Does sizing content vary with sheet size? I've had good results making palladium prints on the 22x30 white and when I tried the 30x44 white the results were drastically different. Has the pulp recipe changed or manufacturing process altered in the last 5 years? The 22x30 paper that yielded good results was old stock and 30x44 sheets were new. There is only a 5 gram weight difference between the 2 sizes.
The answer to your first question is no – sizing should be consistent across the surface regardless of any sheet size. The two sizes are made at the same time and just cut into different size sheets. There should be no difference.
I am pretty familiar with the palladium & platinum printing process and can’t honestly tell you why you would be getting a different result from one size to the other. These Stonehenge papers are machine-made and you will get variances from one paper making run to the next, understanding that paper mills work within tolerances for every characteristic: sizing, basis weight, finish, color, etc.
That said I will make a suggestion – I created Stonehenge in 1974 and not for the purpose of printing palladium or platinum prints, it was more suited for traditional printmaking and all drawing techniques. The paper has calcium carbonate (buffering) as part of the furnish and so I am told by the many elite platinum printers I know well, any buffering in the sheet is a negative to achieving positive printing results. Knowing that the print has to be cleared through acid solutions the calcium in the paper and the acid in the bath combat one another. There are other paper options that might work better for you. I will contact you separately to get some more information.
I am pretty familiar with the palladium & platinum printing process and can’t honestly tell you why you would be getting a different result from one size to the other. These Stonehenge papers are machine-made and you will get variances from one paper making run to the next, understanding that paper mills work within tolerances for every characteristic: sizing, basis weight, finish, color, etc.
That said I will make a suggestion – I created Stonehenge in 1974 and not for the purpose of printing palladium or platinum prints, it was more suited for traditional printmaking and all drawing techniques. The paper has calcium carbonate (buffering) as part of the furnish and so I am told by the many elite platinum printers I know well, any buffering in the sheet is a negative to achieving positive printing results. Knowing that the print has to be cleared through acid solutions the calcium in the paper and the acid in the bath combat one another. There are other paper options that might work better for you. I will contact you separately to get some more information.
- michael