Applications:

  • Rigid Mandrel Lubricant

Materials:

  • EPDM
  • HNBR
  • SBR
  • CPE
  • FKM
  • Organic Compounds
  • Synthetic Compounds
  • Nitrile
  • Neoprene

Properties:

  • Water Based
  • Allows for excellent coupling retention
  • Allows long lengths of hose to be ejected
  • Colorless nonoily coating
  • Prevents adhesion of the tube to the mandrel surface
  • Will bond to the applied surface
  • Will not adversely affect adhesion of tube reinforcement and cover compound
  • Will not produce pitted tube problems
  • Will not transfer or contaminate tube compounds

MAC 746 Water Based PTFE Rigid Mandrel Lubricant

Description:

MAC-746 is a water extendable emulsion of a PTFE/ resin mixture designed for use as a mandrel lubricant for flexible EPDM, nylon, and polypropylene mandrels. This product represents a safe and economically attractive replacement for conventional solvent based mandrel lubricants. It will provide excellent anti-stick properties and a low coefficient of friction necessary for proper mandrel ejection.

Technical Data:

  • Color and appearance................Translucent dispersion
  • Dispersing medium....................Water
  • Specific gravity..........................1.03
  • Weight per gallon (lbs.)..............8.6

Application Method:

    MAC-746 is intended to be applied as received to clean, dry mandrel surfaces. Dilutions with water are possible depending upon the method of application and specific process characteristics of the hose compound and construction. Start with a clean, dry mandrel. All previously used mandrel lubricants and any compound residue should be removed by an appropriate method. McLube Mold Cleaner may be used. Application of MAC-746 can be accomplished by spraying, wiping, dipping or flow coating a thin, even film over the entire mandrel surface. For previously uncoated mandrels two coats should be applied. Once the mandrel has cycled through the system once, only one coating need be applied. A coating of MAC-746 will dry in 10 to 30 minutes, depending upon the application technique used. Spraying the product will speed up the drying time. External heat sources can be used to further facilitate drying. Although it is recommended that MAC-746 be dry prior to tubing, some manufacturers are tubing immediately with no adverse effects. The specific processing characteristics of the tube compound and the hose constructions used will influence the need to dry the coating.

Safety and Handling:

    The Material Safety Data Sheet should be reviewed prior to use of MAC-746. The solid active ingredients in MAC-746 are essentially nontoxic, but heating above 550ºF may result in the formation of potentially harmful substances. Smoking should not be permitted while using the product and contamination of tobacco products with MAC-746 should be avoided. Safety glasses and gloves are recommended when using this product.

Availability

Gallon Container, 5 Gallon Pail, 55 Gallon Drum, 275 Gallon Totes.

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.