AQUANOX A4639 is an engineered aqueous cleaning fluid that has proven effective on a wide range of soils including the latest lead-free no clean formulations at low operating temperatures and concentrations. A4639 was designed for use in batch spray systems and provides exceptional cleaning results and protection of metallic surfaces with minimal monitoring and no sump-side additives.
The easy to control A4639 protects solder joints from chemical attacks and is effective on B-side misprints. The biodegradable aqueous solution does not contain CFCs or HAPs.
AQUANOX A4639 is available in one, five, and 55 gallon containers.