| 摘要 |
The invention concerns a method for producing a coating having high hardness, impact resistance and chemical attack resistance, characterised in that it consists in: applying on a substrate, simultaneously or successively: A) a polymer composition containing hydroxyl groups; B) an amine-formaldehyde type resin composition; C) a polyisocyanate composition containing at least 30 mol % of compounds comprising at least a biuret group; D) optionally the usual additives; and heating said substrate to a temperature enabling said constituents to be crosslinked. |
