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Product Overview

  • 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:10079567300004
Quick Shipping
Usually ships in 1 business day
Not eligible for expedited shipping

WD-40 300004 Specs

Shipping Weight
6.12 lb.
Chemical Form
Made in America

NSF Listed
Package Size
11 oz.
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. Please contact Customer Solutions prior to placing your order if you have any questions or concerns.

  • 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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Overall User Rating:

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5.0 stars from 6 reviews


People Talk About:

great bolts spray straw wd40 easy release works helps love

Customer Reviews


I've used this for a few years around my house to help with loosening stuck bolts and screws. As a band teacher, I have also used this to loosen frozen metal parts on instruments.

Jennifer L. on 06/04/2018

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

Mike R. from REGARDLESS on 12/11/2017

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!

Tomas S. on 03/24/2017

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

Travis F. from Sweet Pea's Cupcakery Cafe on 01/20/2017

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

Andrea C. from Sir Clean Corp on 01/12/2017

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.

Michael P. from Mike's Mindful Plate on 11/29/2015

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