Nu-Calgon 4330-05 - Scale Dissolver, Liquid 5 gal. pail
Nu-Calgon 4330-05 – Liquid Scale Dissolver, 5 Gal Pail
Nu-Calgon’s Liquid Scale Dissolver (part #4330-05) is a high-strength, fast-acting descaling solution designed for industrial and commercial HVAC systems. It quickly dissolves calcium carbonate, lime, and iron oxide deposits while protecting metal components from corrosion. The low-foam formulation ensures smooth circulation, making it ideal for cooling towers, boilers, and heat exchangers.
Key Features & Benefits
- Powerful hydrochloric acid-based formula for rapid mineral scale removal
- Low-foaming action enhances cleaning efficiency and prevents overflow
- Built-in corrosion inhibitors protect copper, steel, and brass components
- pH color-change indicator signals when solution is neutralized
- Safe for use on copper, steel, iron, brass, rubber, plastic, and wood (not for galvanized steel)
- Clear orange liquid with acidic odor and specific gravity of approximately 1.107
Typical Applications
- Cooling towers and evaporative condensers
- Closed chilled water loops
- Hot water and steam boilers
- Shell-and-tube condensers
- Water treatment systems
Usage & Directions
- Drain and flush the system to remove debris and sludge.
- Refill with water, adding 1 gallon of Liquid Scale Dissolver per 20 gallons of system water.
- Vent all tanks or enclosures to avoid pressure buildup.
- Circulate until scale dissolves completely.
- Monitor color: green/light blue = active; blue/purple = spent.
- When the solution stays green for 15–30 minutes, descaling is complete.
- Rinse system thoroughly with clean water.
Important: Never leave the solution in the system for more than 6 hours. Heavy scale removal may reveal pre-existing leaks.
Safety & Handling
- For professional use only
- Corrosive – causes severe skin and eye burns
- Wear acid-resistant gloves, goggles, and protective clothing
- Use in a well-ventilated area
- Avoid galvanized surfaces (may produce hydrogen gas)
- Dispose of waste according to local regulations
- UN 1789 – Corrosive Liquid, Class 8
Technical Specifications
| Part Number | 4330-05 |
| Container Size | 5 U.S. gallons (≈ 18.9 L) |
| pH (undiluted) | < 1 |
| Specific Gravity | ~ 1.107 |
| VOC Content | < 0.1 % |
| Color / Appearance | Clear orange liquid with acidic odor |
| Net Weight | ≈ 47 lb (21.3 kg) |
| Shipping Weight | ≈ 50 lb (22.7 kg) |
| Package Dimensions | ≈ 12 in (L) × 12 in (W) × 15 in (H) |
| Container Type | 5-gallon HDPE pail |
| Package Quantity | 1 Item |
|---|---|
| Item Returns | Sorry, the item can't be returned |
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