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.
- 110P8
- 60P18
- 34P30
- 25P45
Grades 110P8 and 60P18 are used in many high performance polymer systems.

Sphericel® Typical Properties
Shape	Spherical, Hollow non-porous microspheres
Color	White (min. 90.0 L value on dry powder)
Composition	Proprietary Glass (Fused Borosilicate 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

MSDS:
SPHERICEL®
SPHERICEL® with Coupling Agent

Technical Data Bulletin:
SPHERICELL®
SPHERICELL® 25P45

Q-Cel® products reduce density, improve processing and flow, increase filler loading, reduce shrinkage, improves sandability and machining qualities, offers sound and thermal insulation while reducing cost per part by replacing expensive resin.

Q-Cel® Lightweight hollow spheres offer latitude in manufacturing low density products. These single cell hollow microspheres appear as a white free flowing powder. The spheres have a hydrophobic coating, except Q-Cel® 300, which is hydrophilic. The primary function of a filler is to reduce resin usage, but Q-Cel® can also reduce density. Additionally, Q-Cel® can enhance other properties as well.

- Light Weight Spheres: 300, 6014, 6019, 6019S, 6024, 6028
- High Strength Spheres: 6036, 6042S, 6048
- Reduced Alkali Spheres: 7019, 7023S, 7028, 7036, 7040S

SPHERIGLASS® solid glass spheres are microspheres with a density of 2.5 g/cc. The spheres are very strong, with a crush strength in excess of 30,000 psi. Moh’s hardness is 6.0-6.5. Glass spheres have very low oil absorption, about 18 g oil/100 g spheres. Because the spheres are nonporous, they do not absorb resin in a polymer system.

SPHERIGLASS® spheres are available in two glass compositions: A-glass (soda-lime glass) and E-glass (borosilicate glass). In most thermoset and thermoplastic resin systems, A-glass is satisfactory. E-glass is recommended for use with polycarbonate, acetal, and PTFE systems or other alkali-sensitive resins.

SPHERIGLASS® spheres are available with coupling-agent coatings. Use of coated spheres is recommended when better adhesion between glass and resin is needed. Please contact Potters for a recommendation.

Technical Data Bulletin: SPHERIGLASS®

SPHERIGLASS® Solid Glass Spheres: A Glass

SPHERIGLASS® Solid Glass Spheres: E 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. MSDS: SPHERIGLASS® A Glass SPHERIGLASS® A Glass with Coupling Agent Coating 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. Typical Particle Size Product Grade Mean Value 1922 203 2024 156 2227 119 2429 85 2530 71 2900 42 3000 35 4000 25 5000 11 6000 7

Potters E glass spheres are manufactured from a borosilicate glass composition, similar to fiberglass. E-glass has a refractive index of 1.55. MSDS: SPHERIGLASS® E Glass E-glass is recommended for use with polycarbonate, acetal, and PTFE systems and with other alkali-sensitive resins. Compared with A glass, E glass has a higher softening point and a lower coefficient of thermal expansion. Typical Particle Size Product Grade Mean Value 3000E 35