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Vermiculite is a naturally occurring mineral that expands when heated, resulting in a lightweight, fire-resistant material. It is formed from the weathering of biotite or phlogopite and is characterized by its layered structure. When heated to high temperatures, vermiculite expands significantly, creating a material that is useful in various industrial applications due to its insulating and cushioning properties.
| Expansion Ratio | Up to 30 times its original volume |
| Color | Typically light brown to golden |
| Moisture Content | Usually less than 3% |
| Density | Ranges from 80 to 150 kg/m┬│ |
| Thermal Conductivity | 0.04 to 0.06 W/m┬╖K |
When selecting vermiculite, consider the intended application to ensure the right expansion ratio and density are chosen. For construction and insulation purposes, specifications such as thermal conductivity and moisture content are crucial. Buyers should also inquire about the source of the vermiculite to ensure it meets any necessary safety and environmental standards. Specify quantities and any required certifications when requesting a quote.
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Vermiculite is used for insulation, fireproofing, and as a soil amendment.
Yes, but ensure it is sourced from suppliers that provide asbestos-free material.
Vermiculite is mined, heated, and expanded for various applications.
Yes, it can be reused in certain applications, especially in horticulture.
It is a natural mineral that enhances soil structure and retains moisture.
Store in a dry, cool place to prevent moisture absorption.