N Series

Code: N Series

Zeeospheres Ceramic Microspheres N Series are unique dark gray-colored, fine particle size, high-strength microspheres. They are opaque to visible light, but transparent to UV light. These products are typically used to reduce VOC levels, increase filler loadings, improve hardness, and add burnish, scrub and abrasion resistance to a variety of coating formulations. Due to their low resin demand, high hardness and inert chemistry, these products have found utility in high solids, water reducible radiation – curbale and high durability coatings, powder coatings, and a wide range of premium performance coatings. The N Series is typically used when color is not important in the application.

Typical Physical Properties ( Not for specification purposes)

PRODUCT

Zeeospheres Ceramic Microspheres, “N” Grades
Grayness (“L” Value) 20 minimum
Crush Strength > 4,200 kg/cm2(>60,000 psi)
pH 3.0 – 9.0 ASTM E 70
Hardness 7 Mohs Scale
Softening Point 1,020 * C ( 1,870* F)
Dielectric Constant 3.7 – 4.6
Thermal Conductivity 2W/mK

 

Properties Grade        
    N -200 N-200PC N-400 N – 600 N – 800 N-1000 N-1200
True Density 2.5 2.5 2.4 2.3 2.2 2.1-2.7 2.3-2.6
Particle Size 100th% 325 325
(Microns) 95th% 14 12 23 35 150 150 150
90th% 12 10 18 25 105 42 – 50 20 – 35
50th% 5 4 8 10 30 42 – 50 20 – 35
Surface Area ( m2/cc) 6 6 5 4 3
Oil Absorption * 26 26 26 23 18
*gm of oil per 100 gm of microspheres

MATERIAL DESCRIPTION
Shape: Hollow spheres with thick walls
Composition: Silica – Alumina Ceramic

FORMULATING INFORMATION
Zeeospheres Ceramic Microsphers are best dispersed by using sand, ball and roller mills. For optimal dispersion, the Zeeospheres should be added to the grind stage, along with pigments and other filler materials. Use of a dispersant can aid in the wet-out and dispersion.

 

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