Silica sol possesses the following core performance parameters and characteristics:
Particle size range: Adjustable from 8-160nm; some manufacturers have achieved stable mass production of particles below 10nm.
Silica content: 20%-40%
Viscosity: Typically <10mPa·s (approximately 5-25mPa·s at 25℃)
pH range: 6.0-8.5 (neutral), 8.5-10.0 (ammonium form)
Special properties:
Large specific surface area and high adsorption capacity
Excellent heat resistance (up to 1500~1600℃)
Forms a -Si-O-Si- network structure coating after drying, exhibiting excellent water resistance and heat resistance
Good dispersibility and permeability
Chemically stable and non-flammable