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Author Topic: Green - blue separating out  (Read 1212 times)

scribe

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on: May 22, 2013, 12:16:43 PM
I just finished the water reflection painting. In the upper left corner, the green separated as the painting dried. As a result, the blue really sticks out. I am not happy with this painting and will try it again tomorrow. Am not happy enough to post it on the web. This is not the only time this has happened. My painting of orchids did the same and some of my other mixes separated also. :(

I have stirred and stirred, but it doesn't seem to help. I am using two different brands of paint (trying to use up some old stuff I have around) :'(

I will post the orchid painting so you can see what is going on. Any and all suggestions will be gratefully accepted. :help:

Peggy


dennis

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Reply #1 on: May 22, 2013, 01:09:12 PM
Scribe, there are basically 2 types of pigments - chemical/dye and granulated (solids that have been very finely ground). When ever you use a granulated pigment, such as Ultramarine Blue, there is always the chance that they will separate to some degree. However, that is not always a bad thing as more than often they form very interesting patterns in the artwork. Many top artists use this characteristic to great advantage - specially when using rough paper.

A great tip is to get to know which of your colours are granulated and which are of the dye type.

A point to remember is that in cheap paints the solids have not been finely ground and will show up very quickly. In Quality paints the solids have been through the mill several times (hence the cost) and the result is that they do not settle out visibly as much.
You are what you THINK about - Napoleon Hill


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Reply #2 on: May 22, 2013, 01:15:52 PM
 :thankyou:Dennis, for the timely reply. I thought I was doing something wrong.  :thankyou:
Glad to know it is a quality of the pigment. I have used gouache for 20 years and haven't had this problem.
Peggy


Lillian

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Reply #3 on: May 22, 2013, 02:22:16 PM
Scribe, you think you had a problem?   :confused:   Your painting is gorgeous!!!   :clap:
Dennis gives such helpful information, huh? 
"The way to be happy," said Winston Churchill, "is to find something that requires the kind of perfection that's impossible to achieve and spend the rest of your life trying to achieve it."


Sarah (arch)

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Reply #4 on: May 22, 2013, 04:55:20 PM
I agree, Scribe. That is serendipity at its finest. I would be shooting for that kind of effect. Beautiful!
Sarah


dennis

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Reply #5 on: May 22, 2013, 08:33:25 PM
Scribe, you will never have this problem with gouache or oils because of the type of binder (opaque). Watercolours is a transparent medium.
« Last Edit: May 23, 2013, 02:00:47 AM by dennis »
You are what you THINK about - Napoleon Hill


Tony (ASM)

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Reply #6 on: May 22, 2013, 10:03:08 PM
What a great explanation by Dennis there!  :clap: :clap: That has actually answered a question relating to a similar situation using Inktense pencil 'Iris Blue' colour, that granulated on a test run for the sky on my Mouse picture!

 :thankyou:  Dennis  O0
''Don't spend life going forward in reverse, just glimpse the rear view mirror now and again then, focus on what lays ahead''.
(Tony. ASM 3rd July 2013)


 

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