For importers, contractors and project purchasers, knowing core rock wool board parameters helps you select suitable products and avoid project quality risks.
1. Density (kg/m³) Density directly affects thermal performance and mechanical strength. Common density ranges from 50kg/m³ to 150kg/m³. Low‑density boards are for common thermal insulation; high‑density rock wool boards are required for exterior wall load‑bearing and high‑temperature industrial environments.
2. Thickness Thickness decides the final heat‑insulation effect. Different climate zones and project standards require different thickness options. Custom thickness is available for special‑demand projects.
3. Fire Rating Qualified rock wool board shall reach non‑combustible Class A level. This is the most critical index for fire‑safety related construction and industrial projects.
4. Water repellent rate For exterior wall or humid environment usage, high water‑repellent rock wool is strongly recommended, to prevent performance drop caused by moisture absorption.
5. Dimension tolerance Standard size is 1000×600mm, custom sizes are supported. Confirm length, width tolerance before bulk order.
Tips: Do not only compare unit price. Low‑cost rock wool with insufficient density will cause poor insulation effect and hidden fire risks. If you have project parameter requirements, send us your specification sheet, we can offer matching quotation quickly.