WD-40 · Outdoor Furniture Cushion Protectants
WD-40 2.75 oz. Multi-Use Product, Multi-Purpose Lubricant Spray, Handy Can
Mineral oil base with no PFAS-associated material on record.
WD-40 Multi-Use Product is formulated with mineral oil, solvents, and propellant spray. The brand has no PFAS statement on record. No water-repellent finish or coating linked to PFAS appears in the product record.
We flunk more products than we pass. This one earned its grade. How we grade
Material
mineral oil, solvents, propellant spray
Lab data
No public lab test
What WD-40 2.75 oz. Multi-Use Product is made of, ingredients and materials
WD-40 is primarily a mineral oil-based lubricant combined with volatile organic solvents (including aliphatic hydrocarbons and carbon dioxide propellant). The 2.75 oz handy can uses the same formulation as larger sizes. Mineral oil itself has low toxicity when used as intended, but the volatile components can off-gas in enclosed spaces. This product is not designed for direct skin contact or food surfaces, which limits exposure pathways in typical furniture care.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Volatile organic compound (VOC) off-gassing
The aliphatic hydrocarbon solvents in WD-40 spray are designed to evaporate quickly; short-term inhalation in poorly ventilated spaces may cause mild respiratory irritation or headache in sensitive individuals.
Skin irritation and aspiration risk
Product safety data sheets note that direct skin contact is irritating and accidental ingestion (aspiration) can harm lungs. Not a hazard with normal furniture use but relevant for households with young children or pets.
Flammability
WD-40 spray is classified as flammable due to its hydrocarbon content and propellant; keep away from ignition sources, heat, and open flame. Not a hazard during normal furniture lubrication but important for storage.
Finish degradation on certain wood coatings
The solvent blend can soften or cloud some lacquers, varnishes, or water-based finishes over time; testing on inconspicuous areas is essential before full application.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Formaldehyde / VOCs
WD-40 does not contain formaldehyde or formaldehyde-releasing preservatives; hazard is not associated with this product category.
Source, ATSDR ↗The full breakdown
The brand's record and disclosure
WD-40 Company has maintained consistent product formulation for decades with no major recalls or safety warnings on this handy-can size. The company does not voluntarily disclose PFAS testing data, though lubricant sprays are not typical sources of per-fluorinated compounds. No third-party testing has flagged WD-40 for undisclosed hazardous additives, and the product carries no hidden allergen alerts in published safety data sheets.
How it compares in its category
WD-40 is the category standard for multipurpose lubricant sprays and is considered lower concern than furniture-specific products that may contain silicones, waxes, or undisclosed coatings. Compared to oil-based furniture polishes, WD-40 dries faster and leaves less residue, reducing dust attraction. Plant-oil alternatives (linseed or orange-oil sprays) are comparable in safety but may require more frequent reapplication.
If you buy it
Always use in a well-ventilated area or outdoors to minimize inhalation of volatile solvents. Spray on a cloth rather than directly on furniture to control application and reduce overspray. Test on hidden wood surfaces first, as the solvents can darken certain finishes. Store away from heat and flame; do not use on leather, suede, or upholstered fabrics, as it can stain or degrade synthetic fibers.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- WD-40 has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
More outdoor furniture cushion protectants grades
How we score, every product runs through the same public 0-100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.