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Lightweight Fireproof Expanded Slate Board

Updated: 2026-07-22

Overview

Lightweight fireproof expanded vermiculite board is a specialized insulation material composed of expanded vermiculite and inorganic binders. It is widely used in construction and industrial applications due to its excellent fire resistance and thermal insulation properties. The material is lightweight, making it easy to handle and install, while its porous structure enhances its insulation capabilities. Expanded vermiculite, the primary component, is a naturally occurring mineral that expands when heated, creating a lightweight and fire-resistant material. When combined with binders, it forms a durable board that can withstand high temperatures and provide effective insulation. This makes it a popular choice for fireproofing and thermal management in buildings, industrial equipment, and marine applications.

Physical and Chemical Properties

The lightweight fireproof expanded vermiculite board is characterized by its low density, typically ranging from 0.6 to 1.2 g/cm³. This low density contributes to its ease of handling and installation. The material is non-combustible, with a high melting point, making it suitable for high-temperature environments. Chemically, the board is inert and resistant to most solvents and acids. It is insoluble in water, though prolonged exposure to moisture can affect its structural integrity. The porous nature of the board provides excellent thermal insulation and sound absorption properties, making it a versatile material for various applications.

Main Applications

The primary use of lightweight fireproof expanded vermiculite board is in construction, where it is employed for fireproofing and insulation. It is commonly used in fireproof partitions, ceilings, and walls in commercial and residential buildings. The material's ability to withstand high temperatures also makes it ideal for insulating industrial furnaces and boilers. In addition to construction, the board is used in shipbuilding for fireproofing and insulation in marine environments. Its lightweight nature reduces the overall weight of the structure, which is a critical factor in marine applications. Other uses include soundproofing in theaters and recording studios, where its acoustic properties are highly valued.

Safety and Storage

While lightweight fireproof expanded vermiculite board is non-toxic, handling the material can generate dust that may cause respiratory or skin irritation. It is recommended to use protective gear such as masks and gloves during installation or cutting. Proper ventilation should be maintained in work areas to minimize dust exposure. Storage conditions are crucial to maintaining the board's quality. It should be kept in a dry, ventilated area away from moisture and direct sunlight. Stacking should be done carefully to prevent damage, and the boards should be covered with a protective layer if stored outdoors for extended periods.

B2B Procurement Guide

When procuring lightweight fireproof expanded vermiculite board, it is essential to verify the material's certifications, particularly for fire resistance and thermal conductivity. Reputable suppliers should provide test reports and compliance certificates with international standards such as ASTM or EN. Key specifications to consider include density, thickness, and thermal conductivity. The price varies based on these factors, with thicker and higher-density boards generally costing more. Bulk purchases may qualify for discounts, but storage and transportation logistics should be planned to avoid damage. Always request samples to evaluate quality before placing large orders.

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