Re: Art Boards Gesso + pumice + acorns(!)
Thanks! Some of the black is the effect of the scan (using a fully exposed / developed piece of glossy RC paper as reference black - for setting the black point I mean), the real print is slightly less contrasty / punchy -> but it's very close (hence, I didn't bother to fix it after the scan). So, don't feel bad about it! :) Besides, to my knowing, currently you're not using Fabriano -> I'm sure you'll give that it's a lot (big difference!) easier than Masa or aluminum sheets! Thanks, I also plan to look in construction shops since I learned that pumice powder is used for making high quality mortar and cement. Regards, Loris. 30 Ekim 2008, Perşembe, 9:26 pm tarihinde, Keith Gerling yazmış: > Nice! I like the simple elegance. I am very envious of your blacks. > Regardless of the pigment concentration I just cannot get a decent > black. It's starting to really tick me off. > > I'm totally confident that the pumice trick would work with any gesso. > Contrary to their claims, there doesn't seem to be anything > extraordinary about ArtBoard. In fact, I would imagine that pumice > added to clear acrylic medium would work as well. I bought my pumice > at a printing supply dealer. > > 2008/10/30 Loris Medici <mail@loris.medici.name>: >> Hi Keith, >> >> I will look for pumice powder this weekend, in order to try it with >> ordinary gesso... Have you used pumice powder with other brands of >> acrylic >> gesso before? I'm asking this to understand if this is a combined >> effect >> (ArtBoard gesso + pumice powder) or just the result of using pumice >> powder? >> >> BTW, see my latest print here: >> http://www.loris.medici.name/gum/acrons_03_ymc_sm.jpg >> Partial calibration; single curve for all colors (devised for magenta), >> stock yellow and magenta solutions, eyeballing cyan from tube... >> The horizontal bands are the effect of paper negative. (Unfortunately >> some >> sheets show that pattern.) Print size 7x10". >> >> There's considerably more staining than I'd like to have, but still >> works >> for me... >> >> >> 30 Ekim 2008, Perşembe, 1:48 am tarihinde, Keith Gerling yazmış: >>> I started adding things to this gesso today in an effort to give it >>> some tooth. Equal parts gesso and ground pumice, thinned with water, >>> gave me a plaster-like surface that was very absorbent. This is a >>> tri-color gum on an aluminum panel: >>> http://www.gumphoto.com/gessotest3.jpg Pretty bad. Murky and lacking >>> in contrast. (The surface isn't quite as grainy as it appears here) >>> The pigments did not stain, which kind of surprised me after watching >>> how the surface absorbed the emulsion. I'm going to try it again >>> tomorrow on a similar surface sized with hardened gelatin. >>> >>> Loris, you are off the hook with regards to sticking me with this >>> gesso. The results aren't great, but I think I might be able to >>> salvage something out of it. >>> >>> Keith
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