Marine polyurethane foam is a lightweight, durable insulation material designed for marine applications. It offers excellent thermal and acoustic insulation, resisting moisture and harsh marine environments. This foam is commonly used in boats, ships, and offshore structures for energy efficiency and comfort.

Size: Available in sheets, blocks, or custom-cut dimensions; typical thickness ranges from 10mm to 100mm.

Grade: High-density (40-60 kg/m³) or low-density (20-30 kg/m³) options for varying insulation and buoyancy needs.

Viscosity: Liquid components (polyol and isocyanate) typically range from 200-600 cP before curing.

Buoyancy: Provides positive buoyancy with a buoyancy force of 50-70% of its volume in water.

Material: Polyurethane foam (PUR or PU), either rigid or flexible, with closed-cell structure for water resistance.

Thermal Conductivity: 0.022-0.030 W/m·K for effective insulation.

Water Absorption: <5% by volume due to closed-cell structure.

Operating Temperature: -40°C to +80°C, suitable for marine environments.

Fire Resistance: Often meets ASTM E84 Class A or B standards with flame-retardant additives.

Compressive Strength: 100-300 kPa, depending on density.

Marine Polyurethane Foam and Insulation Materials may comply with maritime standards such as SOLAS, IMO, or specific classification society requirements. Always verify with the manufacturer for exact certifications.