Rotational Molding


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Process Help

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McLube® offers a variety of release agents for rotational molding designed to give you greater control of your process with tailored slip coefficients and specialty formulations for every type of rotomolded part. Our line of rotomolding release coatings includes water and solvent-based options to suit any roto process, including semi-permanent release agents as well as conventional coatings for touchup in difficult areas. McLube® Technical Representatives have years of experience solving the most complex rotomolding challenges with programmed release technology and meticulously planned application methods. Continue reading for more information and a list of featured products or contact McLube® today for process assistance and samples.

Details & Benefits


Prerelease and Warpage Issues?

McLube’s rotomolding release agents create a thin, even film along the mold wall delicate enough to mimic the substrate but durable enough to resist abrasion. We analyze the unique relationship that exists between every customer’s material and mold to provide a release agent that offers enough slip for effortless separation but not so much as to cause prerelease from the mold wall.

Eliminate Color Swirl

“Swirling” is a result of excess static electricity buildup during rotational molding of dry, colored polymer resins. McLube’s line of rotational molding release agents includes anti-static coatings that reduce static buildup as resins wash over the mold surface during initial heating steps. Reduced static prevents particle separation, allowing for normal blending during the rotational molding process.

Is your rotomolding process experiencing pigmentation swirling? Some rotational molders may simply be able to slow rotation during heating to prevent excess static. Contact McLube® and one of our experienced Technical Representatives will help you solve color consistency issues and, if necessary, seamlessly integrate our anti-static release agent into your existing process.

Improve Surface Finish

The most important factor for excellent surface finish is the condition of the molding surface itself. McLube® release agents preserve mold details with thin, even coatings that compliment, but never diminish, the finest details. Our mold release technology also includes proprietary additives that help to protect your mold walls from corrosion, grime, and microscopic abrasions that lead to poorer surface finish over time and decrease the effective lifespan of rotational molds. Contact McLube® to learn more about how our release agents for rotomolding can improve surface finish and reduce rejection rates while saving you time and money.


  • More control over your process
  • Tailored release and flow characteristics for complex parts
  • Preserve mold details
  • Protect expensive equipment from corrosion
  • Maintain product geometries
  • Chemically bond to the mold surface to prevent peeling, transfer, and flake-off
  • Durability and abrasion resistance for multiple releases per application
  • Easily diluted or delivered ready-to-spin
  • High temperature tolerance
  • Reduced need for touchup
  • Highly automatable with custom viscosities available
  • Custom slip characteristics (low, medium, high)


Supported Materials

Over 80% of the rotational molding industry uses one or more types of polyethylene. McLube’s line of release agents for rotomolding includes tailor-made formulas for reliable release of cross-linked polyethylene (PEX, XPE, XLPE), linear low-density polyethylene (LLDPE), low-density polyethylene (LDPE), and high-density polyethylene (HDPE). We also offer rotomolding release for traditional PVC materials and newer materials to the rotomolding industry like Nylon 6, ECTFE, polycarbonate, and polypropylene.

Don’t see your compound? Our Formulation Chemists have the industry-related knowledge and expertise to work with you to engineer a custom formulation catered to your process.

Consult a local McLube® Technical Representative to find the ideal formula available for your needs. Featured products displayed on this page from time to time are for promotional purposes only and do not represent the full product line McLube® offers for this particular material or application. Product availability, including container sizes, concentrations, and aerosols, will vary by country or region. Names of certain products may also vary slightly (prefix, suffix, etc.) depending on your location without affecting performance.

McLube® Marine

Our Marine Division is the world’s leading manufacturer of high-performance dry lubricants (SAILKOTE®) and low-friction hull coatings for professional sailors, Olympians, and boating enthusiasts alike. We provide reliable dry lubricants for everything that slides and environmentally-conscious hull coatings with unparalleled anti-friction characteristics. Our ONE DROP® Ball Bearing Conditioner is the only product Harken® recommends for everything that rolls. Team McLube® partnered with Harken® in 1998 to provide top-quality coatings and polishes to sailors around the world.

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