1. Is your company a manufacturer or a trade company?
A Manufacturer. Hubei Huifu has been researching and manufacturing fumed silica for 20+ years. We are the largest manufacturer of fumed silica with well-developed and stable manufacturing process in China.
2. What’s the main raw material of your fumed silica product?
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 secondary is trichloromethylsilane.
3. What’s your main product?
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
4. What’s the related effects of fumed silica?
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 used as anti-caking agent; for liquid products, HIFULL fumed silica used as 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% |
5. Compared with other manufacturers, What’s the advantages you have?
Quality Stabilization : we are the earliest fumed silica manufactures with independent R&D in China, which guarantees our product stabilization.
We get registration of REACH and pre-registration of K-REACH & KKDIK. We get certificate of ISO 9001, ISO 14001.
Largest Manufacturer : Our annual output of fumed silica are about 12,000 tons
Strong R&D Team: Besides from our own R&D institute and application& technology department, we’ve build research center with Sichuang University and Wuhan University, both are top-tier university in China.
Leading Authority： We have already been the influential enterprise in silicon industry in China. Doctor Wang Yuelin, 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.
6. What’s the price of your product?
Price is based on the actual grade.
When price of raw material fluctuates, we may adjust the price accordingly, please enquire before placing orders. Our email: hifull@hifull.com. Cell : + 8618571019514
7. What’s the payment terms?
Mainly T/T, L/C and D/P, actual payment terms please check with sales when placing orders.
8. How long it takes to arrange delivery after placing order?
We will arrange delivery immediately according to manufacturing schedule and condition. Due to shipping schedule or other factors, please check with sales when placing orders.
