Cards that CAN and CANNOT be soaked?!

[frankbmd]

Originally Posted by Cardboard Junkie

absolute zero is just a theoretical point, like a singularity, it doesn't exist.

I don't want to argue with anyone. Soaking a card may improve its appearance but it will certainly change the ph level of the matter and increase its rate of degradation. That's why professional consevators add chemicals to their soaking solutions to stabilize the material, to prevent further and more rapid decay.
But why discuss this subject, it isn't about what you believe, it is about fact. Ask a professional if pencil/pen/marks can be erased without damaging the fibers. Ask if soaking a card is detrimental in the long run, (it is) Many times these marks can be removed without change to the naked eye. Under the proper the magnification and light, there will always be a trace.

One could argue that if changing the ph is one direction is harmful, then changing the ph is the other direction would be beneficial. I foresee an investment opportunity in litmus paper as collector's strive to optimize the ph of their collections. I have instructed my broker to look into:

Guangzhou Norm Scientific Instrument Co., Ltd
Shenzhen Yahee High Technologies Corp. Limited &
Hangzhou Liandong Import & Export Co., Ltd.

These are the big 3 litmus paper producers. Whatever happened to good old American Litmus?

I also think TPGs should measure ph and put it on the flip prior to encapsulation.