Does anyone know if WD40 is bad for rubber components?

As WD40 is an oil I'd say not that good for rubber components. Oil will rot rubber so I'd say not that good!

It officially says it's fine on rubber but I'd not use it....

Of course I may be wrong!

Good song they did though...Rat in me kitchen...

I have rubber oil hoses on my car. Should I be worried?

Try getting it on some latex gloves, watch them melt...........

Pretty sure its ok - Its more like parrafin and very inert as far a rubber & plastic is concerned .... latex however might be a different story.

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Originally posted by Jon Ison
Try getting it on some latex gloves, watch them melt...........

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Try spraying a bit in the air in a room with balloons, they all go bang pretty quickly. Quite a quick way to end your kids party when the jelly starts hitting the walls!

Spoilsport!. Britishtrident has posted several times about using WD40 on rubber components as it contains kerosine, which I think may be what us Brits would call parrafin

i used to have polished rims on my motorbike and used to spray them to stop them corroding, i never had any problems with the tyres

I used to use wd40 to clean up and "make shiny" the rubber thingy's (harmonica balloon rubbers) on my mopeds suspension never had problems

Man I had a laugh at the reactions, especially the "room with baloons" one

grtz Thomas

A machinest pointed out to me that what makes WD40 work is that it contains a bit of acid. Over a time it will have a bit, small, of an eroding effect if used consistently on metal parts.