
B2 Class Flame Retardant Polyol Formula System for Intermittent Panels Insulation Material. Flame Retardant Performance: Classified as B1, B2, B3 with self-extinguishing properties per ASTM 1692-MD/74. High Insulation Efficiency: Thermal conductivity as low as 0.023 W/m.k with 90% closed-cell rate. Customization Available: Full customization, minor customization, and customization from samples or designs supported. Fast Delivery: Lead time within 3-5 days after payment for standard orders. Versatile Application: Ideal for rigid polyurethane insulated panels processed by filling or mutual pouring. Quality Assurance: Traceability of raw materials and random visual/function inspection for finished products. Flexible Payment Terms: Accepts T/T, LC, PayPal, Western Union, D/P, and small-amount payments. Manufacturer Direct: Direct supply from manufacturer with 4 production lines and 2 R&D engineers.