Rev counter stopped suddenly

[Tony Brooks]

Never use WD40 on electrical circuits. It is conductive and highly flammable, it also eats plastic.

Always have a can of switch cleaner handy, I'm sure Maplins must sell it.

 

I have not found WD 40 to be highly inflammable but the butane propellant in the aerosol version is another matter.

[cuthound]

Never use WD40 on electrical circuits. It is conductive and highly flammable, it also eats plastic.

Always have a can of switch cleaner handy, I'm sure Maplins must sell it.

According to their website WD40 is flammable but not highly so as it does not support flashback but can carry a flame forward, uses CO2 as a propellant and is safe to use on plastics.

 

https://wd40.com/faqs

[Flyboy]

Never use WD40 on electrical circuits. It is conductive and highly flammable, it also eats plastic.

Always have a can of switch cleaner handy, I'm sure Maplins must sell it.

WD 40 has always been used on petrol engine ignition leads to disperse water so I don't think there's any problem with flammability. The spec. sheet confirms it's safe on electrical equipment & most plastics. Nowhere does it say it's conductive, it actually has high di-electic properties which means it is a very good insulator.

 

http://www.wd40.co.uk/wd-40-multi-use-product/original/

 

http://www.wd40.co.uk/wp-content/uploads/2016/05/Multi-Use-Product-Aerosol.pdf

Edited February 6, 2017 by Flyboy

[WotEver]

Interesting article on Snopes showing some of the common claims for WD40 and the same list as amended by the manufacturer.

 

http://www.snopes.com/inboxer/household/wd-40.asp

 

Note that neither list recommends it as a contact cleaner. If you must use it to clean electrical contacts then you should follow it up with contact cleaner / lubricant in order to displace the WD40 which will otherwise go sticky and attract even more crud.

[Flyboy]

There is a specific WD 40 contact cleaner.

 

https://www.wd40specialist.com/products/contact-cleaner