In House Moulds
Borosilicate Heat-Resistant Glass Manufacturing Capabilities
Jeannette Specialty Glass is a borosilicate
(heat-resistant) glass manufacturer of lenses,
reflectors, refractors and more. Low expansion
borosilicate glass ideal for commercial, industrial,
and mechanical needs.
Contact JSG or
request a quote today to
learn how we can bring your project to life with
At Jeannette Specialty Glass, we're known for our exceptional
borosilicate heat-resistant glass manufacturing capabilities, including more
than 500 "in-house" moulds crafted especially for the demanding glasswork
JSG provides for commercial, industrial, and military glass needs.
When we say "Made in the U.S.A." we mean it. Our 120,000
square foot manufacturing & warehouse facilities, located in
Jeannette, PA (the Glass City) has the depth of glass
manufacturing resources other providers can only dream of.
Our specialty glass products are created using JSG's own
proprietary HR-39 "Hard Roc" borosilicate glass. That means:
- Clear Colorless Glass (not green) unaffected by Weather,
Sunlight and other factors
- Durability - Chemical, Scratch, Stain,
and Thermal Shock Resistant
Over 500 "In-House" Moulds to choose from.
JSG today for more information on our In-House Moulds and
the industry leading glass manufacturing capabilities you've
been looking for.
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