Water-based paint based on elastic acrylic copolymers formulated with polyethylene fibers, free from plasticizers, which forms a suitable coating to resist micro-cracks. It is waterproof and breathable, with high compatibility and adhesion features, filling power and coverage on different types of support. The product, in the colours with the light reflection value LRV>25, is also suitable as anti-crackling in insulation insulation systems. This product can be tinted with the AC16 tinting system.