Cost of making a basic Dryplate Emulsion

Discussion in 'Silver Gelatin Based Emulsion Making & Coating' started by alexhill, May 22, 2010.

  1. alexhill

    alexhill Member

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    As i've been gearing up to make my first emulsion, I've been keeping recites and decided to share them. I hope this doesn't turn people off from emulsion making. I believe that the following list will be everything I need to make the emulsion. I intend to make a cost analysis of glass cutting and developing.


    Amazon.com (Free Super Saver Shipping)
    Red Led Christmas Lights $17.99
    Digital Scale .01g-100g with 100g Calibration Weight $14.79

    Walmart: (Gas Money)
    Small Glass beaker: $1.50
    stainless steel strainer $8.97
    digital thermometer $12.97
    Glass baking dish 2L $5.00
    (2x) Distilled water 1 Gallon $.83 (x2 = $1.66)
    Hamilton Beach 5-Quart Portable Slow Cooker $19.88

    Le Gourmet Chef (Gas Money)
    Stainless Steel Potato Ricer $14.99
    Cotton Cheese Cloth $4.99
    Plastic and stainless steel syringe $7.99
    stainless steel mixing bowl $3qt 4.99

    Science Company (shipping 8.28)
    Silver Nitrate 25g 28.50

    Photo Formulary (shipping 9.95)
    Chrome Alum 10g 3.95
    Gelatin Hard 100g 9.95
    Potassium Bromide 100g 5.95
    Potassium Iodide 10g 4.95
    Thymol 10g 9.95

    Package Store (Lots of gas money as it is 3 hours away)
    375ml 190proof Grain Alchol $8.95

    Wisconsin Cheese & Wine Chalet (Shipping $4.99)
    Sharp Chedder Cheese Crock 12oz $12.59

    ScienceShopUSA (Shipping $12.95)
    (2x)Pyrex Beaker 250ml $8.75 (x2 = $17.50)
    Pyrex Beaker 600ml $11.95
    (2x)8" Glass Stir Rod $1.65 (x2=$ 3.30)
    (3x)4oz Amber Glass Dropper Bottle $3.75 (x3 =11.25)

    Total: $280.68
     
  2. Photo Engineer

    Photo Engineer Subscriber

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    How about a stirrer? And, glass plates and plate holders, or film support with subbing?

    PE
     
  3. hrst

    hrst Member

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    On the other hand, you could save a lot in beakers etc by using kitchen plastic, stainless steel and glassware. I think Denise Ross' website lists good tips how to use kitchen utensils and machinery in budget emulsion making.
     
  4. Kirk Keyes

    Kirk Keyes Member

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    One question about the "hard gelatin" from the Photographers Formulary. They sell both active and inactive (aka phthalated) photo gelatin. See if what you have is the inactive gelatin - make sure you get the inactive gelatin as it will make your life easier.
     
  5. Photo Engineer

    Photo Engineer Subscriber

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    Both gelatins sold by the Formulary are inactive photo grade.

    One has been Phthalated to allow ISO washing. One is not Phthalated. Both are from Kodak.

    Hard grade only applies to the non-Phthalated and is 250 Bloom.

    PE
     
  6. alexhill

    alexhill Member

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    I cheated a bit by not including plates or developers in this part. The developer chemistry without trays was 33.56 (listed below). I already own the glass cutting equipment (from doing stained glass in the past) and i'm having trouble finding a decent model to quote in my price list. I did not pay for everything listed, but I did have to purchase most of the stuff on that list at said cost. :sad:

    I'm hoping i don't have to buy a hot plate stirrer right away. I am going to use a crock-pot water bath. I hope that either the craigslist gods will deliver, or christmas will come and santa will be kind :wink: i'd probly be going for this one if i were to buy.

    Absolutely true. I got a lot of stuff from the kitchen aisle. I could have hunted at goodwill and such to get some of these items used... but there was two reasons. First, I have no experience making emulsions and i want to remove as many variables as possible with used materials. And second, I don't have any kitchen equipment of my own to pilfer from :smile:. Mason jar glasses FTW.

    Developer Cost:
    Photo Formulary (Shipped with previous order)
    Photographer's Formulary PMK Formula Film Developer 25 Liter 16.95

    ScienceShopUSA (Shipped with previous order)
    Sodium Thiosulfate 500g $14.95

    Craigslist (Gas Money)
    (3x) Developing Trays Free (3x = Free)

    Walmart (Gas Money)
    (2x) Distilled Water .83 (x2 = $1.66)
     
  7. Kirk Keyes

    Kirk Keyes Member

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    I'd look around for a used lab-grade one off ebay. You can get them for that much or less if you don't mind them looking a bit stained...