Digital BW, The Print

Paul, you wrote:
>
> >I would also advise you to make sure the Hydrocote is stirred
> >very well.
> >...
> >... open the lid, stir it, get what you need out,
> >and then reseal the lid.
>
> I am down to near the bottom of the quart can of Hydrocote I first
> purchased, and I think I've noticed a  viscosity increase.  I now usually
> stir the PUR just before using, but admit that I have not always been so
> vigilant.  It may also be that the air in the can, with repeated openings,
> causes some viscosity increase.  At an rate, the symptoms I see are
streaks
> in the coating that were not there before.  It is the same type of
streaking
> I saw with Liquitex acrylic before I diluted it 3:1.

Is there any chance the viscosity increase is actually 'Hydrocote
polymerised' or just solids sinking / solvents evaporating ? One would
expect polymerisation to happen on top of the liquid of course.

Ernst