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Old 02-22-2012, 10:37 PM
shirleya shirleya is offline
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Whites

What is the difference between the various whites that are available-eg Titanium white, Zinc white etc...?
When would one use Unbleached Titanium?
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Old 02-23-2012, 02:32 AM
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Re: Whites

Titanium is more opaque and chemically stable then others. Zinc White is transparent, cool white but also can react with atmospheric moisture and carbon dioxide forms Zinc Carbonate and because of this can make a brittle film when painted thickly.
Therefore Zinc-Titanium white composition is often better.
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Old 02-23-2012, 08:38 AM
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Einion Einion is offline
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Hi, welcome to the forum. A good general tip, it's usually worth trying a search where there might be existing threads on the same subject (as we ask in the starting tips thread ) as this can net you answers immediately, without having to wait for replies.

In this case there are a number of prior threads on whites, at least eight, here in Colour Theory, as well as a number in the forums specific to the medium you're using - I presume since you're asking about white that you're using oils and/or acrylics?

In relation to Unbleached Titanium, that would be used in various ways by different people but it can be used in place of white as a general lightener, yielding more subdued, slightly greyer mixes.

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Old 02-23-2012, 04:10 PM
llawrence llawrence is offline
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Re: Whites

Quote:
Originally Posted by shirleya
When would one use Unbleached Titanium?
Unbleached titanium can actually be pretty useful for skin tones, I found some time back. I haven't used it for a while, having become completely enamored of lead white; but I plan to at some point reintroduce it to my palette.
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Old 02-23-2012, 07:25 PM
sidbledsoe sidbledsoe is offline
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Re: Whites

Gamblin has a good page of info on whites for a start.
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Old 02-24-2012, 05:39 AM
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Re: Whites

Quote:
Unbleached Titanium, that would be used in various ways by different people but it can be used in place of white as a general lightener, yielding more subdued, slightly greyer mixes.

I have a friend who uses Unbleached titanium for precisely this reason. Her work is all soft tones with a vintage look and for "white" in the settings she uses unbleached titanium so it seems aged.

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Old 03-07-2012, 07:28 PM
shirleya shirleya is offline
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Re: Whites

thank you-going to look at the color theory thread.
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Old 03-07-2012, 07:57 PM
Mythrill Mythrill is offline
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Re: Whites

Quote:
Originally Posted by Einion
In this case there are a number of prior threads on whites, at least eight, here in Colour Theory, as well as a number in the forums specific to the medium you're using - I presume since you're asking about white that you're using oils and/or acrylics?

Einion, I believe zinc white isn't compatible with acrylics. So far, I haven't seen any brand that sells it. The closest I've seen to a transparent white in acrylics is Winsor & Newton's "Mixing white", which only has Titanium.

Quote:
Originally Posted by Einion
In relation to Unbleached Titanium, that would be used in various ways by different people but it can be used in place of white as a general lightener, yielding more subdued, slightly greyer mixes.
Einion

Tell me about it! Phtalo blue (green shade) + Buff titanium = a beatiful, somewhat opaque turquoise. I get some nice "pastel" colors from it, too. I'd rather get a mix though (it can be achieved using raw umber light + titanium white), because "unbleached" is actually heated up Titanium white that reverts back to its white color over time.

Last edited by Mythrill : 03-07-2012 at 08:01 PM.
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Old 03-08-2012, 02:53 AM
llawrence llawrence is offline
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Re: Whites

Quote:
Originally Posted by Mythrill
because "unbleached" is actually heated up Titanium white that reverts back to its white color over time.
There are unbleached titanium whites that are simply less-processed than the bright white pigment, and still contain a portion of natural iron oxide, dulling the color. Other brands actually mix in a little iron oxide into the bright white pigment to get a similar color.

I've read about the heating thing here and there, but I don't know anything about it. I'm not sure why anyone would take the trouble to do that when they could just mix in a little iron oxide and be done with it.
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Old 03-08-2012, 09:58 AM
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Quote:
Originally Posted by Mythrill
Einion, I believe zinc white isn't compatible with acrylics. So far, I haven't seen any brand that sells it.
Fairly widely available in acrylics today - Golden, Liquitex, D-R, Blick's house brand, Tri-Art.

Quote:
Originally Posted by Mythrill
The closest I've seen to a transparent white in acrylics is Winsor & Newton's "Mixing white", which only has Titanium.
Their Mixing Whites in acrylic used to be made from Zinc White.

Einion
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Old 03-08-2012, 12:29 PM
Mythrill Mythrill is offline
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Re: Whites

Quote:
Originally Posted by Einion
Fairly widely available in acrylics today - Golden, Liquitex, D-R, Blick's house brand, Tri-Art.


Their Mixing Whites in acrylic used to be made from Zinc White.

Einion

Oh, true! We can buy Zinc White in acrylics! I haven't noticed this before. Do they have the same delamination problems they do in oils?

About Winsor & Newton, I didn't know about that. All I know is that I have a tube from the old brand, and it doesn't list Zinc White. Their new Artists' Acrylics line doesn't list it, either.

Last edited by Mythrill : 03-08-2012 at 12:34 PM.
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Old 03-09-2012, 12:21 PM
maleaco maleaco is offline
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Re: Whites

Why isent Zinc white compatible with acrylics?
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Old 03-12-2012, 10:25 AM
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Quote:
Originally Posted by maleaco
Why isent Zinc white compatible with acrylics?
See post #10

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