55 gal. Drum AP200 HFO Closed-Cell Polyurethane Resin Spray Foam, Regular Version (Side B) | ALP-AP200-HFO-REG-B

Alpha Polymers AP200 HFO resin is also built for code compliance and long-term reliability. The cured foam exhibits strong fire performance (flame-spread index 25, smoke-developed index 450 in testing) per its evaluation report. Its formulation supports an energy-efficient building envelope as it seals air leaks, provides continuous insulation, and resists water vapor transmission, all while maintaining its closed-cell structure. For best results, the resin drums should be stored between 55F and 70F and used within 6 months to preserve performance.

• Contributes to seamless thermal insulation and an effective air barrier
• Forms a 2.0'¯pcf closed-cell foam for high durability and structural strength
• Provides low vapor permeance, supporting Class II vapor-retarder performance
• Maintains stable viscosity even in summer application conditions
• Spray-applied forming a seamless thermal envelope and can adhere to a wide range of substrates