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McKee's 37

Foaming Wheel Cleaner Gel

acid-basedcolor-changingiron-reactivewheel-safecoated-wheel-safeready-to-usedanger-labelclear-coat-safeheavy-dutyvoc-compliantbiodegradable

Best Value

$1.23/oz

An acidic gel wheel cleaner featuring oxalic acid for dissolving brake dust with color-changing visual feedback during the cleaning process.

Key Chemistry

pH Level

2.5

Active Mechanism

acid dissolution

Surfactants

0

Expert Analysis

The disclosed components include oxalic acid as the primary active ingredient, which chemically dissolves ferrous iron particles in brake dust at a low pH of 2.5. The gel formulation is designed to cling to vertical wheel surfaces for extended contact time, though the complete surfactant system and thickening agents remain undisclosed.

Key Differentiators

  • Thick gel consistency that clings to vertical surfaces and stays where sprayed
  • Color-changing visual indicator that shows active brake dust dissolution
  • Ready-to-use acidic formula requiring no dilution for immediate application

Potential Concerns

  • Strong acidic pH (2.5) requires careful handling and thorough rinsing to prevent potential damage
  • Oxalic acid toxicity necessitates proper ventilation and protective equipment during use
  • Limited ingredient transparency makes it difficult to assess compatibility with sensitive wheel finishes

Ingredients

2 disclosed
oxalic acid1 – 3
CAS: 144-62-7cleaning agent
2-(2-butoxyethoxy)ethanol1 – 2
CAS: 112-34-5solvent

Source: sds only

Safety Profile

Signal Word
Danger
Eye Hazard
H318 - Causes serious eye damage
Skin Hazard
H315 - Causes skin irritation
Corrosive to Metals
Yes
Flammable
No