The invention provides an environment-friendly constant-temperature hole sealing agent for aluminum and an aluminum
alloy. The environment-friendly constant-temperature hole sealing agent comprises the following components of, by total weight, 3%-15% of
magnesium acetate, 0%-10% of
cobaltous acetate, 5%-15% of
tripropylene glycol methyl
ether, 5%-15% of surfactants, 0%-10% of dust inhibiting agents, 0%-8% of accelerants, 0.5%-10% of pH buffer agents, 0%-10% of
corrosion inhibitors and the balance deionized water. The environment-friendly constant-temperature hole sealing agent is good in stability and
permeation effect; a hole sealing film is dense and can completely seal gaps on the surface of a workpiece; the hole sealing condition requirement is low, after hole sealing, the surface of the workpiece is flat, bright and free of discoloring,
powder forming is avoided, oil
fouling resistance and
fingerprint resistance are achieved, and the strength,
hardness and
corrosion resistance ofthe workpiece are improved; the environment-friendly constant-temperature hole sealing agent does not contain elements of
nickel,
fluorine,
chromium and the like and is safe and
environmentally friendly,
pollution to the operation environment is avoided, and damage to health of a
human body is avoided; and the cost is low,
energy consumption is less, and the environment-friendly constant-temperature hole sealing agent is suitable for being produced industrially on a large scale.