Sennelier’s Gum Arabic is sourced from the finest gum that Kordofan in Sudan has to offer. It is retained in its raw natural state. The large chunks should be dissolved in cold water slowly and gently in order to preserve the gum’s maximum binding strength. The solution should be stirred frequently during the dissolving process. Once dissolved, a solution very rich in resin is obtained. Gum Arabic is an ideal binder for gouache and watercolour.