Biocompatible polycarb cleaner?
Biocompatible polycarb cleaner?
(OP)
I'm tyring to find a biocompatible cleaner for a polycarbonate medical device component. We have recently failed ISO-10993 irritation testing on parts cleaned with Oakite 61B. We are suspecting the cleaner. Any help you can provide would be helpful. Thanks.





RE: Biocompatible polycarb cleaner?
I should think ethanol or isopropanol would not affect the PC.
www.tynevalleyplastics.co.uk
RE: Biocompatible polycarb cleaner?
Regards
Pat
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RE: Biocompatible polycarb cleaner?
Cripes!! Just looked up Oakite 61B:
Looks like it would make a good oven cleaner too!!
www.tynevalleyplastics.co.uk
RE: Biocompatible polycarb cleaner?
They are the sorts of things PC resists at moderate temperatures, however I would at least wear gloves and goggles handling them. The soda ash content is corrosive of skin.
Regards
Pat
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RE: Biocompatible polycarb cleaner?
Any other suggestions other than IPA?
RE: Biocompatible polycarb cleaner?
The parts will eventually crack and fail, but how many use clean cycles in the meantime is anyones guess. Why was PC chosen and is it to late to change materials.
Regards
Pat
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RE: Biocompatible polycarb cleaner?
Bayer reckon their Makrolon has good resistance to IPA. I wouldn't think their stuff is much different from any other.
See page 4: http://pl
where it also indicates poor resistance to 1% Sodium Hydroxide in water!!
www.tynevalleyplastics.co.uk
RE: Biocompatible polycarb cleaner?
When I worked for Bayer, I got quite a few sales based on better solvent stress crack resistance as proved by trials.
We still did not recommend it into applications where solvents were involved, but on existing accounts we often obtained increased life compared to other brands. They told me it was due to their lower content of residual toluene (I think from 20 year old memories) from manufacture.
Regards
Pat
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RE: Biocompatible polycarb cleaner?
The test lab suggested using Simple Green. It looks like a mild cleaner: http://i
Thanks for all the input so far.
RE: Biocompatible polycarb cleaner?
Example, test PC in AR grade kerosene, good resistance when testing, then use in industrial grade and it breaks in seconds due to the 1 or 2% aromatic impurities.
If the parts are simply washed for a few seconds, surely a 24 hour immersion test should inspire confidence. Test real parts under real stress in the actual grade you will use.
Regards
Pat
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RE: Biocompatible polycarb cleaner?
http://www.winsol.com/6045.htm
https://www.daydots.com/article.asp?HKEY=
002&strPRODH=001010&strMATNR=60211-01-11
RE: Biocompatible polycarb cleaner?
RE: Biocompatible polycarb cleaner?