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Titanium
08-24-2001, 03:11 PM
In case anyone wants to know -

3 panes of glass - all coated in 1 inch wide , 6 inch
long paint strips .

Paint applied was made from W and N alkali processed
oil sun thickened until cold honey thick and pigment.

Paint was thinned with Mineral Spirits for flowing
application.

Drying paint took from 12 hrs to 2 days [ Zn0/Ti02 mix ]

To run a standard -

[1 ] A coat of alkali processed oil .
[ 2 ] a coat of alkali processed oil with 20 % Zn0 by weight
and 80 % Ti02 DuPont's 902 by weight.

902 is used for interior and exterior applications .

Mulled in Sun-thickened alkali Processed Oil

[ 3 ] 20 % Zn0 by weight - 80 % Ti02 Dupont 902
[ 4 ] 100 % Tio2 Dupont 902
[ 5 ] Mars Yellow Light
[ 6 ] Blanc Fixe
[ 7 ] Irgazine Scarlet
[ 8 ] Zirconium Blue [ Kremer ]


[ 9 ]Intense Yellow [ Kremer ]
[ a ] Mulled sun -thickened alkali processed .
[ b ] Mulled in Home extracted sun-thickened walnut oil .

[ 10 ] A coat of Sun -thickened Alkali processed linseed oil.

3 panes of glass - all dried in normal light
1/4/01 [ April fools day ]
Placed in
[ 1 ] A dark cupboard
[ 2 ] Normal room near a western window
[ 3 ] Direct Tropical sun , all day and night .

Failing date [ chalking , etc ]

[ 8 ] Zirconium Blue ------ 20 / 05 / 01

[ 4 ] 100 % Ti02 Dupont 902 ------- 1 / 06 / 01

[ 1 ] 100 % Alkali processed oil ----- rain washed off
of glass 7 / 07 / 01

25 / 07 / 01 rest failed save for -------------- [ 2 ] and [ 3 ]
The Zn0 /Ti02 mixes .
[ this result has repeated itself in Artisan Linseed oil with
the same white mix ]

****Note the Walnut Sun-thickened lasted as well as the
Alkali sun-thickened stuff .

1 / 08 / 01 - No change in the room glass pane
The cupboard glass pane has gone yellow .

24 / 09 / 01 - Slow decay continues .
no change in [2 ] and [ 3 ]

Tests will be repeated same time next year but with
Stand Oil as the binder .

Titanium

shawn gibson
08-24-2001, 04:04 PM
As usual, Titanium, something to reflect on for years. Thanks so much for posting this. Nothing beats a real test:)

Will repond in depth on Monday...Have a great weekend everyone!!!
shawn:)

Verdaccio
08-24-2001, 10:00 PM
Kim:

I have printed it and studied it several times. Hopefully I will eventually understand it all. In the meantime, a couple of questions?

Did you sun thicken the oil yourself?
Did the cupboard sample clear up when placed in normal light?

Titanium
08-24-2001, 11:08 PM
Michael ,

yes , I have been sun-thickening my own
linseed , walnut and sunflower oils for a
while now .

I must say I got the best results with
the W and N alkali and my own home extracted
walnut oil .
The cold pressed sun thickened stuff went to
Amber Red , as did my home extracted linseed
oil and more importantly did not dry as fast or as
tack free .

Now that I know the walnut works , I can go
back to learning how to use the stuff properly.

The cupboard glass will see the light of day
next April fools day . The idea being to see if
over a few days , the yellowing will bleach out.

If your wondering what I am doing , see a 3rd
Edition of Ralph Mayer page 219 to 220 .

The gloss of this paint is really beautiful .
Titanium

Verdaccio
08-25-2001, 12:20 AM
Originally posted by Titanium
Michael ,

yes , I have been sun-thickening my own
linseed , walnut and sunflower oils for a
while now .

Titanium

How? What process, containers, duration, materials, etc.?

Titanium
08-25-2001, 06:30 AM
Michael ,

you need to read Doerner , and Mayer .

There are two ways to do it , one is lead using ,
the other lead free .

Please get a copy of each book , decide what
you want to do and then get back to me.

The Doerner has more information on painting
techniques , that I believe you would enjoy
reading up on and discussing.
Titanium

Verdaccio
08-25-2001, 09:41 AM
Originally posted by Titanium
Michael ,

you need to read Doerner , and Mayer .

There are two ways to do it , one is lead using ,
the other lead free .

Please get a copy of each book , decide what
you want to do and then get back to me.

The Doerner has more information on painting
techniques , that I believe you would enjoy
reading up on and discussing.
Titanium

Ah how fortunate! I just bought a Meyer book last week! I will look for the Doerner book at the bookstore - any clues as to if it is still available?