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What is the coefficient of friction?
The coefficient of friction (CoF) is a measure of how difficult it is for one surface to slide over another. Polyolefin films have a high coefficient of friction (CoF), which leads to their tendency to stick to themselves during processing.
How do slip additives work?
Slip additives are organic compounds that migrate to the surface of the plastic film, reducing the friction between its layers, facilitating better handling in various packaging applications.
Types of slip additives
There are a variety of slip additives, but the best known are fatty acid amides and, in particular, erucamide and oleamide. Both molecules have different properties:

There are a variety of slip additives, but the best known are fatty acid amides and, in particular, erucamide and oleamide. Both molecules have different properties:
Erucamide
Migrates to the plastic surface more slowly than oleamide. Withstands temperatures up to 280°C. Does not interfere with printing, in line with CORONA treatment. Especially recommended for LDPE, LLDPE and PP-copo.
Oleamide
Migrates to the plastic surface faster than erucamide. Maximum recommended temperature 230ºC. Not recommended for printing processes. Especially recommended for PP-homo.
Benefits
- Effective at very low concentrations.
- Provide a cost-effective solution to friction-related limitations while maintaining the optical properties of the final part.
- Complete portfolio with a choice of erucamide, oleamide and their combinations with anti-blocking additives.
Kompuestos offers highly effective slip and slip+antiblock additive masterbatches for polyolefins, with erucamide or oleamide, to make plastic film processing a much easier task.
Approved for food contact according to Regulation (EU) 10/2011 and FDA 21CFR.

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