Diacetone alcohol is particularly suitable for use in removing soldering flux, since it removes not only rosin but also so-called 'white residues'.

The invention concerns the use, for cleaning electronic and electrical assemblies, of diacetone alcohol in water-miscible cleaning agents containing no halocarbons.

This paint contains an infrared absorbing dye (A), a resin (B) and a solvent (C), with diacetone alcohol being an essential component of the solvent (C) component; this near infrared absorption filter is formed by using said paint.