• All Molding Processes
  • All Rubber Parts
  • Compression Molding
  • Injection Molding
  • Mold Protective Coating
  • RIM Molding
  • Transfer Molding


  • EPDM
  • SBR
  • FKM
  • Polyurethanes
  • Butyl
  • Natural
  • ECO
  • Polyisoprene
  • Polychloroprene
  • Peroxide Cured Compounds
  • Organic Rubber Compounds
  • Nitrile
  • Ethylene / Acrylic


  • Water Based
  • Absence of mold buildup
  • Dry colorless clean nonoily film
  • Excellent adhesion to substrates
  • Good heat resistance and stability
  • High degree of slip
  • Multiple releases per application
  • No interference with post finishing
  • No transfer
  • Usable to 1000°F
  • Will not cause knit lines

MAC 860 Water Based Semi-Permanent Mold Release Agent


MAC-860 is a water based emulsion of a film forming resin that cures to form a clear, colorless coating with excellent release and antistick characteristics. It is intended for use as a release coating for molding rubber compounds including EPDM, NBR, SBR, polyurethanes, fluoroelastomers and fiber/resin composites, including epoxy, polyester, thermoplastic and thermoset resins and fiberglass laminates.

Technical Data:

  • Color and appearance..................Milky, white liquid
  • Dispersing medium......................Water
  • Specific gravity............................1.0
  • Weight per gallon (lbs.)................8.3

Application Method:

    MAC-860 should be applied as received or diluted with deionized water, to a clean, dry mold. Typical dilutions range from one to four parts deionized water to one part MAC-860. It can be applied to hot or cold molds, but preheating the mold to at least 200°F will facilitate evaporation of the water. Proper application of the release coating will help achieve the maximum number of releases per application. After cleaning the mold with a suitable solvent or an abrasive cleaner to remove previous release agents or other contamination, a finely atomized, light, even spray should be applied to the mold. After allowing the water to evaporate, a second coat should be applied. The mold should then be heated to 300°F or higher and held for at least five minutes to effect curing of the release film. For touch-up, MAC 860 should be sprayed as a fine mist to the hot mold.

Safety and Handling:

    The Material Safety Data Sheet should be reviewed before using MAC 860. None of the ingredients in MAC-860 is considered hazardous; however, good industrial practice suggests the use of safety glasses and gloves. Product should be protected from freezing. Container should be kept covered to prevent evaporation.


12 oz. Spray Can, Gallon Container, 5 Gallon Pail, 55 Gallon Drum


For expert technical assistance in selecting the optimum product to meet your specific requirements and to be convinced of the benefits of McLube lubricant coatings, we recommend you evaluate the appropriate product under your specific conditions. Samples and technical assistance are available, as well as custom formulations that suggest themselves for a specific application.