HD-S2 Heavy Duty Step Two – Industrial Alkaline Organic Soil & Grease Remover

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**Overview** HD-S2 Heavy Duty Step Two is a high-strength caustic cleaner engineered to remove heavy organic soils, oils, grease, soot, proteins, and carbon buildup. Used immediate ly after HD-S1, it completes the industrial two-step washing process for maximum cleaning efficiency on heavily soiled fleets and equipment. **Key Benefits** - Removes organic contaminants including oils, greases, soot, and carbon - Completes the cleaning reaction initiated by HD-S1 - Extremely effective on industrial and commercial vehicles - Greatly reduces manual scrubbing in high-soil environments - Performs exceptionally well with pressure washers and hot water systems - Built for construction, industrial, and municipal fleets **Dilution Instructions** - General cleaning: 50 mL per 4 L - Normal soil: 100 mL per 4 L - Heavy soil: 200 mL per 4 L - Difficult organic buildup: 500 mL per 4 L **Application / Use** 1. Apply immediately after HD-S1 while the surface is still wet. 2. Spray directly over HD-S1 to activate the cleaning reaction. 3. Allow a short dwell time. 4. Rinse thoroughly with a pressure washer or hot water wash system. **Ideal For** - Industrial fleets and long-haul transport trucks - Construction vehicles and heavy equipment - Waste haulers and municipal service fleets - Equipment exposed to oils, grease, soot, and organic grime - High-soil environments requiring strong alkaline cleaning **Professional Use Warning** This is a caustic industrial cleaner intended for trained professionals only. Avoid use on polished aluminum, chrome, stainless accents, or sensitive metals. Always use proper PPE and follow safe handling procedures. **Safety & SDS** Use appropriate PPE when handling chemical products. SDS documents are available in our library. Show more