SUNSPHERES™ 200 Nm

1 of 7 products in this brand

Sunspheres™ 200 Nm are optically clear, solid fused amorphous microspheres designed for use in a wide variety of coatings, inks, adhesives, powder coatings, and thermoplastics, including UV curable compositions. These sub-micron sized spheres can be used to improve physical and mechanical properties including reduced shrinkage, improved adhesion, impact resistance, and enhanced surface qualities such as hardness, mar and scratch resistance. The average particle size is 200 nanometers and range in size from about 50 nm to 500 nm.

Functions: Filler, Reinforcement

Chemical Family: Calcium Salts, Silica

End Uses: Aerospace Applications, Enamel, Lighting Applications, Marine Applications, Primer, Radiation Curable Coating, Solventless & High Solids Coating, Waterborne Coating

Technical Data Sheet
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Identification & Functionality

Chemical Family
CASE Ingredients Functions
Composite Materials Functions
Plastics & Elastomers Functions
CAS No.
60676-86-0
EC No.
262-373-8
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SUNSPHERES™ 200 Nm - Particle Image

Features & Benefits

Product Highlights
  • The Sunspheres™ 200 Nm efficiently transmit ultraviolet and visible light from 200 nanometers through the visible spectrum. They promote efficient and thorough curing of coatings with ultraviolet radiation.
     
  • These engineered fused, amorphous silica nanospheres are resistant to temperatures greater than 1000 °C. and are chemically stable in a vast range of resins and pH. Dosage is 3 to 50% by total weight of the finished composition.
     
  • The average particle size is 200 nanometers and range in size from about 50 nm to 500 nm. Silane surface treated Sunspheres™ 200 Nm are available upon request. New innovative dispersion technology for this product is available upon request.

Applications & Uses

Applications
Compatible Substrates & Surfaces
Cure Method
Applications
  1. Reduced shrinkage/improved adhesion.
  2. Impact strength.
  3. Anti-corrosion barrier.
  4. Mar, scratch, and abrasion resistance.
  5. Optical effects/color density.
  6. Oenhanced UV curing.

Properties

Physical Form
Appearance
Fine White Powder
Physico-Chemical Properties
ValueUnitsTest Method / Conditions
Refractive Index1.46ND
Hardness (Mohs)max. 8.0
pH Value4.6
X-Ray FormAmorphous
SiO2 Content99.99%
Softening Temperaturemax. 10000 °C
Na2O Content2ppm
Strain Pointmax. 6000 °C
Coefficient of Thermal Expansion0.48 x 10-6/K
K2O Content2ppm
DC Resistivity1 x 10^8
BET Surface Area23.52sq.m/g
Oil Absorption25
Moisture0.07%
Crushing Strengthmax.. 60,000 psi