsion on a screen without damaging it?

Answer:

The length of time and high temperatures will make removal more difficult. Use the Diazo Photo Emulsion Remover per instructions.

Question:

How do I remove aged Photo Emulsion?

Answer:

Brush on Diazo Photo Emulsion Remover to both sides of the screen. Scrub with a dry nylon bristle brush on both sides. Repeat process. Allow to stand exactly 1 ½ minutes. Scrub on both sides with the brush. Repeat process. Continue repeating these steps until you note total dissolving/removal of the stencil. Finally, spray with a hard spray of very hot water, using a nylon bristle brush for complete cleaning. NOTE: The screen stencil must be kept wet with the remover throughout the entire removal procedure.

Question:

What is the exposure time for Halogen or Metal Halide lamps with Diazo Photo Emulsion?

Answer:

The basic exposure time for 12xx White Multifilament Polyester mesh (found in all of our kits) at a lamp height of 40 inches is as follows: 1000 watt=140 sec. 2000 watt=70 sec. 3000 watt=45 sec. 4000 watt=33 sec. 5000 watt=25 sec. The mesh variation factors are: Dyed fabric-1.75 305T mono white fabric-0.6 Above, finer than 305T-0.6 Above, coarser than 250T-1.0 The exposure distance factors are: 20”/50cm.=.25 24”/60cm=.36 28”/70cm=.49 36”/90cm=.81 40”/100cm=1.00 44”/110cm=1.21 48”/120cm=1.44 52”/130cm=1.69 56”/140cm=1.95 60”/150cm=2.25 Calculation example: If you are using a 2000 watt halogen light source, at a 48” exposure distance and the 12xx multifilament mesh, the exposure time calculation is (2000 w. lamp time) x (exposure distance factor) x (mesh factor) = 70 sec. x 1.44 x 1.0= 101 seconds
PRODUCT REVIEWS
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MOST HELPFUL REVIEWS

5 star rating
1/8/2013
5
I get it rigth first time )
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3 of 3 users found this review helpful.

5 star rating
3/30/2012
5
I'm a first time user and had good results. I didn't get an even coat on the screen application but pressed on. I had a halogen work light and guesstimated a 10 minute exposure at a 12 inch height. Propped two sticks across a couple of crates and set the light face down on them. I washed the screen out in the kitchen sink with the rinser thingy. The thick parts of the emulsion took more rinsing to was out. It looks like a good stencil that will work.
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3 of 3 users found this review helpful.

5 star rating
10/7/2010
5
I love this product It's easy to use (although a little thin) I coat it 3 times on each side and it works great. I expose all my images with sun light and it's is super fast 2-3 minutes at most and I get a perfect image every time..
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5 of 7 users found this review helpful.

5 star rating
4/30/2013
5
I've been using this stuff for 5 years. Easiest emulsion to use. Most of my screens are 14x16" and burn in 18-20min 18" away from two 75w bulbs. It takes a little longer if the screens are big. Perfect washout each time.
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2 of 3 users found this review helpful.

5 star rating
12/16/2011
5
Great product easy to use.
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2 of 3 users found this review helpful.


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