High vacuum pressure waterproof watch case sealant prevents leakage of moisture in to the case due to worn gaskets. Will not evaporate, vaporize, harden, or break down, and will not affect watch oils. Unaffected by temperatures from minus 280° F to 435° F (138° C to 224° C) or by moisture, salts, acids, fungi, alkali, or sweat. Contains 8 grams.
