Size 1 Pure Gum Rubber Stoppers will plug bottles, lab vials and other openings. Pure Gum Rubber useful to 220º F and in applications with moderate chemicals, alocohols and organic acids. Do not use with strong acids, fats, grease or hydrocarbons. Not for food or beverage packaging applications.
Pure Gum Rubbber Stopper
I logged on to buy a rubber stopper, but when I saw the gum stoppers, it was clear that they would be perfect for a 19th century, glass ink well. Free shipping was fast.