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Yes, terrible for any metal on metal. It's only real use is as a degreaser. Don't believe me? Put it on a bike chain and go for a ride. The whole thing will bi
by ficklepickle 7y ago
Yes, terrible for any metal on metal. It's only real use is as a degreaser.
Don't believe me? Put it on a bike chain and go for a ride. The whole thing will bind up in no time. It will also rust much faster. You can use it to strip old dirty lubricant, before applying fresh lubricant. But not as a lubricant.
I've been told this by no fewer than three people: shop teacher, bike shop owner and a mill wright. I've personally destroyed a bike chain with it as a kid, and I've seen other people destroy bike chains with wd-40.
It may have a bit of lubricant in it, but it is not sufficient.
- kube-system 7y agoSufficiency depends on use case. I typically use WD40 on things that don't require any lubrication under normal operation. There are plenty of metal-on-metal mechanisms designed to work without any lubrication. For those purposes, it exceeds their lubrication requirement of zero. If you have a use-case that typically requires a dedicated lubricant under normal operating conditions (i.e. a chain drive), then this likely exceeds the lubricating capabilities of WD40.