Slip additives are products which can be added to polymers to control friction. They are added directly into the polymer during the extrusion process and migrate to the surface as the polymer cools, allowing a solid lubricating layer to form.
Slip additives can be used in polymer film structures and plastic packaging to improve polymer processing and in-use properties and are a practical requirement for both the manufacturer and end-product consumer.
Product finderDiscover our slip additives
What is slip?
Slip or surface friction, expressed as Coefficient of Friction or CoF, measures the interaction between two polymer surfaces, or, between the polymer surface and processing equipment. There are several factors affecting the development of friction including:
- Polymer type
- Process temperature and type
- Film gauge and structure
- Other present additives
High friction can result in difficulties with the processing of thin film, winding of film rolls, bag production and packaging operations.
Why use Croda’s slip additives?
We offer a wide range of slip solutions, including:
- Optimised slip performance – including high, fast or controlled slip
- High temperature performance
- Improved oxidative stability
- Low taste, low odour
- Low visible bloom
- Wide range of physical forms
We have technical experts in all global regions to help you chose the best solution and addition level for your polymer system.
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High stability slip !
The ultimate in high stability slip additives
At Croda, we offer slip additives that have been specifically designed for challenging applications. In such applications, standard high slip additives can be prone to oxidative break down under certain conditions such as when exposed to UV light or prolonged heat. It is the products created from this breakdown that can cause unwanted issues with odour, taste and colour in the final product.
Our Incroslip product range has been scientifically designed to withstand tough conditions such as high temperature and sunny climates. This can be a real benefit in films which are stored outside or in hot and sunny regions. In particular, Incroslip SL is a high slip additive showing similar slip performance to erucamide. The unique molecular structure of Incroslip SL means that it is extremely stable under the most challenging conditions, resulting in no issues with odour, taste and colour in the final part and most importantly no loss of slip performance in the film.
Our slip additives are suitable for use in a range of different bio-based polymers.
Our slip additives are perfect for use in polyolefin film production to allow easier processing and handling. They work by reducing friction during production and conversion and well as giving benefits in the end application.
A 50% concentrate of IncroMax 300 in a polycarbonate host polymer. Designed to act as a friction reduction additive and internal lubricant in polycarbonate and gives better dispersion than when using IncroMax 300 in it’s natural physical form.
Torque release additivesAdditives for torque release in caps and closures
Torque release additives for caps and closures to be tightly applied while still allowing for easy removal.Read more
Mould release additivesAdditives that bring a mould release effect
Additives that help to release parts from the mould more easily, resulting in higher quality parts, efficient production, and less wasteRead more
BiopolymersBio-based additives for biopolymers
Bio-based additives, specifically designed to improve the processability and performance of biopolymersRead more
IncroslipHigh stability solutions
Delivering slip, torque release, mould release & anti-scratch benefits to polyolefinsRead more