CRC EXTREME DUTY OPEN GEAR AND CHAIN LUBE 12 WT OZ, AEROSOL, PETROLEUM OIL, BLACK A TOUGH, TACKY, SOLID FILM LUBRICANT USED FOR REDUCING FRICTION AND WEAR. PROVIDES MAXIMUM LUBRICATION AND SHOCK PROTECTION, REDUCES GEAR NOISE, PREVENTS SCORING AND WELDING OF GEAR TEETH. THIS HEAVY-DUTY COMPOUND IS SPECIALLY PREPARED TO PENETRATE PORES OF METAL, WITH EXCEPTIONAL “STAY-PUT” CHARACTERISTICS.