HIFULL® HL-90 (BET=100㎡/g)

HIFULL® HL-90 (BET=100㎡/g)

HL-90 Hydrophilic Fumed Silica

HL-90 is hydrophilic fumed silica synthesized from the hydrolysis of high-purity chlorine in a flame of oxygen and hydrogen at the temperature over 1000℃. Its specific surface area is around 100m2/g.


  • Excellent dispersion in the liquid system
  • High filler for organosilicon and adhesives
  • Glossiness adjust for paints and coating films
  • Polishing and grinding additives for base materials like metals or glass
  • Flow aid or anti-caking agent for powder products


PropertiesUnitStandard ValueTesting Method
Specific surface area(BET)m2/g100±20GB/T 20020
pH in 4% dispersion —3.9~4.5GB/T 20020
Loss on drying(2 hours at 105℃)%≤1.0GB/T 20020
Loss on ignition(2 hours at 1000℃, based on material dried for 2 hours at 105℃)%≤1.5GB/T 20020
Sieve residue(45μm)mg/kg≤250GB/T 20020
Silica content( Based on ignited material)%≥99.8GB/T 20020
Tamped density(Based on material dried for 2 hours at 105℃)g/L45~60GB/T 20020


Hydrophilic Fumed Silica Properties

  • Reinforcing filler in elastomers
  • Rheology control and thixotropic agent
  • Anti-settling,anti-sagging, and thickening agent
  • Free flow aid and anti-caking aid for powders

Package & Shipping Details

Quantity(Kilograms)1 – 500>500
Est. Time(days)10To be negotiated

Full Container Loading

Hydrophilic Fumed Silica

20FT: 1.8 Tons (180kg/pallet, total 10 pallets)  

40HQ: 4.2 Tons (200kg/pallet, total 10 pallets + 20 loose bags)

Full Container Loading

Hydrophobic Fumed Silica HB-139& HB-151

20FT: 2.2 tons (220kg/pallet, Total 10 pallets)

40HQ: 4.8 tons (240kg/pallet, Total 20 pallets)


Multiple-layer kraft paper bag, 10 kg/Bag

Delivery date

Generally 7 to 10 days to the Chinese port upon receiving down payment. In case of delay due to change of manufacturing schedule, shipment schedule and/or any other reasons, please check with salesperson prior to shipment.


Guangzhou port, Shanghai port or any other available ports in China upon agreement.


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 ISO18473-1:2015ISO18473-3:2018, 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.

  • Manufacturer: Leading fumed silica manufacturer in China with 20+ years of expertise, 12,000 tons annual capacity 
  • Registration & Certificate: REACH, K-REACH, KKDIK, ISO9001, HALAL, KOSHER
  • Manufacturer Direct Supply: 23 grades of hydrophilic; hydrophobic fumed silica supplied, good quality, competitive price
  • International Standard: Leading setting body of ISO18473-3-2018 Fumed silica for silicone rubber application; Member of the setting body of ISO18473-1-2015 Nanoscale calcium carbonate for sealant application
  • Technology Expertise: 50+ technology patents experienced R&D team from top universities of China Project 211 & Project 985 

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.

ApplicationsFunctionsRecommended Dosage
Paints & Coatingsrheology & thixotropic control,anti-sagging,anti-settling0.5-2%
UPR, Gel Coatrheology & thixotropic control,,anti-sagging,anti-settling0.5-2%
HTV Silicone Rubberreinforcement15-30%
RTV Silicone Rubberthickening & reinforcing10-20%
Adhesivesrheology & thixotropic control, anti-sagging,anti-settling2-10%
Cable Gelthickening5-10%
Gel Batterythickening0.5-6%
Industrial Powdersanti-caking0.5-1%

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.

Contact Support

Hello, Customers

My name is Van, I’m the business manager of HIFULL, I have been in Fumed Silica Industry for more than 10 years. Feel free to contact me. I’m happy to provide you the best service and products.
Business Manager