WD-40 Specialist Fast Release Penetrant 300g

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  • Quickly penetrates and release rusted or corroded parts
  • It loosens seized fixings, mechanisms, rusted bolts and lubricates to protect parts
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WD-40 Specialist Fast Release Penetrant quickly penetrates and release rusted or corroded parts. It loosens seized fixings, mechanisms, rusted bolts and lubricates to protect parts. Whether you need to loosen stubborn bolts, hinges, or any other metal parts that have become stuck over time, WD-40 Specialist Fast Release Penetrant 300g is the ideal solution. Its powerful formula penetrates deeply into rusted or corroded surfaces, allowing for quick and hassle-free disassembly.

* To ensure the product’s compatibility – always test on an inconspicuous area before use. 

  • Quickly penetrates rusted & corroded parts
  • Loosens seized fixings
  • For use on metal, alloys, plastics* and rubbers*
  • The smart straw allows for precision application and can reach hard-to-reach spaces, once you’re done simply flip the smart straw down for a wide spray
  • For use on nuts and bolts, bearings, fasteners and fittings, and screws.
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Local Deliveries

Many Mitre 10 stores offer a local delivery service. Contact your local store about what options you have for local delivery.


This Policy is provided by the Mitre 10 store participating in this website that has been selected by the customer to buy the particular product/s that are subject to this Policy (Store). The Store is not required to provide a refund or replacement if the customer changes their mind. But the customer can choose a refund or exchange if a product has a major problem. View the Full Return Policy.

What you need to know before purchasing

  • Not all stores carry stock of this product, but will order it in for you. 
  • Please allow up to 14 days for stock to arrive at your selected store.
  • Products are available while stocks last.
  • Contact your local store to check stock availability.
  • Images are for illustration purposes only.
  • Price is available to online purchases only.
  • Price when purchasing in-store may vary.

Many of our products come with a guarantee or warranty from the manufacturer. In addition, they come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any further reasonably foreseeable loss or damage. You are entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. Full details of your consumer rights may be found at www.consumerlaw.gov.au.