These lightweight hollow glass microspheres reduce materials costs and VOC levels while enhancing the physical performance of paints and coatings.
With a density close to that of resin, they are less likely to settle out. They occupy a higher volume than an equal weight of the filler or pigment they replace, thus displacing additional solvents, for lower VOC content.
The addition of SPHERICEL®Microspheres can reduce the use of TiO2 without compromising desired levels of whiteness and hiding. Microspheres have the lowest surface-to-volume ratio of any particle shape, so they exhibit the lowest resin demand. This yields a tighter, more uniform film with greater integrity. The spherical shape also contributes to enhanced flow and leveling, and easier application.
The high surface hardness and chemical inertness of SPHERICEL® Microspheres imparts additional stain- and chemical-resistance to the product, for better durability.
When used in coating formulations, SPHERICEL® Microspheres improves the effectiveness of corrosion inhibitors like zinc phosphate, so that less is needed.
Since SPHERICEL® Hollow Glass Microspheres have densities ranging from 0.25 - 1.1 g/cc, they occupy a larger volume vs. other fillers, reducing the formulation weight, saving shipping costs.
Hollow spheres are used for thermal & acoustic insulation.
Hollow spheres allow lightweight autobody sealants and coatings.