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MQP-SP | Micro Quartz Powder 99.97% - Spherical

Main features
  • ≥99.97% SiO2
  • Spherical form
  • Quartz Powder

Product Description

MQP-SP Spherical Micro Quartz Powder is an identical product with MSP-CR. Their only difference is that this is spherical, instead of crystalline, with a sphericity rating of >90%. It consists of ultra fine spherical silica particles with an SiO2 content of 99.97%It is commonly used as an EMC filler for semiconductors and can be used in Copper claded layers to improve its CTE, thermal resistance and reliability.

MQP-SP has fewer ionic impurities and low alpha ray emissions while also maintaining a very high purity. Its ultra fine nature makes it ideal for PCB printing inks. It helps with resistance to scratching and wiping, it lowers the CTE and brings long term reliability to the circuit board. 

MQP-SP can finally be used in paints and coatings, assisting with the leveling properties, transparency and weather resistance of the materials. The particle size is adjusted to the customer requirements and can range from 7μm to 75μm (D50).


Product Family
1 Ton Bulk bag

Catalog Product

Unlike other products we offer, the products listed on this page cannot currently be ordered directly from the website.

Technical Specifications

Chemical Properties
Silicon Dioxide(SiO2) 99.97 %
Other Properties
Metallic Impurities
Aluminum (Al)
Aluminum (Al)
Aluminium is a metallic element with a silvery-white, soft nonmagnetic, ductile elements that has a melting point of 660.3 C
50 ppm (max)
Chromium (Cr)
Chromium (Cr)
Chemical element with a steely-grey, hard and brittle metal, resists tarnishing and has a high melting point.
0.1 ppm (max)
Iron (Fe)
Iron (Fe)
A chemical element with a melting point of 1,538 C
0.1 ppm (max)
Magnesium (Mg) 1 ppm (max)
Potassium (K) 20 ppm (max)
Sodium (Na) 20 ppm (max)

Additional Information

Particle Size Analysis

Microns % Finer
250 99.5
200 75
180 50
125 20
100 3






Typical Values. They do Not Represent A Specification