WD-40 – it’s an almost universally known brand and core product. Their core product is synonymous with being used to stop hinges squeaking, or loosening rust affected nuts and bolts. While none of us really think about it, it’s the sort of product that almost every house will have a tin of – either in a shed, or under the laundry sink, or tucked away at the back of the cupboard underneath the kitchen sink. Every home mechanic reaches for the can if there is a nut or bolt they can’t undo. Indeed, it was once noted that 4 out of 5 U.S. households had a least one can, let alone the amount sold
