• Composite Molding


  • Polyester
  • Thermoplastic Resins
  • Thermoset Resins
  • Fiber / Resin Composites
  • Epoxy / Fiber Composites


  • Water Based
  • Absence of mold buildup
  • Excellent adhesion to substrates
  • High degree of slip
  • Multiple releases per application
  • No interference with post finishing
  • No transfer
  • Non-oily
  • Thermally stable to 1000ºF
  • Will not cause knit lines

MAC 973 - Quick-dry Release for Composites


MAC-973 is a water-based emulsion of resin that will cure to form a clear, colorless release coating. Can cure at low temperatures and dries faster than most standard release agents. Effective with epoxy, polyester, thermoplastic, thermoset resins and fiberglass laminates.

Technical Data:

  • Color and appearance - Translucent, milky-white liquid
  • Dispersing medium - Water
  • Specific gravity - 1.0
  • Weight per gallon (lbs.) - 8.32

Application Method:

    MAC-973 should be applied as received to a clean, dry surface. No dilution is required. MAC-973 should be applied to a hot mold (200ºF or higher) to facilitate evaporation. Proper application of the release coating is critical to achieve the maximum number of releases per application. The mold should be cleaned with a suitable solvent or abrasive cleaner to remove previous release coatings and material contamination. McLube Mold Cleaner may be used. Spray or wipe the product onto the desired surface and apply two coats for new machinery. Coat the entire surface to be treated but do not over apply. Reapplication rates will vary by process and material.

Safety and Handling:

    The Safety Data Sheet for MAC-973 should be reviewed before using the product. None of the ingredients in MAC-973 are considered hazardous; good industrial practices suggest the use of safety glasses and gloves. KEEP FROM FREEZING. Cover the product container to prevent contamination or evaporation.


1G, 5-gallon pail, 55-gallon drum, 275-gallon tote


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.