Core Manufacturing Process
HPL is produced by impregnating decorative paper and kraft paper with melamine and phenolic resins respectively, followed by drying, cutting, stacking and curing under high temperature and pressure. Under 150°C (300°F) and 1,430 psi pressure, the layered materials are pressed for about one hour. The final process includes trimming, sanding and quality inspection to ensure consistent performance.
Key Material & Formulation
Fire-retardant boards are available in various base substrate:
- Wood-based substrates: MDF, particleboard and plywood bonded with urea-formaldehyde (UF), phenolic (PF) or melamine-formaldehyde (MF) resins, combined with halogen, phosphorus, nitrogen or halogen-free flame retardants (e.g., aluminum/magnesium hydroxide).
- Mineral-based substrates: Calcium silicate board, gypsum board, cement board, magnesium oxide board and other non-combustible materials.
Main Applications
Fire-retardant laminates are widely used in commercial and public spaces, including chain stores, hotels, healthcare facilities, offices and urban renewal projects. They are commonly found in kitchen countertops, wall cladding, cabinet doors and lab work surfaces, offering fire resistance, heat resistance, wear resistance, water resistance, stain resistance and mold-proof properties.