Formulation Card
FC-13.5-M
Tire Cleaner — Heavy Duty
mediumSource: Chapter 13 §13.2
Ingredients
| Ingredient | % w/w | Function |
|---|---|---|
| Deionized water | qs to 100.0 | Diluent |
| APG (, 50%) | 6.0 | Mild surfactant, rubber-safe |
| Sodium metasilicate pentahydrate | 3.0 | Alkaline builder, saponification |
| Triethanolamine (TEA) | 2.0 | pH buffer, emulsification |
| d-Limonene | 2.0 | Solvent, rubber bloom removal |
| Butyl glycol ether (2-butoxyethanol) | 1.5 | Co-solvent, grease cutting |
| Tetrasodium EDTA | 1.0 | Chelant |
| Xanthan gum | 0.2 | Thickener, cling |
| Total | 100.0 |
Formulation Notes
Alkaline cleaner for removal of browning (antiozonant bloom), road grime, and brake dust overspray from tire sidewalls.
Method: Dissolve sodium metasilicate and EDTA in water. Add APG and TEA. Add glycol ether and d-limonene. Thicken with xanthan gum. Properties: pH 10.5–11.5. The APG surfactant is selected for its mildness toward rubber; it does not extract plasticizers from the tire sidewall. d-Limonene solubilizes the brown antiozonant bloom that migrates to the tire surface as a natural protective mechanism against UV and ozone .