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Safety Datasheet (SDS)
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Technical DataSheet (TDS)
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HIFULL®HB-630 Fumed Silica (BET=400㎡/g)

HB-630 is Hydrophobic Fumed Silica produced by hydrophilic fumed silica with a specific surface area of 400m2/g after chemical post-treatment with HMDS (Hexamethyldisilazane).

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)

$10.46

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HB-630 Characteristics

  • Specific Surface Area (BET): 270±30 m²/g
  • Carbon Content (based on material dried for 2 hours at 105℃): 2.5~4.0%
  • pH (4% suspension, water:ethanol 1:1): 6.0~9.0
  • Loss on Drying (2 hours at 105℃): ≤0.7%
  • Loss on Ignition (2 hours at 1000℃, based on material dried for 2 hours at 105℃): ≤5.0%
  • Tamped Density (based on material dried at 105℃ for 2 hours): 40~60 g/L
  • Silica Content (based on ignited material): ≥99.8%

HB-630 Application & Function

Elastomers, especially HTV and LSR silicone rubbers

Reinforcing agents that prevent structuring

Coatings and inks

Improved thickening thixotropy and anti-settling properties

Defoamer

Dispersion, adsorption, thickening, anti-settling effect

Printer toner

Improve flow, enhance printing efficiency, increase storage stability

Description

Self-owned BrandHIFULL
Free SampleYes
Sample Freight PayerBuyer
Fast DeliveryExpress samples within 7 days
MOQ10KG/BAG
Appearance (Fumed Silica)Nanoscale white fluffy inorganic synthetic powder (not silica fume/microsilica powder)
Drop Shipping SupportYes (with HIFULL logo)
Patents54 patents (no infringement risk)

HIFULL Strength

  • Professional Manufacturer With 20 Years Expertise 
  • Annual Capacity: 12,000+ Tons
  • Certificate: Reach, Iso, Halal, Kosher
  • Main Product: Fumed Silica / Colloidal Silicon Dioxide(Sio2) / Fumed Titanium Oxide (Tio2 ) / Fumed Aluminium Doxide ( Al203）

Properties

  • High reinforcement and transparency in HTV and LSR
  • High hydrophobicity and stable thixotropy
  • Anti-settling and anti-sagging agents in coatings and printing ink
  • With a large specific surface area, small particle size & good dispersion performance, it enables good defoaming performance
  • Free flow aid and anti-caking aid for powders

Further Information

How to Use Fumed (Colloidal) Silica

Fumed Silica requires significant agitation (stirring) to become fully mixed into a resin. Use of a mechanical stirrer will make the process quicker and easier but manual mixing is perfectly possible. For maximum effect, allow the Fumed Silica to soak in the resin for as much as a day before thorough mixing. Fumed Silica added to resin at a ratio of 0.7% – 1% (by weight) will produce a thixotropic resin. 2-3% will produce a gelcoat consistency. Percentages up to 3%+ can be used to make a filler paste (additional filler powders may be required). Please note the addition of Fumed Silica will reduce the clarity of clear resin systems meaning it is not ideal for turning clear laminating resin into a clear gelcoat.

Safety

Fumed Silica particles are incredibly small and light and will become airborne as soon as the material is scooped, moved or mixed. Always wear protective gloves and a dust mask when handling this product in its raw state.

FAQ

We are China professional manufactory of fumed silica Si02, fumed titanium dioxide Ti02 and fumed alumina Al203

Please tell us the grades and details you prefer, company name and company country are needed,then we will arrange the samples foryou. Free sample provided within 500g, the shipping cost should be paid by the buyer.

Our MOQ is 10KG per grade per bag.

Fumed silica is mainly applied in the field of silicone rubber, printing ink, coating, thermalinsula tin material, gel batteries, adhesivesresins, food, ceramics, fertilizer, pharmaceuticals, electronic packaging materials, optical fiber, papermaking, green tire, mechanicalpolishing, etc.

You can tell us your application, our sales team will give you a professional advice.B. You can provide the brand& grade you need, we will provide you the equivalent grade of HlFULL fumed silica

Pay the full amount before shipment.

After receiving full payment and all the mass production information, it takes 30-40working days, lt depends on the quantity and orderdetails.

Product Package Details

The product is supplied in multiple-layer 10 kg bags or polypropylene-made packages in 200kg bags. We recommend storing the product in dry and cool conditions and protecting the material from volatile substances. It should be used within 2 years after production.

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    Silica Content

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    Key Effects

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