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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.
Hydrophobic fumed silica is a form of silicon dioxide (commonly known as silica) that has hydrophobic groups chemically bonded to the surface. It’s treated silica or structure-modified silica. HIFULL hydrophobic fumed silica is structure-modified silica after being treated by HMDS(Hexamethyldisilazane), PDMS(Polydimethylsiloxane) and DDS(Dimethyldichlorosilane).
Price (10 kg)
| BET Surface Area | 130±30 m²/g |
|---|---|
| Silica Content | ≥99.8% |
| Key Effects | Anti-caking aid, Anti-sagging, Free flow aid, Reinforcing filler, Rheology control, Thickening agent, Thixotropic agent |
| Typical Applications | Adhesives & Sealants, Ink, Painting Coating, Silicone Rubber |
Price (10 kg)
| BET Surface Area | 150±25 m²/g |
|---|---|
| Silica Content | ≥99.8% |
| Key Effects | Anti-caking aid, Anti-sagging, Free flow aid, Reinforcing filler, Rheology control, Thickening agent, Thixotropic agent |
| Typical Applications | Adhesives & Sealants, Painting Coating, Silicone Rubber |
Price (10 kg)
| BET Surface Area | 170±20 m²/g |
|---|---|
| Silica Content | ≥99.8% |
| Key Effects | Anti-caking aid, Anti-sagging, Free flow aid, Reinforcing filler, Rheology control, Thickening agent, Thixotropic agent |
| Typical Applications | Grinding of Copper Products, Ink, Painting Coating |
Price (10 kg)
| BET Surface Area | 140±20 m²/g |
|---|---|
| Silica Content | ≥99.8% |
| Key Effects | Anti-caking aid, Anti-sagging, Anti-settling, Free flow aid, High transparency, Reinforcing filler, Rheology control, Thixotropic agent |
| Typical Applications | Adhesives & Sealants, Ink, Painting Coating, Silicone Rubber |
Price (10 kg)
| BET Surface Area | 140±20 m²/g |
|---|---|
| Silica Content | ≥99.8% |
| Key Effects | Anti-caking aid, Anti-sagging, Anti-settling, Free flow aid, Reinforcing filler, Rheology control, Thixotropic agent |
| Typical Applications | Adhesives & Sealants, Ink, Painting Coating, Silicone Rubber |
Price (10 kg)
| BET Surface Area | 170±30 m²/g |
|---|---|
| Silica Content | ≥99.8% |
| Key Effects | Anti-caking aid, Anti-sagging, Anti-settling, Free flow aid, Reinforcing filler, Rheology control, Thixotropic agent |
| Typical Applications | Adhesives & Sealants, Ink, Painting Coating, Silicone Rubber |
Price (10 kg)
| BET Surface Area | 280±30 m²/g |
|---|---|
| Silica Content | ≥99.8% |
| Key Effects | Anti-caking aid, Anti-sagging, Anti-settling, Free flow aid, Reinforcing filler, Rheology control, Thixotropic agent |
| Typical Applications | Ink, Painting Coating, Silicone Rubber |
Price (10 kg)
| BET Surface Area | 110±30 m²/g |
|---|---|
| Silica Content | ≥99.8% |
| Key Effects | Anti-sagging, Stability, Thickening agent, Thixotropic agent |
| Typical Applications | cable gels, Ink, lubricating oil, Painting Coating, Silicone Rubber, Vinyl ester resins |
Price (10 kg)
| BET Surface Area | 170±30 m²/g |
|---|---|
| Silica Content | ≥99.8% |
| Key Effects | Anti-caking aid, Anti-sagging, Free flow aid, Reinforcing filler, Rheology control, Thickening agent, Thixotropic agent |
| Typical Applications | Adhesives & Sealants, Ink, Painting Coating, Silicone Rubber |
Price (10 kg)
| BET Surface Area | 140±20 m²/g |
|---|---|
| Silica Content | ≥99.8% |
| Key Effects | High transparency |
| Typical Applications | Adhesives & Sealants, Silicone Rubber |
|
Grade |
Treating Agent |
Specific Surface Area(m²/g) |
pH value in dispersion |
Loss on drying(2 hour at 105℃) |
Loss on ignition (%) |
Silica content (%) |
Carbon content(%) |
Tamped density (g/L) |
Product application |
Document |
|---|---|---|---|---|---|---|---|---|---|---|
|
HB-132 |
HMDS |
140±20 |
6.0～9.0 |
≤0.7 |
≤4.0 |
≥99.8 |
2.0～4.0 |
40～60 |
Silicone rubber, defoamer, adhesive, sealant | |
|
HB-139 |
PDMS |
110±30 |
4.0～7.0 |
≤0.7 |
≤10.0 |
≥99.8 |
4.0～7.0 |
40～60 |
Powder coatings, adhesives, coatings, sealants | |
|
HB-151 |
DDS |
120±30 |
≥3.7 |
≤0.7 |
≤2.5 |
≥99.8 |
0.6～1.2 |
40～60 |
Coatings, inks, adhesives, MS adhesives | |
|
HB-152 |
DDS |
170±30 |
≥3.7 |
≤0.7 |
≤2.5 |
≥99.8 |
0.8～1.6 |
40～60 |
Coatings, inks, adhesives, MS adhesives | |
|
HB-612 |
HMDS |
140±20 |
5.0～8.0 |
≤0.7 |
≤2.0 |
≥99.8 |
0.7～1.3 |
40～60 |
Roomtemperaturevulcanization (RTV)silicone rubber, ceramics, pesticides, defoamers | |
|
HB-615 |
HMDS |
140±20 |
5.0～8.0 |
≤0.7 |
≤4.0 |
≥99.8 |
1.0～1.7 |
40～60 |
Ink, electronic potting adhesive, defoamer, silicone rubber | |
|
HB-620 |
HMDS |
170±30 |
6.0～9.0 |
≤0.7 |
≤4.0 |
≥99.8 |
1.5～2.5 |
40～60 |
Silicone rubber, powder coating, defoamer, paint | |
|
HB-630 |
HMDS |
300±30 |
6.0～9.0 |
≤0.7 |
≤5.0 |
≥99.8 |
2.5～4.0 |
40～60 |
Silicone rubber, powder coating, defoamer, paint | |
|
HB-202N |
Special Silane Treated |
170±20 |
8.0～10.0 |
≤2.0 |
≤8.0 |
≥99.8 |
1.0～2.0 |
40～60 |
Coatings, anticorrosive coating products, grinding of copper products, water-based inks and water-based coatings | |
|
HB-701 |
Special Silane Treated |
150±25 |
4.0～6.0 |
≤1.5 |
≥4.5 |
≥99.8 |
4.5～6.5 |
40～60 |
Paint and coating systems, plastics and elastomers, dental composites |
| Application Category | Sub-Application/Type | Main Functions | Recommended Grade | Suggested Usage (%) |
|---|---|---|---|---|
| Silicone Rubber | HTV Silicone Rubber | Reinforcing, Transparent | HL-200, HL-300, HL-380, HB-132 | 0.5-3 |
| Silicone Rubber Insulator | Reinforcing, Insulation | HL-150, HL-200, HB-139 | 0.5-3 | |
| RTV Silicone Rubber | Rheology Control | HL-150, HL-200, HB Series | 0.5-3 | |
| Powder Coating | Corona Discharge | Free Flowing, Anti-Caking, Dispersion, Charge Control | HB-630, HB-151, HL-200, HL-300, HL-380 | 0.5-3 |
| Varnish | PU, Acrylic Acid, Epoxy-Polyester, Amino | — | HB-630, HB-151, HL-200, HL-300 | 0.5-3 |
| Liquid Coating | Industrial Paint & Marine Paint | Anti-Sagging, Anti-Settling, Thickening, Thixotropy, Leveling | HB-139, HB-151, HB-630 | 0.5-3 |
| Acrylic Acid, Polyester, Nitro | Anti-Sagging, Anti-Settling, Thickening, Thixotropy | HL-200, HL-300 | 0.5-3 | |
| Epoxy, Vinyl Polyester, PU | Anti-Sagging, Anti-Settling, Thickening, Thixotropy | HB-151, HB-139 | 0.5-3 | |
| Sealant | PU | Thixotropy, Anti-Sagging, Water Content Control | HB-139, HB-151, HL-200 | 3-7 |
| Adhesive | Epoxy | Reinforcing, Thixotropy, Anti-Sagging, Thickening | HB-139, HB-151, HL-200, HL-300 | 1.5-3 |
| Composite Material | — | Thixotropy, Anti-Settling, Anti-Sagging, Thickening | HL-200, HL-300, HB-151, HB-139 | 0.5-3 |
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.
Synonyms: Pyrogenic silica, Fumed Silica Dispersion, Silicon Dioxide, Fumed SiO2
Chemical Formula: SiO2
CAS Number: 112945-52-5
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.
Whether you need a data sheet, pricing, regulatory documents, or just some product info, we’re here to help in any way possible. If filling out one of our handy forms isn’t for you, Complete our quote request form or email us at hfdzsw@hifull.com to receive a customized quote from our product specialists.
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.
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.
HL-150 / HL-200 / HL-300 / HL-380 / HL-150W / HL-200W
DDS Treated — HB-151/ HB-152 ;
PDMS Treated — HB-139 ;
HMDS Treated — HB-132 / HB-135 / HB-612/ HB-615 / HB-620 / HB-630.
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: hfdzsw@hifull.com. Cell : +86 15671056880
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.
Complete our quote request form or email us at hfdzsw@hifull.com to receive a customized quote from our product specialists.
