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Markets and Products

Market	Product
Highway Safety	- Standard Highway Safety Marking Spheres - Premium Highway Safety Marking Spheres - VISIBEAD® & VISIBEAD® Plus II Highway Safety Marking Spheres - High-Index Retroreflective Glass Spheres - Premix and Intermix Spheres - VISIGUN® Highway Safety Marking Sphere Dispenser
Electronic Applications	- CONDUCT-O-FIL® Conductive Additives - SPHERIGLASS® Solid Glass Spheres
Polymers	- LUXSIL® Cosmetic Microspheres - Spacer Application Glass Beads for Adhesives - SPHERICEL® Hollow Glass Spheres - SPHERIGLASS® Solid Glass Spheres - Q-CEL® For Composites - Q-CEL® For Automotive and Marine Putty - Q-CEL® For Construction Materials
Metal Finishing	BALLOTINI™ Impact Beads
Grinding, Mixing & Plating	- Technical Quality Spheres - Glass Spheres - A Series, P Series
Industrial Explosives	- Q-CEL® Hollow Spheres
Oil Drilling	- Oil Drilling Fine Grade Glass Beads - Oil Drilling Coarse Grade Glass Beads

Products in Polymers / Paints and Coating

TopCoats
Benefits of Potters Solid and Hollow Glass Spheres

Benefit
Small Particle Size for Class A Finish	Potters Industries supplies fine grade products for a variety of high performance applications in paints and coatings. SPHERIGLASS® Solid Glass Spheres are available in particle sizes small enough to provide a Class A finish in topcoats. With a density of 1.1 g/cc and a top particle size of 30 microns, SPHERICEL® Hollow Glass Spheres can also be used in this application.
Resin Extension	Adding microspheres to paint or coating formulations can reduce their cost.
VOC Reduction in Solvent-Borne Applications	Adding SPHERIGLASS® solid glass spheres or SPHERICEL® hollow glass spheres enables formulators both to reduce the Volatile Organic Compounds (VOC's) and to increase the solids and in their formulations. When an irregularly shaped filler is added to a formulation, its viscosity increases. A spherical extender, by contrast, allows the formulator to reduce solvent content without increasing viscosity. When spherical extenders replace irregularly shaped fillers, in fact, formulation viscosity can be decreased.
TiO2 Substitution	SPHERICEL® hollow glass spheres may be use to replace some of the TiO2 in a formulation. The hollow glass sphere redirects the angle of light, imparting opacity. Depending on the formulation, equivalent tint strength can be achieved with 2% - 5% replacement of TiO2.

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Primer Paints
Benefits of Potters Solid and Hollow Glass Spheres

Benefit
VOC Reduction	Adding SPHERIGLASS® solid glass spheres or SPHERICEL® hollow glass spheres enables formulators both to reduce the Volatile Organic Compounds (VOC's) and to increase the solids and in their formulations. When an irregularly shaped filler is added to a formulation, its viscosity increases. A spherical extender, by contrast, allows the formulator to reduce solvent content without increasing viscosity. When spherical extenders replace irregularly shaped fillers, in fact, formulation viscosity can be decreased.
Improved Corrosion Resistence and Film Integrity	The low oil absorption of glass provides important performance benefits in primer paints. Because glass spheres do not absorb resin, more resin is available to create the film. Glass spheres also help to disperse agglomerated materials and may improve utilization of corrosion inhibitors. As a result, primer formulations with glass microspheres show much improved corrosion resistance despite lower levels of corrosion inhibitor.
Resin Extension	Adding inexpensive microspheres to paint or coating formulations enables formulators to reduce their use of costly resins.
Strength	SPHERIGLASS® solid glass and SPHERICEL® hollow glass spheres are strong enough to survive Cowles dispersion.

Sealants and Underbody Coatings

Lightweight PVC Plastisols have become the material of choice for automotive underbody coatings to protect the undercarriage from corrosion and chipping. Q-CEL® hollow spheres can reduce the compound density of PVC Plastisols and seam sealers.

As tiny particles of encapsulated air, Q-CEL® hollow spheres efficiently displace some polymer in plastics formulations, since a very small weight produces a large volume displacement.

SPHERICEL® Hollow Glass Spheres

SPHERICEL® hollow glass spheres are used to enhance performance and reduce viscosity in paints and coatings and as lightweight additives in plastic parts. They are chemically inert, non-porous, and have very low oil absorption.

Grades 110P8 and 60P18 are used in many high performance polymer systems.

Sphericel® Typical Properties
Shape	Spherical
Color	White
Composition	Proprietary Glass
Density	1.1 g/cc and 0.6 g/cc
Particle Size	Mean Diameter 11 and 18 microns
Hardness	6 (Moh’s Scale)
Chemical Resistance	Low alkali leach/insoluble in water
Crush Strength	>10,000 psi

SPHERIGLASS® Solid Glass Spheres: A Glass

Potters A glass spheres are manufactured from a soda lime glass composition, like window glass. The refractive index of A-glass is 1.51 - 1.52.

SPHERIGLASS® solid A glass spheres are available in mean particle sizes from 7 to 200 microns. The 3000 and 4000 grade products, with a typical mean particle size of 35-25 microns, are the product most commonly used for resin extension in polymer applications. The 5000 and 6000 grade products are most commonly used in paints and coatings.

In general, smaller spheres improve impact strength. Larger spheres tend to improve flow properties.

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