Montaje de Molduras de Luz Indirecta LED Paso a Paso
Manual profesional sobre la separación óptima del techo (10 a 15 cm), disipación térmica de tiras LED y uniones invisibles.
La correcta instalación de las molduras para luz indirecta LED de poliuretano crea un baño de luz suave y uniforme en el techo sin sombras ni puntos calientes.

Paso 1: Trazado Perimetral a 10–15 cm del Techo
- Surface Inspection and Reference Line Layout — Inspect the wall and ceiling surfaces for levelness and clean away dust or loose material. Measure down from the ceiling line to establish a clearance distance between 10 cm and 15 cm, then snap a continuous chalk line along the perimeter wall to guide lower profile placement. Estimated Duration: 30 minutes Common Mistake: Installing profiles over dusty or flaking paint surfaces without cleaning, leading to premature adhesive bond failure.
- Measuring and 45-Degree Miter Cutting — Measure the wall perimeter accurately. Cut corner joints at a precise 45-degree miter angle using a fine-tooth miter saw. Dry-fit corner pieces against the wall to verify joint tightness before applying adhesive. Estimated Duration: 45 minutes Common Mistake: Using coarse saw blades that tear the high-density polyurethane edges, creating wide seams that require excessive filling.
- Polyurethane Adhesive Application — Apply continuous beads of polyurethane (PU) mounting adhesive along the rear mounting flanges that contact the wall surface. Do not use standard silicone adhesives. Ensure even coverage along the entire length of the profile. Estimated Duration: 30 minutes Common Mistake: Using standard silicone sealant instead of dedicated polyurethane mounting adhesive, causing long-term adhesion failure.
- Profile Mounting and Mechanical Screw Fixing — Press the profile firmly onto the marked reference line. Immediately drill countersunk pilot holes through the profile into the wall structure at 40 cm to 50 cm intervals. Secure the profile using wall anchors and screws until flush with the material surface. Estimated Duration: 60 minutes Common Mistake: Relying exclusively on adhesive and skipping mechanical screw fixings, which violates safety protocols for overhead moldings.
- Joint Sealing and Sanding Preparation — Fill profile butt joints, corner miters, and countersunk screw heads with suitable joint compound or polyurethane joint filler. Allow the filler to cure completely according to manufacturer instructions, then sand smooth using grano 180-220 sandpaper. Estimated Duration: 45 minutes (excluding curing time) Common Mistake: Sanding with coarse sandpaper below 180 grit, which scratches the factory-primed polyurethane surface.
- Priming and Final Paint Coating — Although profiles arrive factory-primed, applying an additional primer coat over sanded filled joints ensures uniform absorption. Finish with two coats of high-quality interior paint. For outdoor or high-UV exposed installations, UV-resistant exterior paint is mandatory. Estimated Duration: 90 minutes (excluding dry times) Common Mistake: Using standard non-UV resistant interior paints on exterior applications, leading to surface discoloration over time.
Paso 2: Corte a Inglete y Pegado Exclusivo a Pared
Corte los perfiles de longitud 2400-2440 mm a 45° aplicando el margen 10%. Aplique cordones continuos de adhesivo adhesivo de montaje a base de PU en la solapa mural inferior del perfil con densidad 150-220 kg/m³ (objetivo de producción ~160 kg/m³).
Paso 3: Colocación del Canal Disipador de Aluminio y Tira LED
Pegue una pletina o perfil de aluminio en el alojamiento interior de la moldura y adhiera la tira LED sobre el metal para asegurar su correcta refrigeración. Tiempo de curado: aproximadamente una hora.
Paso 4: Sellado de Juntas, Lijado y Pintura
Rellene los empalmes con masilla acrílica, lije con lija fina 180–220 grano 180-220 y pinte con la pintura de la estancia sobre la imprimación imprimación acrílica blanca monocomponente en temperaturas -100 °C / +80 °C. Inmune al agua (inferior al 1%).
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