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Thread: Perma Wash ratio for small batches

  1. #1

    Join Date
    Mar 2008
    Location
    Fremont, CA
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    41

    Perma Wash ratio for small batches

    Hi,

    Does anyone know the Heico Perma Wash ratio to use on smaller batches? The directions say 3 ounces to 1 gallon of water. A gallon is too much for my needs since I don't process film that often. My math isn't the best and so I wasn't sure if anyone might already know the correct ratio.

    Thanks!

  2. #2

    Join Date
    Apr 2015
    Location
    Purcellville, VA
    Posts
    573

    Re: Perma Wash ratio for small batches

    32 oz pf water would get 3/4 ounce; 16 oz would get 3/8 oz, 8 oz would get 3/16 ounce. I was using the Permawash cap for a while, but the container doesn't pour so well. I have a small Paterson graduate, 1.5 ounces and the equalivent in ml, which is useful. I also have a measured dropper that I got free at the local pharmacy just for asking, marked at 1 and 2 ml, though I use this mainly for Photoflo.
    Philip U.

    Sine scientia ars nihil est. (Without science/knowledge, art is nothing.)
    https://www.flickr.com/photos/156933346@N07/

  3. #3

    Join Date
    Mar 2008
    Location
    Fremont, CA
    Posts
    41

    Re: Perma Wash ratio for small batches

    Thank you!!!

  4. #4

    Join Date
    Feb 2014
    Location
    Phoenix, Az.
    Posts
    35

    Re: Perma Wash ratio for small batches

    20ml. per liter is how I mix it.

  5. #5
    John Olsen
    Join Date
    Jan 2012
    Location
    Whidbey Island, WA
    Posts
    677

    Re: Perma Wash ratio for small batches

    I always mix Heico Permawash in small quantities (as posted above by Ulophot) so that I won't feel bad discarding it after a day or two. It seems to form some kind of scum clots that stick to my negatives if I let it sit for several days. I'm using reverse osmosis water for the mix, so I don't think the scum is due to my water quality. Otherwise, it's a good product.

  6. #6
    multi format
    Join Date
    Feb 2001
    Location
    local
    Posts
    4,074

    Re: Perma Wash ratio for small batches

    I do 3/4oz/L and I think I finally figured out that is 1 capful ( the small bottle ) is about 3/4oz .. I'll have to re-measure,
    I get tired of squinting my eyes and looking for 3/4 on the vintage cough syrup cuppette.
    enjoy your coffee

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