Polyurethane Decoration Product Care and Cleaning Guide

Rigid polyurethane architectural elements feature a closed-cell structure produced with a target density of 150-220 kg/m³ (production target ~160 kg/m³) (within a range of 150-220 kg/m³ (production target ~160 kg/m³)). With a water absorption rate under 1%, the core material resists moisture penetration, rot, and swelling. Architectural profiles manufactured by Polure arrive factory-primed, establishing a uniform base for paint application. Understanding these physical limits ensures maintenance practices maintain surface performance without damaging the substrate.

Regular interior cleaning of polyurethane decorative elements requires non-abrasive tools to preserve the painted topcoat. Neutral pH detergent solutions mixed with warm water effectively remove ambient dust and surface soil. High-pressure washing or abrasive scrubbing pads must be avoided, as mechanical scraping damages paint finishes. Because closed-cell polyurethane absorbs less than 1% moisture, gentle damp wiping poses no threat of internal warping or core degradation.

Exterior polyurethane architectural profiles face continuous environmental exposure, making UV-resistant topcoat paint mandatory. Although rigid polyurethane operates safely from -100 °C / +80 °C, direct solar radiation degrades standard non-UV paints over time. Inspect exterior seams, mechanical screw fixings, and surface coatings periodically. Clean exterior surfaces using low-pressure water rinsing and soft brushes to clear debris without breaking the paint seal.

Refinishing polyurethane decorative profiles requires structured surface preparation to ensure proper paint bonding. Begin by thoroughly cleaning the surface, followed by light sanding with 180-220 grit sandpaper to create mechanical adhesion. While factory-primed polyurethane accepts water-based topcoats directly, applying an additional coat of primer remains an optional step for enhanced durability in severe climates. Apply two coats of exterior or interior topcoat paint, allowing full drying between applications.

Maintaining polyurethane architectural elements requires strict avoidance of incompatible chemicals and tools. Silicone adhesives and silicone-based cleaners must never be used, as silicone contaminates surfaces and prevents future paint bonding. Solvent-based chemicals, acetone, and aggressive acids strip protective coatings and damage underlying surfaces. Furthermore, avoid steam cleaning above +80 °C, as thermal spikes can loosen polyurethane assembly adhesives and deform precise profile edges.

Polyurethane decorative columns, capitals, and pilasters function strictly as non-structural decorative elements and cannot carry load. Architectural columns produced by Polure must never be utilized as load-bearing supports during structural modifications or installations. Ensuring that surrounding mechanical screw fixings and polyurethane assembly adhesives remain intact preserves alignment and joint stability across the entire architectural assembly.