People who know the formula for WD-40

Re:People who know the formula for WD-40 by jrflowers on Monday January 26, 2026 @06:32PM (#46773249)

>The actual ingredients are literally on the safety data sheet:

The only CAS number listed in that data sheet that doesn’t return Molecular Formula: Unspecified is carbon dioxide. The other 98% of the formulation is just sort of vague references to petroleum distillates.

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Re:People who know the formula for WD-40 by ASalazarMX on Monday January 26, 2026 @06:43PM (#46773367)

For the PDF impaired

- LVP Aliphatic Hydrocarbon (CAS #64742-47-8) 45-50%

- Petroleum Base Oil (CAS #64742-56-9, 65-0, 53-6, 54-7, 71-8) <35%

- Aliphatic Hydrocarbon (CAS #64742-47-8) 10 - <25%

- Carbon Dioxide (CAS #124-38-9) 2-3%

Note: The specific chemical identity and exact percentages are a trade secret.

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Re:People who know the formula for WD-40 by bobmcnamara on Monday January 26, 2026 @09:21PM (#46774704)

I don't know the distribution between aromatic and aliphatic hydrocarbons, but there's lots of each.

> specific chemical identity

I wonder if it's just two hydrocarbons then? Odd that identify is singular.

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