Purple Power Industrial Strength Cleaner and Degreaser

Mix at 10:1 (water:concentrate) for general exterior degreasing, 4:1 for heavily soiled engine parts and greasy tools. Spray on, agitate with a brush, dwell 30–60 seconds, and rinse thoroughly with water. Community broadly confirms single-pass cleaning on engine bay grease, wheel grime, brake dust, and driveway oil stains. The formula cuts aggressively because it's strongly alkaline — that's the defining feature and the defining limitation. Per-use cost at retail is among the lowest in the APC category, making it a popular choice for shop and professional use where high volume matters.

Home detailers tackling engine bay cleaning, heavy wheel-well degreasing, or outdoor equipment will find Purple Power's cleaning power and price combination hard to beat. Skip it for interior cleaning, leather care, painted panels, or ceramic-coated surfaces — the strongly alkaline formula will strip wax and sealant and can damage leather at any meaningful concentration. For interior work, choose a pH-balanced or mild-alkaline APC designed for interior surfaces.

The SDS assigns a WARNING signal word with skin irritation (H315) and eye irritation (H319) classifications driven by the sodium silicate alkaline builder. Concentrate pH measures 11–12.35; at the recommended 10:1 working dilution the pH drops to approximately 10.3–11.0, retaining the H315/H319 irritation classifications at working strength. No inhalation hazard codes are present, and the SDS §8.3 explicitly exempts household and distribution settings from respiratory protection requirements. Sodium silicate in the formula flags an aquatic toxicant concern (pH disruption to aquatic ecosystems at high concentrations) — the product is drain-destined for exterior wash and engine bay rinse, both of which reach storm drains. Scores reflect working-solution chemistry at 10:1; concentrate chemistry is more aggressive.