Heavy Duty Two-Step Bundle – Fleet Cleaning System (20L + 20L)

**Overview**  
The Heavy Duty Two-Step Bundle provides an industrial-strength cleaning system designed for severe inorganic buildup followed by heavy organic contamination. Built for construction fleets, waste vehicles, tankers, and high-soil commercial equipment, this system delivers maximum cleaning power for the toughest conditions.

**What’s Included**  
**HD-S1 Heavy Duty Step One – Industrial Acid Pre-Soak & Inorganic Soil Remover (20 L)**  
A powerful acid-based cleaner engineered to dissolve oxidation, mineral deposits, bonded road film, and severe inorganic buildup. Not safe for polished or sensitive metals.

**HD-S2 Heavy Duty Step Two – Industrial Alkaline Organic Soil & Grease Remover (20 L)**  
A high-strength caustic cleaner designed to remove oils, grease, soot, proteins, and organic grime as the second stage of the two-step process.

**Key Benefits**  
- Aggressive cleaning power for industrial and heavily soiled vehicles  
- Attacks both inorganic buildup (Step One) and organic contamination (Step Two)  
- Restores dull, weathered, and neglected fleet surfaces  
- Greatly reduces manual scrubbing in high-soil environments  
- Works exceptionally well with pressure washers and hot water units  
- Built for heavy-duty commercial, industrial, and municipal use  

**Dilution Instructions**

*HD-S1 Heavy Duty Step One*  
- General cleaning: 50 mL per 4 L  
- Normal soil: 100 mL per 4 L  
- Heavy soil: 200 mL per 4 L  
- Severe buildup: 500 mL per 4 L  

*HD-S2 Heavy Duty Step Two*  
- 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**

*Heavy Duty Step One (HD-S1)*  
1. Apply bottom-to-top or evenly across surfaces.  
2. Do not allow product to dry.  
3. Follow immediately with Step Two.

*Heavy Duty Step Two (HD-S2)*  
1. Apply directly over the Step One solution while still wet.  
2. Allow a brief dwell time.  
3. Rinse thoroughly with a pressure washer or hot water wash system.

**Ideal For**  
- Transport fleets and long-haul trucks  
- Construction vehicles and equipment  
- Waste vehicles and municipal fleets  
- Tankers and industrial service trucks  
- High-mileage or neglected equipment with extreme buildup  
- Operations requiring maximum cleaning power  

**Professional Use Warning**  
Both products are professional-grade cleaners. Always use proper PPE and avoid contact with polished metals or sensitive surfaces.

**Safety & SDS**  
Use appropriate PPE when handling chemical products. SDS documents are available in our library.