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technical chemical question

Posted: Sun Oct 06, 2013 5:03 pm
by Alan (Lancashire)
an obvious problem on older tanks , keep seeing reference to "Dichloromethane MDC Methylene Chloride 99% " as the best solution to removing petseal.

http://www.ebay.co.uk/itm/5-LITRES-Dich ... 8575944867

yup I know companies like "tankseal" will do the job , but at £100 - £150 , tiz a lot of pennies.

comments on other websites say Dichloromethane can be mixed with methanol or acid to work better , my local garage does not sell methenol , and the crack dealer stood on the corner looked confused when I asked him questions about acid!

1:Is this the stuff to use
2: as the tank is greater than 5l , can it be diluted?
3: dilution additive?

cheers

alan