Meguiar'sIron Removing Spray Clay

Updated January 2026 · 16 ingredients analyzed

pH-Neutral

$1.00BEST $/OZ

An iron-reactive decontamination spray that uses sodium thioglycolate to dissolve embedded iron particles and industrial fallout from vehicle surfaces. Meguiar's Iron Removing Spray Clay ranks #3 of 18 iron removers for gentleness.

Key Chemistry

Active

Thioglycolate

Active strength

≈6.0%

Expert Analysis

Uses 5-10% sodium thioglycolate at pH 6 to chemically dissolve iron-based contaminants like brake dust and rail dust through reduction reactions. The near-neutral pH formulation with anionic and nonionic surfactants provides effective cleaning while remaining gentler on paint and protective coatings compared to more acidic iron removers.

Key Differentiators

•pH 6 formulation offers safer iron removal compared to more acidic alternatives
•Targets subsurface contaminants like rail dust and iron oxides beyond typical surface brake dust
•Clay integration with iron removal chemistry for dual-action contamination removal

Ingredients

16 disclosed

Water

≥80%

CAS: 7732-18-5Diluent

SODIUM MERCAPTOACETATE

5–10%≈ 6.0% active thioglycolate (salt-normalized)

CAS: 367-51-1Surfactant

Alkoxylated Alcohols

1–5%

CAS: 68439-46-3Surfactant

Phenyl Sulfonate Salt

1–5%

CAS: 1300-72-7Surfactant

ALCOHOL ETHOXYSULFATE (SODIUM SALT)

<3%

CAS: 68585-34-2Surfactant

Poly(oxy-1,2-ethanediyl), .alpha.-undecyl-.omega.-hydroxy-

N/D

CAS: 34398-01-1Surfactant - Cleaning Agent

Fragrance Ingredient

N/D