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

**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 immediately 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.