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🛠️ Lock in lasting protection—because your tools deserve the best!
WD-40 Specialist Corrosion Inhibitor is a professional-grade anti-rust spray that protects metal parts by blocking air and moisture. It offers up to 2 years of indoor protection and 1 year outdoors, with a precision straw for controlled application. Its non-drying formula stays where applied, making it ideal for preventative maintenance in extreme environments. Trusted by professionals, it extends the life of tools and equipment while being 50-state VOC compliant.











| ASIN | B00631GWS4 |
| Best Sellers Rank | #3,606 in Automotive ( See Top 100 in Automotive ) #16 in Care Corrosion & Rust Inhibitors |
| Brand | WD-40 Specialist |
| Brand Name | WD-40 Specialist |
| Container Type | Can |
| Customer Reviews | 4.7 out of 5 stars 2,695 Reviews |
| EU Spare Part Availability Duration | 1 years |
| Global Trade Identification Number | 00079567300038 |
| Included Components | WD40 300035 Specialist Corrosion Inhibitor Spray - 6.5 oz. |
| Item Form | Spray |
| Item Type Name | WD40 300035 Specialist Corrosion Inhibitor Spray - 6.5 oz. |
| Item Weight | 6.5 ounces |
| Liquid Volume | 10 fluid ounces |
| Manufacturer | The WD-40 Company |
| Material | Metal |
| Model Number | 300035 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Package Information | Can |
| Part Number | 300035 |
| Recommended Uses For Product | Corrosion Inhibitor |
| Specific Uses For Product | Prevent Corrosion |
| UPC | 079567300038 |
| Unit Count | 1 Count |
M**�
Effective Corrosion Protection
I used this WD-40 corrosion inhibitor on metal tools and outdoor equipment. It applies easily and leaves a protective coating that helps prevent rust and corrosion. The spray nozzle works well, and a little goes a long way. So far, it has performed as expected and seems like a good option for protecting metal surfaces.
T**K
Great choice
Very effective preforms as advertised!
W**K
Thick
Thick semi permanent rust protection.
C**R
This works, but it’s expensive
I really like this stuff, but you do have to use it frequently and it is pretty expensive but it does work and I don’t know of a really good replacement for this product.
A**R
Good product.
Works as its should!!
V**R
Happy Camper
Greal reliable quality
A**R
Perfect
Worked fine
K**N
Must do maintenance for Garage door springs
I've been using this WD-40 Specialist Corrosion Inhibitor on my garage door springs, and it's one of those maintenance products that pays for itself many times over. If you have a garage door, I honestly think this is a must-have. A light coat helps protect the springs from rust and corrosion, especially if you live in a humid or coastal area. Keeping the springs protected can help prolong their lifespan and delay what can easily become a $500–$700 garage spring replacement. Spending a few minutes once or twice a year is well worth it. The best part is how long a single can lasts. You only need a small amount each application, so one can can easily last for years for the average homeowner. It's inexpensive insurance for one of the hardest-working parts of your garage door. Highly recommended if you want to stay ahead of rust and keep your garage door operating smoothly for as long as possible.
S**O
Excellent produit
Nous avons 2 voitures pas recentes mais propres, j’ai testé cette enduit sur quelques pièces et surfaces avec de la corrosion puis verifié le resultat apres avoir passé un hiver Canadien. Je suis surpris du résultat, le produit dilue la rouille puis sèche apres environs une journée laissant une protection qui a passé l’hivers. Oui c’est Très dispendieux pour une petite bouteille mais je le recommande tout de même fortement.
B**P
Protection
Great for long storage of machinery with cast iron surfaces etc
R**.
Excellent product
Very useful , meets the expectations.
D***
Eficaz, lubrica y protege, ¡sólo WD-40 Specialist!
Como ingeniero metalúrgico sé que ninguna pieza metálica se salva de la oxidación, incluso si están almacenados (claro, a menos que estén al vacío). Hago trabajos eléctricos y de fontanería por pasatiempo, por eso sé que invertir en buenas herramientas es ideal para evitar hacer gastos recurrentes en nueva herramienta, después de cada trabajo limpio toda la herramienta que usé (elimino polvo, remuevo óxido superficial con cepillo de latón) y aplico este lubricante, es el que elijo por los resultados que me ha dado, no sólo protección contra la oxidación y corrosión en herramientas, también en bisagras, cadenas, soportes metálicos y otras aplicaciones. Las herramientas que ves las he tenido por más de un año, algunas son de años, pero teniendo el cuidado y mantenimiento adecuado pueden parecer de ayer. Nota: Una vez que rocías el lubricante en el objeto deja una capa "blanca espesa", esta desaparece en varios meses si fue abundante, si fue una capa fina y la esparces por la superficie no es notoria.
A**R
Del problem
Bottle is quite small and delivery took a lot more than it stated on order details
Trustpilot
3 days ago
4 days ago