by Heferkimbo » Fri Jul 07, 2017 4:26 pm
Ok guys, i need ideas, this is driving me crazy... I can't seem to get clear plates and i am being very very careful. The first time i didn't understand why i was getting those "black" spots after the ascorbic bath. But now i think it was because i failed to completely remove the silver soln. from the plate and after it dries, it leaves saturated areas with more silver that turn black from the ascorbic bath.
To avoid that problem, i started using a silicon spatula to remove any drop in the surface of the plate (instead of a ruler with a tissue), but they still fog. On some plates it's horrible, on others it is just around the edges. Will 10 minutes in cold running tap water (how cold?, ice cold?) as mentioned in the tutorial remove the fog or just reduce it?. I know veil coating will leave thicker areas in the bottom of the plate (i am careful to let the plate drip for 15 secs. and the place it in a flat surface), but why do they even get fog in the middle?. Will mold coating remove my fogging because of its very flat surface?
Here are some examples of the results i'm getting... the "a" plate is before the ascorbic bath and "b" is a different plate after the bath, as you can see there is fogging, but not as bad as "d". The "c" plate has it around the edges and a somewhat clear center. The last image are plates "c" and "d"... the fogging looks worse under the green light and the camera makes it even darker. You also have to consider that i have never seen a holographic plate before, should they look like the clear area in the middle of plate "c" under the green light?.
- IMG_1357 copy.jpg (1.69 MiB) Viewed 11929 times
- IMG_1362.JPG (784.51 KiB) Viewed 11929 times
I forgot to mention how it fogs: after the ascorbic bath the plates look very clear, they just become a bit darker (because it turns yellow right?). I then rinse them in DI water and remove the drops of water with the clean silicon spatula. The fogging/darkening begins after it starts to dry, around 5~7 minutes in.
The Ascorbic soln.:
-500ml DI water
-1.4 gr. Sodium Hydoxide
-10 gr. Vitamin C*
*purchased from
Amazon "Vitamin C (L-ascorbic acid)"
Any help will be greatly appreciated... no matter how many times i try, the fogging is always there. So far i have only 1 clear plate with ony fog whatsoever. 1/30 plates so far is BAD!
Ok guys, i need ideas, this is driving me crazy... I can't seem to get clear plates and i am being very very careful. The first time i didn't understand why i was getting those "black" spots after the ascorbic bath. But now i think it was because i failed to completely remove the silver soln. from the plate and after it dries, it leaves saturated areas with more silver that turn black from the ascorbic bath.
To avoid that problem, i started using a silicon spatula to remove any drop in the surface of the plate (instead of a ruler with a tissue), but they still fog. On some plates it's horrible, on others it is just around the edges. Will 10 minutes in cold running tap water (how cold?, ice cold?) as mentioned in the tutorial remove the fog or just reduce it?. I know veil coating will leave thicker areas in the bottom of the plate (i am careful to let the plate drip for 15 secs. and the place it in a flat surface), but why do they even get fog in the middle?. Will mold coating remove my fogging because of its very flat surface?
Here are some examples of the results i'm getting... the "a" plate is before the ascorbic bath and "b" is a different plate after the bath, as you can see there is fogging, but not as bad as "d". The "c" plate has it around the edges and a somewhat clear center. The last image are plates "c" and "d"... the fogging looks worse under the green light and the camera makes it even darker. You also have to consider that i have never seen a holographic plate before, should they look like the clear area in the middle of plate "c" under the green light?.
[attachment=1]IMG_1357 copy.jpg[/attachment]
[attachment=0]IMG_1362.JPG[/attachment]
I forgot to mention how it fogs: after the ascorbic bath the plates look very clear, they just become a bit darker (because it turns yellow right?). I then rinse them in DI water and remove the drops of water with the clean silicon spatula. The fogging/darkening begins after it starts to dry, around 5~7 minutes in.
The Ascorbic soln.:
-500ml DI water
-1.4 gr. Sodium Hydoxide
-10 gr. Vitamin C*
*purchased from [url=https://www.amazon.co.jp/gp/product/B0031J8ARC/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1]Amazon[/url] "Vitamin C (L-ascorbic acid)"
Any help will be greatly appreciated... no matter how many times i try, the fogging is always there. So far i have only 1 clear plate with ony fog whatsoever. 1/30 plates so far is BAD!