Materials research: Sizing and acrylci mediums as sizing

MDF panels and size

Panels (and a note on latex paint on the back-side of a panel for shrinkage evening)

PVA size gamblin-- try this
Gamblin PVA Size diluted with distilled water is a contemporary size for fabric support. Conservation scientists recommend painters use neutral pH PVA size on linen and canvas instead of rabbit skin glue. PVA (Poly Vinyl Acetate) seals the fabric but does not re-absorb atmospheric moisture, preventing the size layer from swelling and shrinking. It has a neutral pH and does not yellow, plus it retains its flexibility, does not emit harmful volatiles, and protects fabric from the ground. PVA does not tighten the fabric like rabbit skin glue, so stretch fabric tightly.

primer vs size.

prior research has indicated (though i cannot find those sources and they're veyr muddled and hard to find) that acrylic gel mediums are made with gac, esp gac 100? and that they are reasonably useful as sizes for canvas. my own expirementation has yuelded fairly positive results re: that. scrap-bookers use it/PVA ph-neutral archival glues to make books with, and theoretically might yield archival results?

not sure if they preserve the lightfast nature of colors in said cloths; more information forthcoming.

discussion of various sizing and gessos, mostly rehash

in my experience gesso alone has led to cracking, prior to sizing both sides of a wood panel.

consider spraying surface with fixative when done painting to rpevent acrylic-gel-treated surfaces from sticking to each other and causing problems.