THE BEST Hydrophilic Fumed Silica MANUFACTURER in China
Hubei Huifu Nanomaterial Co., Ltd. is a chemical manufacturer of nanomaterials in China, Our main products are fumed silica, fumed titanium dioxide, and fumed alumina Al2O3. We get 20+ years of expertise and 12,000 tons annual capacity.
HIFULL Hydrophilic Fumed Silica
Hydrophilic fumed silica is a silica-based polymer with a tendency of absorbing moisture. It is used in high-technology fields or as an ingredient in paints, coatings, electronics, and optical fibers industries.
There are various grades of hydrophilic fumed silica, which are defined by their amorphous structure. It is used to provide thixotropic properties in coatings and adhesives. It also assists in enhancing flow in the production industry, such as cosmetics and pharmaceuticals.
HYDROPHILIC FUMED SILICA
For the total 6 grades of HIFULL hydrophilic fumed silica, the main difference lays in the specific surface area, which affects its functions, such as thickening performance, thixotropic properties.
SPECIFICATION
*Registrations: HIFULL fumed silica products get registrations of REACH & Pre-registration of K-REACH &KKDIK
| Grade | HL-90 | HL-150 | HL-200 | HL-260 | HL-300 | HL-380 | HL-450 |
|---|---|---|---|---|---|---|---|
| Specific SurfaceArea (nitrogen adsorption method) (m²/g) | 100±20 | 150±15 | 200±20 | 260±20 | 300±25 | 380±30 | 450±30 |
| pH value in dispersion | 3.9～4.5 | 3.9～4.5 | 3.9～4.5 | 3.7～4.5 | 3.7～4.5 | 3.7～4.5 | 3.7～4.5 |
| Loss at 105℃ (%) | ≤1.0 | ≤1.5 | ≤2.0 | ≤2.0 | ≤2.0 | ≤2.5 | ≤2.5 |
| Loss on ignition (%) | ≤1.5 | ≤2.0 | ≤2.0 | ≤2.0 | ≤2.5 | ≤2.5 | ≤2.5 |
| Sieve residue (45μm) (mg/kg) | ≤250 | ≤250 | ≤250 | ≤250 | ≤250 | ≤250 | ≤250 |
| Silica content (%) | ≥99.8 | ≥99.8 | ≥99.8 | ≥99.8 | ≥99.8 | ≥99.8 | ≥99.8 |
| Tamped density (g/L) | 45～60 | 40～60 | 40～60 | 40～60 | 40～60 | 40～60 | 40～60 |
| Product application | Surface treatment for base materials, Polish&Grind, Coatings, Printing inks, Personal Care Products, Food | Silicone rubber, rubber, offset printing, medicines, cosmetics, creams, thermal insulation materials | Silicone rubber, adhesives, inks, coatings, pharmaceuticals, defoamers, thixotropic resins, gel coat resins | HTV&LSR Silicone Rubbers, Adhesives, Coatings & PrintingInks, UPR resins, Thermal Materials | Silicone rubber, rubber, coatings, paint | Silicone rubber, defoamer, ink, adhesive, pesticide | High transparent LSR, Adhesives, Coatings &Printing Inks, Deformers, Carrier |
Performance benefit
Fumed silica, or pyrogenic silicon dioxide, is one kind of pure amorphous white inorganic powder that has a high specific surface area, nano-scale primary particle size, and a relatively high (among silica products) concentration of surface silanol groups. The properties of fumed silica can be chemically modified by reaction with these silanol groups.
Commercial available fumed silica can be divided into two groups: hydrophilic fumed silica and hydrophobic fumed silica. Because of the above-mentioned features, it is widely used as an important ingredient in many industries such as silicone rubber, paint, and plastics industries.
ABOUT HIFULL
Our main products are fumed silica SiO2, fumed titanium dioxide TiO2, and fumed alumina Al2O3. We get 20+ years of expertise and 20,000 tons of annual capacity. We supply total of 23 grades of hydrophilic & hydrophobic fumed silica. We get registration of REACH and pre-registration of K-REACH & KKDIK. We are the leading setting body of ISO18473-1:2015, ISO18473-3:2018, and ISO 23157:2021. Learn More About Hifull
Frequently Asked Question
A Manufacturer. Hubei Huifu has been researching and manufacturing fumed silica for 20+ years. We are the largest manufacturer of fumed silica with a well-developed and stable manufacturing process in China.
We get registration of REACH and pre-registration of K-REACH & KKDIK. We get certificates of ISO 9001, ISO 14001. We are the leading setting body of ISO18473-1:2015, ISO18473-3:2018 and ISO 23157:2021.
Free Sample: All grades of fumed silica sample available, Contact to Us
Pyrohydrolysi & Trichloromethylsilane
Fumed silica is synthesized by the pyrohydrolysis of silicon tetrachloride or trichloromethylsilane in the flame of hydrogen and oxygen. Our main raw material is silicon tetrachloride, and the secondary is trichloromethylsilane.
Hydrophilic Fumed Silica SiO2:
HL-150 / HL-200 / HL-300 / HL-380 / HL-150W / HL-200W
Hydrophobic Fumed Silica SiO2:
DDS Treated — HB-151/ HB-152 ;
PDMS Treated — HB-139 ;
HMDS Treated — HB-132 / HB-135 / HB-612/ HB-615 / HB-620 / HB-630.
Fumed Titanium Dioxide TiO2: NT-50
Fumed Aluminium Oxide Al2O3: Aluna-80 & Aluna-100
Price is based on the actual grade.
When the price of raw material fluctuates, we may adjust the price accordingly, please enquire before placing orders. Our email: hifull@hifull.com. Cell : + 8618571019514
When fumed silica is used as filler or additives, it helps in thickening, reinforcement, transparency, free-flow, thixotropic performance, dielectric properties, anti-settling, heat insulation, and anti-sagging. For example, for powder products, HIFULL fumed silica is used as an anti-caking agent; for liquid products, HIFULL fumed silica is used as an anti-settling agent or suspending agent.
| Applications | Functions | Recommended Dosage |
| Paints & Coatings | rheology & thixotropic control,anti-sagging,anti-settling | 0.5-2% |
| UPR, Gel Coat | rheology & thixotropic control,,anti-sagging,anti-settling | 0.5-2% |
| HTV Silicone Rubber | reinforcement | 15-30% |
| RTV Silicone Rubber | thickening & reinforcing | 10-20% |
| Adhesives | rheology & thixotropic control, anti-sagging,anti-settling | 2-10% |
| Cable Gel | thickening | 5-10% |
| Gel Battery | thickening | 0.5-6% |
| Industrial Powders | anti-caking | 0.5-1% |
Quality Stabilization: we are the earliest fumed silica manufacturers with independent R&D in China, which guarantees our product stabilization.
Largest Manufacturer: Our annual output of fumed silica is about 12,000 tons.
Strong R&D Team: Besides our own R&D institute and application& technology department, we’ve to build a research center with Sichuan University and Wuhan University, both are top-tier universities in China.
Leading Authority: We have already been the influential enterprise in the silicon industry in China. Doctor Wang Yuelin, the actual controller of Hifull, is the leader of the Sino-Germany project ISO18473-3 << Fumed Silica for Silicon Rubber>> and he is granted the Outstanding Contribution Award by the committee.
Mainly T/T, L/C and D/P, actual payment terms please check with sales when placing orders.
We will arrange delivery immediately according to the manufacturing schedule and conditions. Due to shipping schedule or other factors, please check with sales when placing orders.
Still have questions?
If you cannot find an answer to your question in our FAQ, you can always contact us and we will be with you shortly.