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Orange aerosol can with attached smart straw, 15 oz

WD-40 Specialist Degreaser with Smart Straw 15 Oz

SKU CH-CP29-BDJJR

Heavy-duty solvent breaks down grease on engines and machinery with a dual-spray straw for precise or broad coverage

  • Key featuresBiobased, Pomelo, Sprays, Metal
  • Breaks down tough grease on engines and machinery with industrial-strength formula
  • Fast-acting solvent works on contact to free stuck threads, locks and chains
  • Smart Straw sprays two ways for precise application or broad coverage
  • 50-state VOC compliant for a cleaner and safer working environment
  • Penetrates up to 2x faster than the competition based on 2021 third-party test

Industrial Degreaser for Engines and Machinery

WD-40 Specialist Degreaser with Smart Straw is a heavy-duty solvent built for mechanics and maintenance crews who need to strip grease from engines, heavy machinery, power equipment and metal tools. The biobased, pomelo-scented formula is 50-state VOC compliant for a cleaner working environment. It suits workshops and industrial sites where fast degreasing is a daily requirement.

Fast-Acting Formula with Smart Straw Delivery

The industrial-strength solvent breaks down grease on contact and penetrates up to 2x faster than the competition, freeing rusted parts up to 50% faster in third-party nail climb tests from 2021. A permanently attached Smart Straw sprays two ways, giving precise application or broad coverage without losing the nozzle. It leaves a protective layer that helps prevent rust from reforming.

Sustained Performance on Stuck Fasteners

Under sustained use the penetrant continues to work on seized threads, locks, chains, nuts and bolts, loosening them progressively rather than in a single burst. The formula remains effective across versatile applications such as pipe threads and gears where corrosion is a persistent concern. Professional-grade chemistry keeps equipment looking and working like new through repeated cycles.

How it compares

Measured against everything we stock in Degreasers & Rust Removers, at today’s prices. Recalculated every night.

Price $14.99
Cheaper than about 64% of the 48 comparable items (median $16.99).

Specifications

Product
Brand nameWD-40 Specialist

Questions about this item

How do I use the Smart Straw to spray the degreaser without wasting product?

Flip the attached straw up for a wide fan pattern or down for a focused stream; the straw stays fixed so it never falls into the engine bay.

Will I need to re-lubricate bolts after the degreaser dries?

The formula leaves a protective layer that helps prevent rust from reforming, but it is not a lubricant — apply a dedicated WD-40 Specialist lube if threads need ongoing lubrication.

How long can I soak a seized bolt before the solvent evaporates?

The fast-acting industrial solvent penetrates up to two times faster than the leading competitor, freeing rusted parts up to 50 % faster in third-party nail-climb tests from 2021.

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