what is the difference....

[Charlie Lyman]

between stain absorb
http://interlinksupply.com/index.php?item_num=CST10QT

and wet poultice from Stone Pro?
http://www.stoneproonline.com/Wet-Poultice-51-59-prod.htm

Is there a difference in what it does? Is there a different application for each one?

 

[Cameron DeMille]

I have been making my own poultices for years, as they seem to work much better than the pre mixed ones. However I have recently started using the Stone Pro one and it has removed some pretty tricky things I couldn't get out otherwise.

I don't know anything about the Interlink one, but the Stone Pro one is worth trying. I was able to remove some back oxidation from wood screws in white limestone after a flood. I tried bleach, grinding and a few other things. This stuff took it out overnight.