Light seal info request

Asha

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Asha
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Linking this thread into f&c as I think the OP may benefit from more responses in this section of the forum

 

And rubbing alcohol to help removing the old stuff

 
Be aware that surgical spirit (in the UK) is NOT necessarily Isopropyl Alcohol.
 
And rubbing alcohol to help removing the old stuff

Good grief - I nearly spat my tea all over my keyboard. Talk about profiteering. :eek:

I buy it by the litre - it's much cheaper and is useful for a myriad of other things:

 
I went for the JemChem - a couple of quid cheaper. Tastes the same!!!
 
Be aware that surgical spirit (in the UK) is NOT necessarily Isopropyl Alcohol.
Surgical Spirit as defined in the British Pharmacopoeia (BP) as a mix of
  • Industrial Methylated Spirit (ethanol plus some methanol, to make it poisonous to drink and pyridine to make it taste and smell nasty)
  • Methyl salicylate (wintergreen oil, causes skin blood vessels to dilate)
  • Diethyl Phthalate (tastes nasty)
  • Virgin Castor Oil (skin moisturiser)
Not a mix you want to apply to your camera, good for bed sores and hardening the skin on your feet.

American Rubbing Alcohol is often mostly isopropyl alcohol (with additives to make it taste nasty as is also is poisonous by ingestion but not as much as methanol)

Pure isopropyl alcohol is the best thing for use cleaning off light seals and also for removing stickiness from plastic camera bodies. As @Sky says can be got much cheaper in bulk.
 
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I was lucky enough to be given 5 litres of Isoclene, which is isopropyl alcohol, by an acquaintance who took it home from the laboratory he worked at when it closed and he was made redundant. I still have about a litre left although I've had it for at least 20 years. I have used it to clean out the black tar which perished camera seals become. It's also dead good at cleaning lenses and spectacles. I fact I think the pathetic little sprays you can get from an optician are probably isopropyl alcohol,.just 10-12 times more expensive, say, for example, you buy a 2L container of isopropyl alcohol from Amazon, it will cost you about £14 (postage payed), a Boots 30ml spray £2.49. And look, 2L could last you 10 years easily.

By the way, a synonym for isopropyl alcohol is IPA. Whatever you do don't try using Greene King IPA to clean your camera!
 
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