The real deal, solvent based Guttas made from Gutta Percha or other natural rubber. For experienced silk painters, Guttas hold the line far better for the Serti Technique than any water based resist. Clear Guttas must be dry cleaned out to be removed. Colored or metallic Guttas are left on the fabric. So, if they hold the line better, what are the drawbacks? Well, the hassle of dry cleaning and finding a dry cleaner who will do it (find one who will charge you by the load or by the lb., and who still uses "Perc" - we don't know yet if the newer dry cleaning fluids work) , also the fumes as they are solvent based. Work in a well ventilated area!
Gutta generally has around a 6 month shelf life, especially the colored ones, which can be prolonged by storing in a cool dark place. Heat and light break it down and shorten the shelf life.
Note: Because they are flammable and due to US federal fire regulations, Solvent Based Guttas can ONLY be shipped by UPS ground to the 48 mainland states. See our Water Based Resists for other options.