Vinegar (Acetic Acid)
Quick answer: Vinegar is a dilute solution of acetic acid used as a mild acid cleaner. It can dissolve fresh mineral water spots and neutralise alkaline residues, but it can also mute hydrophobics, strip waxes and harm sensitive materials if misused.
What it means
Household white vinegar is typically ~5% acetic acid in water (cleaning vinegar can be stronger). As a weak acid, it helps break down basic deposits such as limescale and some salt residues. In detailing, it is sometimes used as a short-contact, well-rinsed acid rinse on glass and paint for fresh spots – but purpose-made water-spot removers are usually safer and more effective.
Why it matters
- Mineral removal: helps with light, fresh hard-water spots before they etch.
- Neutralisation: can neutralise alkaline cleaner residue after heavy pre-wash.
- Caveats: can dull or strip waxes and toppers, mute beading, and isn’t ideal for leather, bare metals or infotainment screens.
- Alternatives: dedicated water-spot removers and pH-balanced products are better choices for regular use.
Where you’ll see it
DIY tips for removing water spots on glass or paint, home remedies for showered cars, and neutralising strong alkaline residues in a pinch.
Context
Car Paint Protection; Maintenance; Cleaning chemistry
Common mistakes
- Using vinegar as a general car shampoo – it can strip or dull waxes, sealants and toppers.
- Leaving it to dry on paint or glass – always short dwell and rinse thoroughly.
- Using on leather, alcantara, screens, matte finishes or fresh respray – can damage finishes or adhesives.
- Applying on bare or polished metals (e.g., aluminium, zinc) – risk of dulling or staining.
- Expecting it to fix etched glass/paint – it can remove deposits, not reverse etching.
Written by Danny Argent. Last updated 10/11/2025 17:02