Acid-Free Cellulose Fibers
Budget canvases use raw woods or unrefined synthetic papers containing high levels of lignin and acid. Over time, these acids cause paper to yellow, become brittle, and crack. Museum-grade cotton canvas is 100% acid-free and buffered with calcium carbonate to resist atmospheric oxidation.
Heavyweight 380+ GSM Substance
GSM (Grams per Square Meter) measures fabric density. While commercial budget prints use flimsy 200-240 GSM stock, Artforms canvases utilize robust 380+ GSM fabric capable of retaining tight structural tension without edge fraying or sagging.