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Specification Rubbers

07/06/2019

‘EXOTIC’ RUBBERS EAS regularly handles all types of ‘exotic’ rubber materials. While these are generally perceived to also be high cost – in many cases that is not the case! Many of these compounds have a high value simply because they are often made in small batches. We are able to have compounds mixed in batches from just 1kg upwards – and at quite reasonable prices. FKM, HNBR AND FFKM As an example of one of the more commonly used – high value rubber compounds, Hydrogenated Nitrile Butadiene Rubber – or HNBR often falls within that category. Typically parts produced in this compound are approximately 60% higher in value than the same parts in a good quality Fluoroelastomer (FKM).

HNBR is particularly good in contact with oils and chemicals – especially in continuous temperatures – up to 150°C – far surpassing standard Nitrile (NBR). Going up the scale, FFKM – today’s ‘super polymer’ can reach prices of up to £18500.00 per KG – but for extreme applications in Aerospace for instance, products made from these highest grade polymers are actually (almost) ‘worth their weight in gold’ ! – about half the cost of Gold in some cases! These are just two examples – we come across many different polymer grades each day and can normally organise batches of material to match all requirements (within RoHS legislation).

For more information on  Specification Rubbers  talk to  East Anglian Sealing Company Ltd

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