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Revision as of 14:27, 24 August 2017 by NT (talk | contribs) (→‎edit: new section)
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will update later NT 03:08, 2 September 2014 (BST)

FAQ at

"What surfaces or materials are OK to use WD-40(tm) Multi-Use Product on?"

"WD-40(tm) Multi-Use Product can be used on just about everything. It

is safe to use on metal, rubber, wood, and plastic.  It can also be
applied to painted metal surfaces without harming the paint.
Polycarbonate and clear polystyrene plastic are among the few
surfaces on which to avoid using a petroleum-based product like
WD-40(tm) Multi-Use Product." 



I don't have time now but this needs sorting out.

3 in One is a brand of oil that attempts to be 3 things in one: lubricating oil, penetrating oil and corrosion prevention. Since these 3 tasks have conflicting requirements its impossible to make a good job of them all with one product. + 3-in-One is a brand of oil, marketed for lubrication, cleaning of metal and protection against rust. It is prone to becoming gummy, which limits its usefulness for lubrication. Nevertheless, it comes packed in a small can with a spout, so it comes in handy for all sorts of jobs.

− Since its prone to becoming gummy we don't recommend it as a lubricant. The cans it comes in are handy. + At least one manufacturer of air conditioners recommends 3-in-One for use during making-up of flared pipe connections, because it does not contain unwanted additives. NT (talk) 14:27, 24 August 2017 (UTC)