Wd-40® WD-40 Specialist® Penetrant Spray 400ml
14-day returns on all eligible orders
Contact us within 14 days of receiving your order to request a return.
Shipping information
Orders are picked, packed and dispatched from our Northampton warehouse.
- Free delivery to mainland UK addresses on orders of £40 or more.
- Orders under £40, and orders to Northern Ireland, have a delivery charge, shown at checkout before you pay.
- You will get an email with your tracking number once your order has shipped.
Full details are in our Shipping Policy.
Returns & warranty
Changed your mind? You can return an online order within 14 days of receiving it. Please contact us first for return instructions, then you have 14 days to send the goods back.
- Items must be unused, complete and in their original condition, with all accessories, instructions and original packaging.
- You arrange and pay for the return postage on change-of-mind returns. We refund the price of the item plus our standard delivery charge.
- Damaged in transit? Let us know within 48 hours of delivery - photos help.
- Faulty or wrong item? Contact us before sending anything back. Faulty goods are covered by your statutory rights.
Your statutory rights are not affected. Full details are in our Refund Policy, or email onlinesales@nn4online.co.uk.
WD-40 Specialist® Penetrant Spray quickly release rusted, corroded, stuck, or seized nuts, bolts, parts or fixings with ease. Working on contact, the penetrant saturates deep into seams, crevices, and threads to break down any rust that bonds parts together, rapidly lubricating and freeing them. WD-40 Specialist Penetrant spray is easy to use, highly water resistant and leaves behind a protective layer to prevent rust and corrosion from re-forming.