Military surplus paste mixture of silicone, waxes and mineral oil that acts as a moistureproof water barrier when applied to substrates such as leather, vinyl, boots, tents, saddles, gun scabbards, wood, cloth, etc.. We sell it also as an effective mold release when applied to rocket motor tooling (spindle and rams) or mold surfaces to prevent propellants and other castables from sticking for easy removal. Military Preservative & Mold Release Paste- 4 oz Tin