Solvent mixt. for two component epoxy! resin or polyurethane - comprises aromatic hydrocarbon esp. xylene and tert-alcohol esp. tert-butanol

摘要

A solvent mixt. for two component epoxy resin or polyurethane system comprises 50-90 wt.% aromatic hydrocarbons (I) and 10-50 wt.% tert-alcohols (II). The solvent mixt. pref. comprises 75-85 wt.% (I) and 15-25 wt.% (II). (I) is esp. xylene. (II) pref. has a b.pt. below 180 deg.C and is diacetone alcohol tert.pentanol or esp. tert-butanol. Corrosion resistant epoxy resin mixts. are coated with polyurethane to protect the surface from weathering, but different solvents are used for each polymer. Since the solvent mixt. can be used for both epoxy resins and polyurethanes, no confusion can result when e.g. cleaning appts., adjusting sprayability or prepn. of the coating compsns.