Re: My own PVA glue sizing experience (attn: marek + the gum woesagain)
while it probably is a lot of pigment, i've been doing my test for stain with the same pigment and ratio.
it was almost always 5ml gum + 5ml pot-di sat. + 1gr of iron oxide black powder.
and this is how it printed last week: same mix, same size, same paper (i've already posted it), even the same exposure time.
there is definitely something else going on, that i just can't put my finger on.
and i don't usually keep my mixed solutions for longer, but i coated the first test strip yesterday and kept the rest for a little later. then something else came up and all was delayed until the next day. i've kept mixed solutions for a few days (stored in the dark) before and while there might be small differences in behaviour (i never really checked with a step wedge), they usually print more or less fine.
it's good to hear that your pva works better than the caparol. so there is hope with the substance.
Loris Medici schrieb: