Re: New Gloy = Bakerex & PVA Criteria for making gum prints.

It has been the practice for many years to relate viscosity to specific
gravity measurements as a guide. .I do not propose to argue with that practice. My
comment that the practice is sufficient for our purpose remains true

I  remain unconvinced that its strict accuracy is relevant.

What would be helpful is some advice, based upon practical experience, as to
which of the many PVAs available to us is likely to serve our purpose best. I
Ihave been advised by a chemist with an international reputation,whose
practical knowledge and understanding has earned my respect,, that it does not really
matter much.

We come back to my earlier advice, find the best at the least cost.

Terry

terry

Terry

In a message dated 29/3/06 7:50:38 pm, rs@silvergrain.org writes:

> Terry, you previously said viscosity measurement is sufficiently
> related to, and can be substituted with, specific gravity measurement,
> and I pointed out that that isn't the case. If you like to escape to
> an argument "all those are irrelevant to making a good enough print"
> at the end, I suggest you don't make such an inaccurate statement that
> is highly vulnerable to begin with. Making good prints and seeking
> truth are two different goals, of many other goals people may have.
>
>
Received on Wed Mar 29 13:14:00 2006