Acetone for HVAC

Brazing and Soldering Preparation

Acetone is the standard for cleaning copper tubing and fittings before brazing. It removes cutting oils, fingerprints, and surface contaminants that can compromise joint quality and introduce impurities into refrigerant circuits.

Refrigerant Line Flushing

During system changeouts or compressor replacements, acetone is used to flush residual oils and debris from refrigerant linesets. Thorough line flushing helps ensure the new system operates with clean internal surfaces.

Component Degreasing

Compressor housings, evaporator coils, condenser coils, and fan assemblies accumulate oil films and particulate over time. Acetone cuts through these deposits efficiently during maintenance and rebuild operations.

Surface Preparation for Sealants and Adhesives

Duct sealants, mastic, and adhesive-backed insulation bond more reliably to clean surfaces. A wipe-down with acetone removes dust, oils, and oxidation before application on sheet metal and fiberboard ductwork.

Equipment Cleaning

Hand tools, gauges, manifold sets, and vacuum pump components benefit from periodic acetone cleaning to remove refrigerant oil buildup and maintain accurate readings.

Acetone is a highly flammable solvent. Proper handling in HVAC environments — particularly around ignition sources like torches and electrical panels — is essential.

• Review the SDS before first use and keep a copy accessible on-site
• Ventilation: Use in well-ventilated areas or outdoors; avoid use in confined mechanical rooms without adequate airflow
• PPE: Wear chemical-resistant gloves (nitrile recommended) and safety glasses; use respiratory protection if ventilation is limited
• Storage: Keep in original containers, tightly sealed, in a cool and well-ventilated area away from heat sources, open flames, and direct sunlight
• Flammability: Keep away from brazing torches and other ignition sources during use; allow adequate flash-off time before applying flame to cleaned surfaces
• Disposal: Follow local, state, and federal regulations for solvent disposal; do not pour down drains

• Certificate of Analysis (COA): Documents purity, water content, and other quality parameters for each production lot. Available upon request.
• Safety Data Sheet (SDS): Complete handling, storage, exposure, and emergency information. Included with every order.

Whether you need a case of quarts for your service fleet or a tote for your warehouse, Alliance Chemical has the inventory and logistics to keep your supply consistent. Contact us for pricing, bulk order quotes, or technical questions about using acetone in your HVAC applications.