Instalación de molduras y borduras intermedias de pared: Guía paso a paso

Cómo instalar borduras a media altura: Alineación horizontal precisa, cortes en inglete limpios y sellado de juntas para dividir colores en la pared.

La instalación de borduras y molduras intermedias de poliuretano a media altura permite delimitar zócalos, transiciones de color y papeles pintados de forma pulcra.

Herramientas y preparación del soporte

Step 1: Surface Inspection and Level Marking — Measure and mark the horizontal height line across the wall using a digital laser level. Clean dust and grease from the substrate using a dry cloth. Duration: 15–20 minutes. Common Mistake: Relying on floor-to-wall distance instead of a laser level, resulting in slanted installation lines over uneven floors.
Step 2: Measuring and 45-Degree Miter Cutting — Measure wall segments accurately and transfer dimensions to the border profile. Execute 45-degree corner joints and 30-degree bevel joints for straight length extensions using a fine-toothed miter saw. Duration: 25–30 minutes. Common Mistake: Cutting miter angles in the wrong direction for internal versus external corners.
Step 3: Polyurethane Adhesive Application — Apply continuous beads of polyurethane mounting adhesive along the rear bonding channels and joint cross-sections of the profile. Never use silicone adhesive. Duration: 10–15 minutes. Common Mistake: Applying insufficient adhesive on cut joint edges, leading to hairline cracks after thermal expansion.
Step 4: Positioning and Mandatory Screw Fixing — Press the border molding firmly against the wall alignment line. Drive mechanical screws through pre-drilled pilot holes into wall plugs spaced every 40 to 60 cm for secure anchorage. Duration: 30–40 minutes. Common Mistake: Relying solely on adhesive without mechanical screw fixing, causing profile sagging before curing.
Step 5: Joint Filling with Putty — Fill screw countersinks and profile connection joints using specialized joint putty. Remove excess material immediately using a flexible spatula. Duration: 20–25 minutes. Common Mistake: Applying thick coats of putty without wiping excess material, increasing sanding labor.
Step 6: Sanding and Surface Levelling — Allow the putty to cure completely according to manufacturer instructions. Sand filled joints flush with the profile surface using fine grano 180-220 sandpaper. Duration: 15–20 minutes. Common Mistake: Using coarse sandpaper below 120 grit, which gouges the rigid polyurethane body and damages factory priming.
Step 7: Priming and Double-Coat Final Painting — Apply an optional acrylic spot primer on filled joints if needed. Finish with two coats of water-based interior paint or UV-resistant exterior paint depending on application location. Duration: 40–60 minutes (excluding drying intervals). Common Mistake: Using standard interior paint on outdoor installations, causing premature UV discoloration.

Paso 1: Trazado de la línea guía horizontal (Duración: 15 min.)

Proyectar el haz del nivel láser a la altura deseada (habitualmente entre 90 y 110 cm del suelo) y trazar una línea tenue con lápiz. La densidad maciza de 150-220 kg/m³ (objetivo de producción ~160 kg/m³) asegura que la moldura no flexione.

Paso 2: Medición y corte de ingletes en esquina (Duración: 25 min.)

Cortar los extremos de las barras de 2400-2440 mm a 45 grados para esquinas interiores y exteriores, previendo un margen de merma de corte del 10%.

Paso 3: Aplicación de adhesivo y fijación a la pared (Duración: 30 min.)

Extender cordones continuos de adhesivo PU adhesivo de montaje a base de PU en el dorso y cola especial en las testas de corte, presionando firmemente contra la pared hasta el inicio del fraguado (aproximadamente una hora).

Paso 4: Masillado de uniones, lijado y pintura (Duración: 25 min.)

Sellar las juntas con masilla acrílica, lijar suavemente con grano 180-220 y aplicar la pintura decorativa sobre la imprimación imprimación acrílica blanca monocomponente. 0% absorción de agua inferior al 1% en el rango -100 °C / +80 °C. Oferta válida 7 días, entrega en fábrica (ex works).