Come verniciare gli stucchi in poliuretano : Guida
Finiture a regola d'arte : Perché il primer di fabbrica richiede una leggera carteggiatura e come scegliere le pitture elastomeriche per esterni.
La corretta verniciatura dei profili in poliuretano valorizza i dettagli scultorei e assicura una protezione duratura contro raggi solari e intemperie.
Avvertenza Fondamentale : Il Primer di Fabbrica Non è Finitura
- Substrate and Environmental Preparation — Verify that the wall or ceiling substrate is completely clean, structurally sound, and dry. Ensure room temperature is maintained within standard application limits before beginning installation.
- Precision Cutting and Adhesive Application — Execute 45-degree miter cuts on profile ends using a fine-toothed saw. Apply a continuous bead of dedicated polyurethane assembly adhesive along the joint edges and mounting surfaces. Standard silicone adhesives must not be used.
- Mechanical Fixing with Screws — Press the polyurethane element firmly into place against the substrate. Drive corrosion-resistant screws through the profile into the wall to provide mandatory mechanical anchoring while the polyurethane adhesive cures.
- Joint Filling and Surface Patching — Apply an appropriate architectural filler or joint putty over all screw heads, miters, and connection seams to create a smooth, continuous surface level with the profile face.
- Surface Sanding with grana 180-220 Paper — Allow the joint filler to cure completely. Lightly sand all patched areas and the factory-primed profile surface using grana 180-220 sandpaper to eliminate release agent residues and smooth out filler transitions. Wipe away all dust.
- Application of System Primer — Apply a uniform layer of system primer compatible with your chosen topcoat manufacturer over all filled joints and sanded surfaces to ensure homogeneous paint suction.
- Topcoat Painting — For indoor applications, apply 2 coats of quality interior paint. For outdoor applications, apply an elastic, UV-resistant exterior paint system designed for facade durability.
Fase 1 : Carteggiatura di Opacizzazione (Tempo : 15 min)
Carteggiare delicatamente con carta abrasiva grana 180-220 (grana 180–220) per rimuovere eventuali micro-tracce di distaccante siliconico da stampo in densità 150-220 kg/m³ (obiettivo di produzione ~160 kg/m³).
Fase 2 : Stuccatura Giunti e Fondo Uniformante (Tempo : 20 min)
Dopo aver incollato le aste da 2400-2440 mm con adesivo adesivo di montaggio a base PU (indurimento in circa un’ora), applicare una mano di primer uniformante sulle stuccature.
Fase 3 : Tinteggiatura a Due Mani all'Interno o all'Esterno (Tempo : 30 min)
Applicare 2 mani di idropittura opaca all'interno o pittura elastomerica con filtri UV all'esterno a -100 °C / +80 °C. idrorepellente (inferiore all’1%). Offerte 7 giorni, consegna franco fabbrica.