Process for the production of quick-curing epoxide resin coatings which are resistant to chemicals and to weathering

Process for the production of chemically resistant, firmly adhering epoxide resin layers on solid surfaces by mixing a liquid component (A), which contains the epoxide compound, having on average more than one epoxide group in the molecule, with a liquid component (B) which contains the curing agent, shortly before use, with exclusion of unreacted organic solvents, applying this mixture to the surface, and subsequent curing, characterised in that

• a. the curing agent contained in the component (B) consists essentially of 1.7 to 15.5% by weight of Zn(BF.sub.4).sub.2, 7.0 to 65.0% by weight of a cyclic ether or thioether of the formula I ##STR7## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 denote hydrogen atoms or monovalent organic radicals and the radicals R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 can also be members of a ring system, R.sub.8 denotes a monovalent organic radical and Z denotes an oxygen atom or sulphur atom, or of a cyclic ether or thioether which contain, per molecule, at least two monovalent radicals of the formula IV ##STR8## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 denotes hydrogen atoms or monovalent organic radicals, and the radicals R.sub.1, R.sub.2 and R.sub.3 can also be members of a ring system, and Z denotes an oxygen atom or sulphur atom, 10 to 90% by weight of an acid ester of phosphoric acid or of pyrophosphoric acid or of a phosphonic acid ester which contains at least on cyclic phosphonate group with 5 or 6 ring atoms and 1.0 to 9.0% by weight of water, and that
• b. the components (A) and (B) are mixed in a ratio such as to provide 0.5 to 2.5 parts by weight of Zn(BF.sub.4).sub.2 per 100 parts by weight of the epoxide compound or of the epoxide compound mixture.