Name: Hydrophobic Fumed Silica LC-HFS504
Brand: LANCHEMIE INDUSTRY CO., LIMITED.
Availability: InStock

Hydrophobic Fumed Silica LC-HFS504

LC-HFS504 is a hydrophobic fumed silica with a specific surface area of 150, which has been treated with HMDS (hexamethyldisilazane). It is widely used in hot vulcanization (HTV), room temperature vulcanization (RTV), liquid silicone rubber (LSR) coatings, inks, adhesives, sealants, and powder coatings.

Features & Benefits of Hydrophobic Fumed Silica LC-HFS504

Improve the uniformity and stability of pigments, enhance the free flow of powder coatings, and prevent clumping
Excellent hydrophobicity and stable thixotropy
Prevent the structuring of heat cured (HTV) silicone rubber and extend the shelf life of room temperature cured (RTV) silicone rubber
Prevent sedimentation, sagging, and thixotropy in coatings and inks
Good reinforcing and rheological control agents in adhesives and sealants

Applications of Hydrophobic Fumed Silica LC-HFS504

Hot vulcanization (HTV)
Room temperature vulcanization (RTV)
Liquid Silicone Rubber (LSR)
Coatings and inks
Adhesives and sealants
Toner
powder coating

Specification of Hydrophobic Fumed Silica LC-HFS504

Technical Index

Property	Value
Specific surface area（BET）m2/g	150
pH value	5.5-7.5
Loss on drying，105℃，2h，wt%	≤0.5
Burning loss,%	≤4.0
Tap density，g/l	40-60
45um sieve residue fraction mg/kg	≤120
Carbon content,wt,%	1.0-1.7
Silica content,%	≥99.8