Mold releases and release agents are film-forming lubricating oils, solid lubricants, waxes, or fluids that prevent other materials from sticking or adhering to an underlying surface. Unlike permanent non-stick coatings, release agents typically require replenishment and are non-curing. Chemical companies are the main suppliers and manufacturers of mold releases and release agents; however, some mold manufacturers supply specialized or proprietary mold release and release agents that are designed for their products.

There are two basic types of mold releases and release agents: non-permanent and semi-permanent. Non-permanent products may require re-application after each use, usually in the form of a mold release spray. Semi-permanent mold releases and release agents are sensitive to moisture and other chemicals. A release agent’s material safety data sheet (MSDS) lists chemical properties and includes special instructions for disposal and/or handling. Suppliers of an intermediate mold release can provide additional information about how a semi-permanent mold release or release agent interacts with other chemicals. 

Selecting mold releases and release agents requires an analysis of product chemistries. The most popular mold release agent is a mold release coating called Teflon, a registered trademark of DuPont. Teflon is based on polytetrafluoroethylene (PTFE), a type of fluorinated thermoplastic with outstanding chemical resistance and excellent lubricity. Teflon mold release coatings can be baked into a mold or sprayed on in several layers. These coatings have a long life and rarely require re-application. Other mold release agents use different chemistries. For example, a rubber mold release agent is a water-based or wax-based reactive solution that is designed to cure on molds and provide an inert release film.

Selecting a mold release or mold release agent requires an analysis of mold materials and mold-making techniques. Mold releases and release agents can be used with molds that are made of plaster, rubber, plastic, stone, fiberglass, or various metallic elements and alloys. Common mold manufacturing techniques include transfer molding, compression molding, injection molding, liquid injection molding, proprietary bonding, CNC machining, heat sealing, and vacuum-forming.


Related Products & Services

  • Heat Transfer Fluids and Thermal Oils

    Heat transfer fluids, thermal oils, circulating coolants, and heater liquids are used to carry thermal energy in process heating and machine cooling applications.

  • Hydraulic Oils and Transmission Fluids

    Hydraulic oils and transmission fluids are used to transmit power in hydraulic equipment and power transmission applications.

  • Industrial Greases

    Industrial greases are thickened gels that consist of natural, synthetic, or semi-synthetic substances. They do not run off surfaces and are used in a variety of lubrication, sealing, and exclusion applications.

  • Industrial Lubricants

    Industrial lubricants are oils, fluids, greases and other compounds designed to reduce friction, binding or wear and exclude moisture. Specialized characteristics may enhance thermal conduction across thermal interfaces or reduce electrical resistivity across electrical joints.

  • Metalworking Lubricants, Coolants, and Fluids

    Metalworking lubricants, coolants and fluids are specialized coatings and carriers for metal forming, metal cutting, lapping, polishing, and grinding applications.

  • Solid and Dry Film Lubricants

    Solid and dry film lubricants form a dry layer or coating that excludes moisture and reduces friction, binding, and wear. They often contain additives such as corrosion, oxidation, and rust inhibitors.

  • Synthetic Oils, Greases, and Lubricants

    Synthetic oils, greases and lubricants are based on synthetic compounds such as silicone, polyglycol, esters, digesters, chlorofluorocarbons (CFCs) and mixtures of synthetic fluids and water.