Buy good quality high temperature Exfoliated vermiculite at low price 58 INR / Kg at Wedge India. Exfoliated vermiculite is a form of the mineral vermiculite that has been processed through heating. When vermiculite is heated to high temperatures (around 800–1500°C), it expands or "exfoliates" due to the rapid evaporation of water within its structure. This expansion process results in a lightweight, porous material with excellent thermal and acoustic insulation properties, as well as fire resistance.
Properties of Exfoliated Vermiculite
Thermal Insulation:
Low thermal conductivity, making it an excellent insulator against heat.
Fire Resistance:
Non-combustible and can withstand temperatures up to 1100°C without breaking down.
Lightweight:
The exfoliation process creates a material that is significantly lighter than its original form.
High Absorbency:
Highly absorbent, making it useful for various agricultural and industrial applications.
Chemical Inertness:
Chemically stable and resistant to most chemicals, including acids and bases.
Acoustic Insulation:
Good sound-absorbing properties, useful in noise reduction applications.
Applications of Exfoliated Vermiculite
Construction:
Loose-Fill Insulation: Used in walls and attics for thermal and acoustic insulation.
Fireproofing: Applied in sprayable fireproofing materials for steel structures, fire doors, and safes.
Lightweight Concrete: Mixed with cement to create lightweight, insulating concrete.
Agriculture:
Soil Amendment: Improves soil aeration, moisture retention, and nutrient exchange.
Hydroponics: Used as a growing medium in hydroponic systems due to its ability to retain water and nutrients.
Horticulture:
Seed Germination: Provides a sterile and nutrient-rich environment for seeds to germinate.
Potting Mixes: Enhances drainage and moisture retention in potting soils.
Industrial:
High-Temperature Insulation: Used in furnaces, kilns, and other high-temperature applications.
Packaging Material: Acts as a cushioning and protective material for sensitive items.
Automotive:
Brake Linings: Historically used in brake linings for its heat-resistant properties (though usage has declined due to health concerns with asbestos).
Consumer Goods:
Absorbents: Used to clean up spills of hazardous liquids due to its high absorbency.
Technical Specifications of Exfoliated Vermiculite
Thermal Conductivity: Approximately 0.048 W/m·K at 20°C
Maximum Service Temperature: Up to 1100°C
Density: Varies based on grade, typically around 64 to 160 kg/m³
Fire Resistance: Non-combustible, meets various fire safety standards
pH: Neutral to slightly alkaline, around 7.0 to 9.5
Water Retention: Can retain water up to 3-4 times its weight
 
Exfoliated vermiculite is a versatile material with numerous applications across various industries due to its lightweight, insulating, and fire-resistant properties. Whether used in construction for thermal insulation, in agriculture to improve soil properties, or in industrial settings for high-temperature insulation, exfoliated vermiculite offers significant benefits