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Buy 1 - 2 $25.49/Case

Don't need a full case?
  • Attached straw targets spray on small areas
  • Breaks down rust and corrosion bonds
  • Great on metal, plastic, and rubber
  • Helps prevent rust from forming
  • VOC compliant in 50 states

UPC Code:


Usually Ships in 1 Business Day
When will I receive my item?

Not Eligible for Expedited Shipping

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WD-40 300004 Specs
Chemical Form Spray
Made in America Yes
NSF Listed Yes
Package Size 11 oz.
Type Corrosion Inhibitors

Customer questions about this product

Can I use this product on all surfaces?
No, this product is not for use on food-contact surfaces, polycarbonate, or clear polystyrene surfaces.
Ask your own question!

WD-40 300004 Details

Blast away rust and corrosion with WD-40 Specialist rust release penetrant spray! This powerful lubricant comes in a convenient 11 oz. bottle with built-in Smart Straw - simply flip the straw up to direct a precision stream onto small areas, or flip the straw down for a wider regular spray.

WD-40 Specialist rust release penentrant spray boasts Blu Torch technology, a special blend of synthetic additives that breaks down rust on nuts, bolts, threads, locks, chains, and other plastic, rubber, or metal parts. The spray penetrates into crevices, threads, and seams to break down the bonds causing parts to stick and leaves behind a protective layer to help prevent new rust or corrosion from forming. It is VOC compliant in all 50 states.

Due to US DOT shipping regulations, we are unable to ship this product to Alaska, Hawaii, and international destinations. It is also ineligible for next day or second day shipping.

  • Made in America

    Made in America

    This item was made in the United States of America.

  • NSF Listed

    NSF Listed

    This item meets the standards imposed by NSF International, which focuses on public safety, health, and the environment.

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WD-40 300004


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Customer Reviews

  • Overall User Rating: WD-40 300004 Specialist 11 oz. Rust Release Penetrant Spray with Smart Straw - 6/Case

    5.0 stars from 6 reviews


    People Talk About:

    Spray Specialist Smart Sir Release recommend powerful Penetrant lubricant Clean

    This rust release WD-40 is fantastic it works great on those stuck on bolts and such things that get rusted on great product to have on this website I love the straw to it makes it easy to aim rate at the bolts

    from REGARDLESS Posted on


    I love this rust release penetrant spray! It works great just within the seconds! And application is so easy with optional smart straw! Great product for anyone!

    Posted on

    This is a great WD-40 product. Its got a great nozzle which can spray in a mist or thru the straw. Works really well on rust

    from Sweet Pea's Cupcakery Cafe Posted on

    Sir Clean recommend this product WD-40 Specialist 11 oz. Rust Release Penetrant Spray with Smart Straw - 6/Case, because it's a powerful lubricant. We like it

    from Sir Clean Corp Posted on

    I really like the specialist line from WD-40. This has a nice and accurate spray. It really helps to remove the rust making it easy to remove rusted bolts. Great product.

    from Mike's Mindful Plate Posted on

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