Nu-Calgon 4171-75 Evap Foam No-Rinse Coil Cleaner – 18 oz Aerosol

The Nu-Calgon 4171-75 Evap Foam Coil Cleaner is a professional-grade, self-rinsing foaming detergent formulated for cleaning HVAC evaporator and cooling coils. Designed for field and maintenance technicians, it incorporates surfactants and alkaline agents that dissolve grease, oil, and particulate buildup while providing corrosion protection for metals and system components. The aerosol format allows multidirectional application for use in confined or overhead service environments.

Details

• Manufacturer: Nu-Calgon
• Model Number: 4171-75
• Product Type: HVACP Coil Cleaner (Evaporator/Cooling Coils)
• Form: Aerosol – Self-Rinsing Foaming Detergent
• Container Size: 18 oz (510 g)
• State: Liquefied Gas
• Color: Clear
• Odor: Lemon Lime
• Composition:
  • 1–5% Butane
  • Diethylene Glycol Monoethyl Ether
  • Ethanol, 2-Butoxy
  • Propane
  • Tetrasodium Ethylenediaminetetraacetate (EDTA)
  • <1% Sodium Metasilicate
• Application Method: Aerosol spray – usable inverted or upright
• Cleaner Type: Alkaline foaming detergent with surfactant blend
• Rinsing Requirement: None – self-rinsing with condensate
• Corrosion Protection: Formulated with corrosion inhibitors
• Compliance: NSF Registered for use in and around food processing areas

Technical Application

Evap Foam No-Rinse is designed for cleaning evaporator coils, fan blades, and related heat exchange surfaces in HVAC and refrigeration systems. It is suitable for aluminum, copper, and steel components. Upon application, the foam expands to penetrate coil fin surfaces, emulsifying and lifting contaminants such as oil, grease, and dust. As the system operates, condensate water naturally rinses the cleaner from the surface, leaving a residue-free finish. The product’s corrosion inhibitors maintain metal integrity, while its non-acidic formulation allows safe use on a range of coil materials.

Specifications

• Physical State: Liquefied Gas (aerosol)
• Net Weight: 18 oz (510 g)
• Base Type: Alkaline, surfactant-based detergent
• Rinse Type: Self-rinsing via condensate
• Usable Orientation: 360° spray (upright or inverted)
• Corrosion Inhibitors: Integrated formulation for metal protection
• VOC Content: Complies with applicable air quality standards
• Safety Classification: NSF Registered for incidental food-contact areas

Summary

The Nu-Calgon 4171-75 Evap Foam Coil Cleaner provides an effective, self-rinsing solution for HVAC maintenance professionals requiring a high-performance, corrosion-safe coil cleaning agent. The 18 oz aerosol delivers alkaline foaming action with surfactant lift and condensate-assisted rinsing, optimized for evaporator coil cleaning in commercial and industrial service environments.