The same surface migration that makes oleamide a slip agent in film makes it useful wherever plastic meets metal or a pigment needs wetting. Outside the film line, oleamide shows up as a processing lubricant, a mold-release aid, and a dispersant, and it is one of the more under-documented tools in the compounder’s kit.
The short version: beyond film slip, oleamide is an internal and external lubricant that eases melt flow and processing, a mold-release agent that helps parts let go of the tool, and a pigment and filler dispersant in masterbatch, inks, and coatings. It is chosen for its low cost and fast bloom; where higher temperature resistance, no migration, or a specific release behavior is needed, a stearamide, bisamide (EBS), behenamide, or silicone release is often the better call.
Processing lubricant
In compounding and extrusion, oleamide acts as both an internal lubricant, reducing friction between polymer chains to improve melt flow, and an external lubricant, migrating to the metal interface to reduce drag against screws, dies, and rolls. The result is easier processing, lower torque, and better surface finish at a low addition level. It is a cost-effective processing aid for polyolefins and some other thermoplastics.
Mold release
Oleamide’s tendency to bloom to surfaces makes it a useful internal mold-release additive in injection and extrusion. Compounded into the resin, it migrates to the part-tool interface and helps the molded part release cleanly without an external spray. It suits parts where a low-cost internal release is enough; for high-temperature tools or where absolutely no surface migration is acceptable, a different release chemistry is the right choice.
Pigment and filler dispersion
Oleamide has good dispersibility and compatibility with resins and wets and disperses dyes, pigments, and fillers, which makes it useful in color and filler masterbatch, printing inks, and coatings. It helps break up agglomerates and carry pigment evenly through the melt or vehicle, improving color development and gloss. In inks it also contributes slip and a degree of release.
Choosing oleamide versus other amides
| Need | Often the better tool |
|---|---|
| Low cost, fast bloom, general lubrication | oleamide |
| Higher thermal stability, slower migration | stearamide or behenamide |
| Internal lubrication with minimal blooming | EBS (ethylene bis-stearamide) |
| Clean release, very high temperature, no migration | a silicone release |
The honest position is the same as with slip in film: oleamide is the cost-effective, fast-blooming choice, and the right one for many lubrication and dispersion jobs, but not the universal answer. A supplier should spec the amide or release that fits your temperature, migration, and finish needs.
Buying oleamide in bulk
RawSource supplies oleamide (CAS 301-02-0) as prills, beads, or powder at 99.5% minimum total amide, for plastics and polymer processing, masterbatch, inks, and coatings, with CoA documentation, by the bag and pallet. Its slip behavior in film is covered in how oleamide works as a slip agent, and the oleamide-versus-erucamide choice in oleamide vs erucamide. Request a sample and confirm the lubrication, release, or dispersion result on your own system before a bulk order.
Frequently asked questions
Is oleamide a lubricant?
Yes. It works as both an internal lubricant, improving melt flow, and an external lubricant, reducing drag at the metal interface, which makes it a low-cost processing aid for thermoplastics.
Can oleamide be used as a mold-release agent?
Yes, as an internal release that blooms to the part-tool interface and helps molded parts release without an external spray. For high-temperature tools or no-migration requirements, a different release chemistry may suit better.
Does oleamide help disperse pigments?
Yes. It wets and disperses dyes, pigments, and fillers, so it is used in color and filler masterbatch, inks, and coatings to improve dispersion, color development, and gloss.
Oleamide or stearamide or EBS?
Oleamide is the low-cost, fast-bloom choice; stearamide and behenamide offer higher thermal stability and slower migration; EBS (ethylene bis-stearamide) gives internal lubrication with minimal blooming. Choose by temperature, migration, and finish needs.
Editorial note. This article is general technical guidance for plastics and processing professionals, written for industrial and professional use. Oleamide here is an industrial processing additive for plastics, not a food, supplement, or consumer product, and nothing here is a health or efficacy claim. Selection guidance is general; validate the lubrication, release, or dispersion result on your own system. The Certificate of Analysis governs the material you buy. Consult the product Safety Data Sheet (SDS) before use. RawSource makes no warranty, express or implied, and assumes no liability for use of this information.
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