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Author Topic: How to tell what medium was used  (Read 247 times)

liz

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on: October 02, 2017, 11:42:07 AM
 :help: I seem to have a problem:
              I have a couple of already finished paintings that I want to do simple touch up with glazing.  They were done over a year ago and I cannot tell if they are acrylic or WSO/water soluble oil.  They may also have been spray varnished lightly.  Feeling the surface, looking at them sideways doesn't seem to tell me if they are acrylic or oil.  Should I just try on an edge and see if the paint sticks or not?  Can anyone help here?
~Liz


mea hamo pena

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Reply #1 on: October 02, 2017, 04:22:15 PM
Liz,

Sorry, no advice on that question.

I photo every thing I do and file the photo under the medium.

aloha

mea
A day without art is like a day without sunshine.


liz

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Reply #2 on: October 02, 2017, 07:42:48 PM
 :) Thanks, MAL! I've learned an important lesson.  You see, whether acrylics or oil, I paint with the same techniques which is blocking in then painting in layers.  I normally don't touch up anything after I'm pau and I've varnished the paintings (acrylic).  I guess that's why I can't tell if it's acrylic or oil, unless I just painted it recently!  But I will put a mark in the back of the canvas A or O.  What do you mean you file the photo under the medium- on your computer?
~Liz


mea hamo pena

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Reply #3 on: October 02, 2017, 09:45:55 PM
I have an an ART file on my computer.  One of the categories is ART WORKS.  Under that I have listed each medium, many with subtopics like Lessons and challenges, Practice pieces, finished work, etc.

Another main category is ART RELATED and look at what is in that one:

aloha

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A day without art is like a day without sunshine.


liz

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Reply #4 on: October 02, 2017, 11:49:27 PM
 :) MaryAnne, you're one akamai wahine!  It hadn't dawned on me that I used to do Files before.  I used a lap top for many years until my son thought I could simplify my life with an iPad.  Actually I gave my laptop to my oldest granddaughter who was going to college. All of my photos of my art are now in Photo, but recently I put them into 'Albums' and I never noted A or O on them! 
I remember that day at Windward Mall.  What a wonderful time we had!  Thanks so much!  :flowers: :flowers: :flowers: ~Liz


EmmaLee

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Reply #5 on: October 03, 2017, 03:17:38 AM
Couldn't you use oil for touch ups and glazes? Oil goes over both oil and acrylic. Not sure about varnish though.  :confused:
EmmaLee


liz

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Reply #6 on: October 04, 2017, 08:10:31 AM
EMMALEE, I think you're right about using oil for the small touch ups. I guess I can try a spot or two. Thank you! -Liz


Annie.

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Reply #7 on: November 07, 2017, 04:57:19 AM
Tip:
Put rubbing alcohol on a cotton swab, rub on dry paint at the edge of the painting (obviously not the front 😄 , I always have paint splattered where it is not visible).  The cotton will be stain by the pigment if it is acrylic but not if oil. 

Unfortunately I don't know if this applies to WSO.
« Last Edit: November 07, 2017, 05:04:23 AM by Annie. »
Cheers, Annie
“We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light.”    ― Plato


liz

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Reply #8 on: November 07, 2017, 03:15:06 PM
 :thankyou: ANNIE, it's worth a try!  But then I remember now that I clean off my glass palette with rubbing alcohol, too!  ~Liz


Annie.

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Reply #9 on: November 09, 2017, 06:50:13 PM
Haha!  Liz.... that is the best clue  :clap:
Cheers, Annie
“We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light.”    ― Plato


 

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