QHB-6600 General Eco-friendly Blended Polyol for Rigid PU Foam Spray

Product Description

QHS-6600 is a pre-blended polyol specially developed for on-site rigid polyurethane foam spraying applications. It uses HFC-245fa as the blowing agent, contains no HCFC-141b, and fully complies with international environmental protection standards with ODP (Ozone Depletion Potential) = 0. The product is compounded with high-functionality polyether polyol, crosslinker, high-efficiency catalyst, foam stabilizer and flame retardant. When reacted with polymeric MDI, it forms closed-cell rigid polyurethane foam with excellent performance, featuring ultra-low thermal conductivity, strong adhesion to various substrates, and good dimensional stability. It is a cost-effective and versatile product suitable for most general spray insulation projects.

Technical Specifications

Foam & Reaction Properties

• Cream Time: 3–5 seconds
• Gel Time: 8–12 seconds
• Tack-Free Time: 20–25 seconds
• Expansion Ratio: 30–35 times
• Foam Density: 32–38 kg/m³
• Thermal Conductivity (25℃): 0.020–0.022 W/m·K
• Closed-Cell Content: ≥92%
• Compressive Strength: ≥150 kPa
• Adhesion Strength (to concrete): ≥0.15 MPa

Application

• Building Insulation Systems: External wall insulation, integrated roof insulation and waterproofing, underfloor heating insulation layers, especially suitable for energy-saving renovation of old buildings, applicable for construction on various substrate surfaces such as concrete, masonry, and wood.
• Cold Chain Logistics: Insulation for cold storage warehouses, refrigerated trucks, and container compartments, providing efficient thermal insulation performance to maintain a stable low-temperature environment and extend the freshness period of goods.
• Industrial Equipment: Insulation for storage tanks, pipelines, reactors, and other industrial equipment, reducing heat loss and improving energy utilization efficiency.
• Special Fields: Insulation for prefabricated houses, mobile homes, and ship cabins, with convenient construction and no mold restrictions.

Storage & Transportation

• Store in a cool, dry, and well-ventilated warehouse, avoid direct sunlight, and control the storage temperature between 5–35℃.
• Keep away from fire sources, heat sources, and oxidants; do not store with strong acids and alkalis.
• Product packaging: 200L iron drum or 1000L IBC drum, sealed for storage. Use as soon as possible after opening, and re-seal tightly if not used up.
• Shelf life: 6 months from the date of production. Expired products can be used only after re-inspection and qualification.
• Handle with care during transportation to prevent packaging damage, and transport as non-dangerous goods.