Applications:

  • Composite Molding

Materials:

  • Thermosets
  • Thermoplastics
  • Polyester resins
  • Epoxy
  • TPU

Properties:

  • Solvent Based
  • Chemically inert
  • Dries clear / colorless
  • Easy to apply
  • Easy touch-up
  • Excellent lubricity
  • Excellent release properties
  • Fast air cure
  • Gloss finish
  • Low coefficient of friction
  • Multiple releases
  • No pre-release
  • No transfer
  • Room temperature cure
  • Thermally stable (600ºF)

MAC 1038 Semi-permanent mold sealer and release

Description:

MAC-1038 is a dual purpose, two-in-one, semi-permanent mold sealer and release product designed to provide enhanced surface finish and excellent release characteristics for composite molded parts and materials. Product will cure at room temperature to provide a durable, dry, colorless chemically bonded film coating that is inert and thermally stable. Suitable for use with epoxies (thermosets and prepregs), phenolic, polyester and thermoplastic compounds.

Technical Data:

  • Color and appearance.................................Clear liquid
  • Diluent......................................................Heptane
  • Specific gravity...........................................0.7
  • Weight per gallon (lbs.)...............................5.9

Application Method:

  • For best results, mold surface should be cleaned thoroughly. Previously used release products (waxes, silicones, oils, etc.) and sealers should be completely removed before application. MAC-1038 can also be used over other semi-permanent release products without removing.
  • The product should be applied by spraying, brushing or wiping with a clean, dry, lint-free cloth so that a thin, wet, continuous film is deposited. Initially, apply two to three base coats, allowing five minutes between coats for solvent evaporation. After the final coat is applied, allow at least 30 minutes for the coating to cure. Curing can be accelerated by heating the mold for five minutes at 250ºF.
  • Note: The drying/curing times will be dependent on ambient temperature and humidity.
  • For best results the mold should be re-coated after the first two to three pulls. Additional coats may be applied as touch-up to increase the coating longevity.

Safety and Handling:

    The Safety Data Sheet, which accompanies each shipment, should be reviewed before using MAC-1038. MAC-1038 vaporizes when applying the product. MAC-1038 has a low order of toxicity. Care should be taken that good industrial hygiene practices are observed when using the product. Products contain flammable solvents that should be stored in a cool, dry environment.

Availability

MAC-1038 is available in a one, five and 55-gallon drum containers.

Important:

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.