Description : How To Make Waterproof Canvas
Last Answer : Materials: 3 cups soybean oil 1 1/2 coups turpentine Instructions: Mix 3 cups soybean oil (available from grocery or health food store) with 1 1/2 cups turpentine. Paint on and let dry. Reapply ... or two of hard use or outdoor exposure. This is great for tents, awnings and camping equipment.