Lead warning for Titanium White??

Ant Carlos · 05-28-2005, 12:49 PM

Garth,

I did not notice the different ratings of permanence before. Hmmm.
And they do tint differently as well. Mixed with cerulean Blue, a very strong color, the 2nd white did not show too shy. What do you think? Lead? If yes, then why didn't W&N simply add Lead Carbonate (PW1) in the pigments list?
I agree about the foto-documented forum

And it seems I posted this topic in the wrong forum, eh.. I didn't see the forum about paints-brushed before

Anyway, thank you for helping me on this.

Ant

Garth Herrick · 05-28-2005, 01:03 PM

Ant,

Did you see my over-the-top reply to Richard Budig's thread on Indian Red and Terra Rosa? I posted it yesterday. More info than you would ever want to know!

http://forum.portraitartist.com/showthread.php?t=5867

A warm color like Terra Rosa can be a good indicator of what is in the white. As you know, lead/flake white makes a much warmer tint than Titanium/Zinc does.

Garth

Ant Carlos · 05-29-2005, 11:11 AM

Hi Garth,

I read your reply to Richard. You did a very good job going into all those tests w/ images. Great info.

So I picked a Brown Earth and tested my whites' tinting. Flake White tints the warmer, indeed. But still I could come to no conclusion about the WN Warning label in the 2nd Tube of Tit White. It does seem to tint slightly warmer, but nothing of significance. Maybe only a difference in the vehicles, or, like you said, one tube to another. Where is the lead? You said they perhaps are milled in the same machinery as Cremnitz and Flake White, that's a possibility.

The pics bellow show my experiment. I used a Brazilian Brown Earth (which they named Sombra Queimada, translated "Burnt Umber" but we can see clearly that it has nothing to do with the Umbers we know). It almost matches the color of my wooden palette (made from Ip