Zandosil

Pyrogenic Silica for Industrial Applications

Pyrogenic silica of high purity is used in various applications as a raw material or additive to optimize product properties. Heraeus Zandosil® is a high purity silica that is available in different product solutions: Powder, Granulate and Dispersion.

Zandosil® is synthetic, amorphous and a product of our clean-room manufacturing process. This makes it a silica with highest purity.

Standard packaging units are Big Bags of 1m3 and 2 m3 size, drums and IBC-Container. Other packaging options are available upon request.

Heraeus Zandosil® can be used in several applications and provides smart answers to your challenges. Benefit from a wide range of advantages:

  • Extreme high purity
  • High chemical stability
  • Low dust formation and easy handling
  • High thermal insulation
  • Low thickening effect in solvents
  • Good flow properties
Pyrogenic silica powder

Powder

Zandosil® powder products are available with a BET-surface between 30 - 50 m²/g.

Purity ranges from 99.99 % to above 99.999 %.

Products:
Zandosil® 30
Zandosil® 30P
Zandosil® 50

Granulate

Granulate

Zandosil® granulates can be obtained with a D50 between 50 and 250 µm.

All granulates have a purity higher than 99.999 %.

Products:
Zandosil® G220

Dispersion

Dispersion

Zandosil® is available as water based dispersion. The solid content can be tailored depending on your requirements from 20 % to 60 %.

The purity is higher than 99.999 %

Products:
Zandosil® S20
Zandosil® S62

Zandosil® is used in various industries and applications as a raw material or functional additive.
Some applications are:

  • Adhesives and Sealants
  • Building Materials
  • Ceramics
  • Chemical Mechanical Planarization (CMP)
  • Paints and Coatings
  • Personal Care
  • Polishing
  • Thermal Insulation
  • Thermoplastics
  • And many more

Your Zandosil experts will help you to find the best solution for your application.

Powder

Zandosil® 30 Zandosil® 30P Zandosil® 50
Silicon dioxide content
(wt. %)
> 99.99 > 99.999 > 99.99
Bulk density
(g/l)
200 200 100
Particle size D50
(μm)
9 9 9
Primary particle size
(nm)
100 100 50
BET-surface area
(m2/g)
30 30 50
pH of substance dispersed in water (4 %) 4.8 4.8 3.8

Granulate

Zandosil® G220
Silicon dioxide content
(wt. %)
> 99.999
Bulk density
(g/l)
800
Particle size D50
(μm)
200-250
BET-surface area
(m2/g)
30
pH of substance dispersed in water (4%) 4.8

Dispersion

Zandosil® S20 Zandosil® S62
Silicon dioxide content
(wt. %)
> 99.999 > 99.999
Viscosity at 100s-1 / /
Solid content
(wt. %)
20 62
Particle size D50
(μm)
/ /
BET-surface area
(m2/g)
30 30
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