Hjsil® 380

1 of 5 products in this brand
Hjsil® 380 is a high-purity hydrophilic fumed silica with a specific surface area of 380 m²/g. This white colloidal powder is designed for a variety of applications, particularly in the plastics, elastomers, and coating industries. It offers excellent transparency, rheology control, and flow properties, making it ideal for formulations requiring precise viscosity management and stability. Hjsil® 380 is highly effective in RTV silicones, Liquid Silicone Rubber (LSR), and unsaturated polyesters (UPE), as well as in gelcoats.The product enhances the performance of formulations by providing anti-settling, anti-sagging, and anti-caking benefits. It also acts as a reinforcing filler and a thickener, improving the overall physical properties of the final product. Available in bags, this silica is used in a wide range of applications, including cable accessories, coatings, and elastomer products, where superior rheological properties, anti-sagging, and anti-settling features are crucial.

INCI Name: Silica

Compatible Polymers & Resins: Liquid Silicone Rubber (LSR), RTV Silicone, Unsaturated Polyester (UPE)

Synonyms: Fumed Silica, Silica, Silicon Dioxide

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

Chemical Name
Pyrogenic Silica
INCI Name
Silica
Manufactured By
Henan Minmetals
CASE Ingredients Functions
Anti-Caking Agent,
Anti-Sagging Agent,
Anti-Settling Agent,
Thickener
Cosmetic Ingredients Functions
Anti-Caking Agent,
Thickener
Plastics & Elastomers Functions
Anti-Caking Agent,
Anti-Sagging Agent,
Anti-Settling Agent,
Reinforcing Filler,
Thickener
Technologies
CASE,
Cosmetic Ingredients,
Elastomers
Product Families
CASE — Additives
Functional Additives,
Rheology Modifiers & Stabilizers,
Surface Modifiers
Elastomers — Elastomer Additives
Fillers & Extenders,
Rheology Modifiers
Cosmetic Ingredients — Functionals
Rheology Modifiers,
Texturizers & Fillers

Features & Benefits

Benefit Claims
Anti-Caking,
Anti-Sagging,
Anti-Settling
CASE Ingredients Features
Excellent Flow,
Improved Rheology
Materials Features
Excellent Transparency Properties,
Good Rheology Properties
Key Properties

Hjsil® 380 is supplied in 10kg kraft paper bags. We recommend to store the product in closed containers under dry conditions and to protect the material from volatile substances.

Key Properties
  • Used as anti-settling, thickening, anti-sagging agent
  • Improvement of free flow and anti-caking characteristics of powders
  • Rheology and thixotropy control of liquid systems, binders, polymers, etc.
  • Reinforcement filler in elastomers
  • Excellent transparency in unsaturated polyester resins

Applications & Uses

Compatible Polymers & Resins
Liquid Silicone Rubber (LSR),
RTV Silicone,
Unsaturated Polyester (UPE)
Coating End Applications
Gelcoat
Plastics & Elastomers End Uses
Cable Accessories

Properties

Physical Form
Powder
Physico-Chemical Properties
ValueUnitsTest Method / Conditions
Fineness Residue (on a 45 µm sieve)max. 0.05%GB/T5211.14
Carbon Content (based on material dried for 2 hours at 105°C)max. 0.2wt%GB/T20020
Tamped Density (based on material dried for 2 hours at 105°C)40 - 60g/lGB/T5211.4
Silica Content (based on ignited material)min. 99.8wt%GB/T20020
Loss on Ignition (2 hours at 1000°C, based on material dried for 2 hours at 105°C)max. 2.5wt%GB/T20020
Loss on Drying (2 hrs at 105°C)max. 1.5wt%GB/T5211.3
Specific Surface Area350 - 410m²/gGB/T10722
Specifications
ValueUnitsTest Method / Conditions
pH Value (in 4% dispersion)3.6 - 4.5-GB/T1717

Packaging & Availability

Packaging Type
Bags