Environmental Protection Fiber Blanket
HISEA MARINE’s Environmental Protection Fiber Blanket is a high-performance, non-combustible insulation solution engineered specifically for the harsh conditions of the maritime industry. Formulated from premium basalt mineral wool or ceramic fibers, this blanket delivers exceptional thermal management, fire safety, and long-term durability, ensuring optimal performance for vessel integrity, operational efficiency, and crew comfort.
Overview
Application
Environmental protection fiber blankets have a wide range of applications on ships and are commonly used to insulate bulkwalls, decks, pipes and equipment of ships, especially in areas where temperature control is required, such as engine rooms, cold storage and residential areas.
Features
Superior Fire Safety and Compliance: Meets Class A non-flammable standards, complying with the stringent requirements of the International Maritime Organization. It effectively maintains structural integrity under high temperatures or open flames, producing no toxic fumes, ensuring critical escape and firefighting time for the ship, and is a reliable choice for ensuring navigational safety certification.
High Efficiency, Energy Saving, and Thermal Stability: With a thermal conductivity as low as 0.038 – 0.042 W/(m·K), it provides a wide application temperature range from -40°C to 700°C. It significantly reduces heat loss from the hull, stabilizes the temperature of the engine room, pipelines, and living quarters, and directly reduces fuel consumption and carbon emissions. Its low heat capacity also facilitates rapid equipment reaching operating temperatures.
Exceptional Corrosion Resistance and Moisture Resistance: Water repellency > 98%, volumetric moisture absorption < 1%, and the material itself possesses natural acid and alkali inertness. It completely resists corrosion from the high-salt, high-humidity marine atmosphere, preventing metal corrosion and insulation failure caused by internal condensation. The material is non-absorbent, ensuring long-term stable performance and eliminating the need for replacement throughout its lifespan.
Its environmentally friendly and construction-friendly design is free of CFCs, HCFCs, and asbestos. Product densities are available from 60kg/m³ to 120kg/m³, and thicknesses range from 25mm to 100mm. Environmentally friendly throughout its entire lifecycle, from production to disposal, it aligns with green shipbuilding principles. The blanket's flexibility allows for easy cutting, wrapping, and application to complex hull structures (such as pipes, valves, and curved bulkheads), significantly improving installation efficiency and reducing labor costs.
Excellent sound insulation and noise reduction performance is achieved through its porous fiber structure, resulting in a superior sound absorption coefficient, particularly effective against low- and mid-frequency equipment noise. It effectively absorbs mechanical noise from the engine room and pump house, reducing noise transmission to living areas and creating a more comfortable and health-compliant working and resting environment for crew members.
Picture of Environmental Protection Fiber Blanket

