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Many functions of the polymers require properties, supplementary to those provided by the base of the polymer. The additives available are varied and in some cases where demand is high it may be added to a certain grade of polymer at the production stage.


Here at CJ Tool & Mouldings, we have created a list of the most commonly used additives.



To get a desired colour, small particles of high density colours can be added to a natural polymer. You can create special effects with these coloured pigments such as metallic sparkle and pearlescent looks.



You can add antimicrobials/antibacterials to plastic products. These additives help battle against infections. Many NHS hospitals now have plastic products containing this additive.



This additive helps prevent the deterioration of plastic products, where it may be susceptible to biological attack.




Oxidation can result in loss of impact strength, surface cracks and discolouration in plastic products. This additive helps to prevent this.




Plastics can build up a static charge on the surface which can disturb processing and can be an issue for hygiene and aesthetics. This additive helps prevent that build up.




This additive increases the degradability of plastic products, by making it softer and more flexible.




These additives are useful in reducing weight and sink age in thick section parts, as the foam forms an internal structure.



This additive is mainly used in plastic products in the home such as dog bags or nappy bags.



This external additive is added to help prevent damage to the mould or part during processing. Internal slip agents can also make the surface slippery.


Through working within a wide range of customer’s industries we have developed expertise for an extensive range of polymer types.


Get in touch today and talk to the specialists, click here.

Our team will be more than happy to help, advise and quote for your requirements.

Looking for more information? Check out our blog, News & Views for useful articles, tips and tricks on plastic injection moulding.