Gamblin PVA Size is made from a pH neutral Polyvinyl Acetate Glue and distilled water. The size acts as a sealant for porous fibers of fabric or paper and isolates those fibers from your Gesso, Ground and oil colors. This protects the fibers from acid, making the surface archival.

Conservation scientists recommend painters use neutral pH PVA instead of rabbit skin glue. PVA Size provides a stable size layer that seals the canvas but does not swell or shrink like rabbit skin glue does. Over time, the repeated movement of rabbit skin size can cause an oil paint film on top to crack. This does not happen with PVA Size because the size does not re-absorb atmospheric moisture.

Only fabric and paper supports need sizing. Panel can withstand the acid in oil and may be prepared with just Gamblin Ground.

PVA Size is available in the following sizes: 8.5 fl oz, 33.8 fl oz.

A 8 fluid oz. bottle of PVA Size will cover about 10 square feet.