Rubber-Cal Pure Gum Rubber- 40A Durometer- Smooth Finish- Backing- 1/2-in Thick x 12-in Width x 12-in Length- Tan in the Rubber Sheets & Rolls department at Lowes.com
Food Grade Natural Gum Rubber Rolls and Sheet for Gaskets
Amazon.com: Rubber-Cal Pure Gum Rubber - Commerical Grade - 40A - Rubber Sheet - Tan Gum in Color - 1/16" Thick x 3ft Width x 8ft Length : Industrial & Scientific
OMEGAFLEX Natural Latex, Gum Rubber Tubing
Pure Gum Rubber Archives - Robbins Rubber
Amazon.com: Rubber Sheet, Natural Gum Rubber Width 36 in, Rubber Length 12 in, Rubber Thickness 3/8 in, 40A : Industrial & Scientific