Formulation Card
FC-13.1-M
Hand Car Shampoo — Concentrate
mediumSource: Chapter 13 §13.1
Ingredients
| Ingredient | % w/w | Function |
|---|---|---|
| Deionized water | qs to 100.0 | Diluent |
| SLES (70%) | 14.0 | Primary surfactant, foaming |
| CAPB (30%) | 5.0 | Foam stabilizer, mildness, viscosity |
| Alcohol ethoxylate (, 6 EO) | 3.0 | Degreasing, lubricity |
| Glycol ether (DPM: dipropylene glycol methyl ether) | 2.0 | Solvent boost for road film |
| Carnauba wax emulsion (25%) | 3.0 | Hydrophobic sheeting, gloss |
| Tetrasodium EDTA | 1.0 | Chelant, hard water stability |
| Sodium chloride | 1.5 | Thickener (salt-curve) |
| Preservative (MIT/CMIT) | 0.1 | Microbial protection |
| Citric acid | qs to pH 7.5 | pH adjustment |
| Total | 100.0 |
Formulation Notes
A neutral-pH, high-foaming shampoo for bucket washing with wax-safe surfactant synergy.
Method: Dissolve EDTA in deionized water at 40–45 °C. Add SLES, CAPB, and AE sequentially with stirring. Add glycol ether and carnauba wax emulsion. Cool to 30 °C; add preservative. Adjust pH with citric acid. Thicken with sodium chloride added slowly to the salt curve peak (typically 1.0–2.0%). Properties: pH 7.3–7.7, viscosity 2{,}000–4{,}000 cP (Brookfield DV-II, 25 °C, spindle 3, 30 rpm), active surfactant matter 16.5% ± 0.5%.