Hammill and Gillespie has announced the availability, beginning March
1, of Gillespie Borate, the company's newly developed borate for the
ceramics industry. Gillespie borate was developed over the past year
through a careful formulation process that has resulted in a virtual
chemical match to Gerstely borate, a long-time favorite ceramic raw
material that became unavailable early last year. Gerstley borate was
a valuable glaze constituent for many years and is a key part of many
interesting and successful glazes over a range of firing conditions.
The new product, a mixture of ulexite (Na
2O.2CaO.5B
2O
3.16H
2O) blended
with various clay minerals and alkaline earth carbonates and
silicates, contains approximately 25% B
2O
3, 23% CaO, 4% total alkali
and 31% loss on ignition.
For more information, call (800) 454-8846 or (973) 994-3650, fax
(973) 994-3847, e-mail hamgilinc@aol.com or visit
http://hamgil.com.
