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Prevent Demolding with Mold Release Sealers

While you may be using a mold release agent to prevent demolding issues, such as sticking and part appearance, you could be missing an important step if you’re not using a mold sealer first.

The reason? Molds expand and contract during the thermal changes of each production cycle, causing extremely small cracks to form. Eventually the resin begins to penetrate these cracks, resulting in part and mold damage.

Properly sealing your molds before applying a mold release agent creates a protective barrier, bonding to the mold surface, filling in the microporosity, and providing an ideal surface for mold release bonding.

At Stoner Molding Solutions, we’ve developed a variety of mold sealers for a wide range of production applications.

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Stoner's mold sealers are available in many sizes and application types.

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Why Stoner Mold Sealers?

At Stoner Molding Solutions we offer a full line of mold sealers designed for the thermoplastics, polyurethane, composites, and rubber industries.

Every Stoner formulation is designed to optimize your production process and significantly improve your bottom line. Stoner’s PhD chemists and molding experts are here to support your manufacturing efforts, consulting with you about your specific processes to find solutions customized for your needs.

Our mold sealers:

  • Are specifically formulated to improve release, providing longer mold life
  • Designed to form an effective barrier between your tool surface and molding materials to prevent hazing
  • Formulated to work with your mold release agent as an effective primer

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Our industry-leading experts, chemists, and engineers are here to listen and provide honest value. We’ll help you troubleshoot your process and recommend the right products for your needs. We can even work with you to create custom formulations tailored to meet your production requirements.

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Plastics Mold Release

Looking for mold release agents for plastics, including the injection molding, rotational molding, thermoforming, or blow molding industry?

Stoner Molding Solutions offers products for paintable and specialized applications including dry films, Zinc stearates, and thermosets including:

  • Conventional (or sacrificial) coatings, both silicone and silicone-free formulas
  • TraSys® line of semi-permanent, water-based mold release solution designed specifically for the rotational molding industry
  • Mold release dispersions and sprays including VOC-free, silicone-free, PTFE, or fluorochemical options

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Rubber Mold Release

Need a mold release agent for natural or synthetic rubbers? With more than 75 years of experience in the rubber release field, Stoner pioneered tire mold releases in 1942 to keep factories running longer, with better results and less downtime.

Since then we’ve developed many rubber mold release agents designed to protect mold surfaces from the most abrasive rubbers and effectively increase mold life span.

Our rubber mold release product line currently includes:

  • Sacrificial Molding Solutions
  • Semi-Permanent Molding Solutions
  • Silicone-Free Molding Solutions
  • Mandrel-Built Hose Molding Solutions
  • Tire Molding Solutions

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Polyurethane foam and cast elastomers have become the material of choice in today’s automotive products, commercial insulation, and many other growing industries. Stoner Molding Solutions is proud to offer innovative mold release agents for these products, designed to prevent build up and produce a superior finish surface.

Reduces buildup, cuts cleaning time, and reduces wasted product, improving productivity and the bottom line. We offer release agents for glossy, matte, and satin finishes for a variety of applications including:

  • Cast Elastomer
  • Flexible and Rigid Molded Foam
  • Polyiso Insulation
  • Recycled Rubber

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Looking for mold release coatings and agents for synthetic composite materials?

Stoner Molding Solutions is the world leader in composite release agents with solutions for water and solvent-based sacrificial releases, water-based releases for compression molding, and an excellent line of solvent-based semi-permanents. Stoner also carries an extensive line of paste wax mold release, including Honey Wax® and Miracle Gloss® M8.

Our composite products help make everything from massive wind turbines that power the future, to boat hulls and automotive parts made from space-age materials like carbon fiber. With more than 75 years of experience in the mold release industry, our experts can find the right combination of releases and sealers that will maximize your production and profits.

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Unlike many mold release brands, Stoner Molding Solutions formulates, manufactures, and distributes our own products. Check out our full line of mold releases, sealers, cleaners, rust preventatives, and lubricants. In stock products are ready to ship now!

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