Made in the USA
Made in the USA 
Borosilicate Glass Manufacturer of Lenses, Reflectors, Refractors

Jeannette Specialty Glass in Business for Over 40 Years

by Administrator28. October 2019 16:50

Jeannette, PA has been termed the “Glass City” as once a flourished city with 7 different glass manufacturing facilities. Today JSG is the last producing manufacturer in this great town. With the onset of industrial lighting production being transferred overseas, JSG was forced to evolve and diversify with new product categories.

JSG provides additional capabilities in product finishing such as water-jet cutting, sandblasting and coatings.

Jeannette Specialty glass is a Woman-Owned business which offers many incentives and grant opportunities for government projects and developmental business ventures. JSG is proud to be an American Manufacturer.

Click on the link below to read more:   


Jeannette Specialty Glass Manufacturing Capabilities

by Administrator30. September 2019 11:36

Jeannette Specialty Glass has been producing “Hard Roc” Borosilicate glass since 1904 in the coveted “Glass City” in Jeannette PA. JSG’s glass products offer a wide range of production options and capabilities for product advancement and innovative designs. Our experienced team specializes in contract manufacturing and working from concept to final production. Supplying customers with superior quality borosilicate glass and maximizing yields for competitive pricing.

“Hard Roc” Borosilicate Glass Benefits

·         Borosilicate Glass, “HR-37” – Owned Formulation

·         Explosion-Proof & Shatter-Proof

·         Durability-Chemical, Scratch, Stain and Thermal Shock Resistant

·         Environmental and Chemical Corrosion resistance

·         Clear colorless glass

·         UV Resistant-Non-Weathering, Non-Yellowing, Non-Fading and Non-Discoloring

Jeannette Specialty Glass equipment capacities include a semi-automatic press with continuous melting furnace. JSG specializes in press and mould manufacturing with a multi-step quality control department. Additional testing includes impact and up-shock, strain, thermal shock and annealing.

You can go to for more information.  



by Administrator30. August 2019 09:46

Cooking healthy involves a variety of cooking methods. Baking is definitely healthier than frying your foods and what could be healthier than a JSG SAFE HEALTHY borosilicate bakeware. Quality bakeware is a must and a kitchen essential and offers just that.

Safety is a big factor in deciding what baking dishes to purchase. A lot of inexpensive glass baking dishes may shatter at higher heats due to the fact that they are composed of a soda-lime tempered glass, which can have uneven tempering.

Jeannette Specialty Glass “Hard Roc” Borosilicate glass bakeware is a safe healthy alternative when it comes to kitchen essentials. Borosilicate glass is shatterproof and has a higher impact resistance as well.

Here are some reasons why Jeannette Specialty Glass Bakeware is the SAFE and healthy choice:

  •     Made in the USA
  •     Shatter-poof
  •     Scratch Resistant and stain resistant
  •    Non-porous and hygienic
  •    Thermal shock heat resistant 

Glass vs Acrylic

by Administrator30. May 2019 11:57

Why choose glass over acrylic? Over time when acrylic is exposed to outdoor elements and then sun, it starts to turn  yellow. When installing outdoor lights, the light isn't as bright and is very dull, they start to weather and you will need to replace the fixtures more often.


CHOOSING GLASS, Borosilicate Glass, is your best option. The cost may be more expensive up front but it’s a lifetime product. It’s also retro-fit to other post top refractors, making it easier to upgrade or replace. 


Let’s face it, the glass globe looks a lot nicer, cleaner and will last for years to come.


To view more of our glass globes, go to

JSG Monthly Safety Topic for October: Bending/Lifting

by Administrator2. October 2018 09:52

Here at JSG, safety is FIRST and FOREMOST out on the production floor. Each month a different safety topic is implemented and discussed with ALL team members. For the month of October, Bending/Lifting is the key focal point of discussion. Tom Kadar, Manufacturing Manager, shares his input and requirements: 

"Bend your knees, Lift with ease" is a common phrase used in manufacturing or any lifting type atmosphere.  Most common back failures are caused by these common mistakes:

  • Only lift weight that you can handle before attempting to lift something. Judge if you will be straining to lift it.
  • Use mechanical means whenever possible (i.e. Forklift, Pallet Jack, Chain Hoist, Dolly or Cart)
  • Buddy lifting; do not lift your friend but call on a co-worker to assist you. Don’t be a hero.
  • Use mechanical leverage to maneuver things: Bar, Chain, Lifting clamp to allow yourself to not lift from ground level if possible.
  • As the phrase above says, bend your knees and lift with ease.  Use your hips and not your back strength.
  • Lift with the weight as close to your body as possible to lessen strain on your lower back. Doing this lessens the leverage needed to lift the weight and the stabilization muscles used.
  • Keep your chest forward when lifting arching your back.  Doing this allows your back to use its muscled to maintain posture and not to lift the load being lifted.


by Administrator7. September 2018 15:11

3M Company has recently created a new version of its glass bubble technology that could help cut the weight of sheet-molded composites by up to 40%. These new S32HS glass bubbles are created from soda-lime borosilicate glass and are an added ingredient, to take the place of the polymer or filler material that is used in typical sheet-molded composites.  3M’s glass bubbles are so small, measuring a remarkable 25 μm in diameter, that tens of thousands of them are often used in these sheet-molded composites.  Furthermore, 3M’s new S32HS glass bubbles and their extreme weight reduction are groundbreaking for molders, by making sheet-molded composites more relevant and more interesting, opening the possibility of numerous new applications. 

Introducing our NEW Borosilicate Glass Pedicure Basins for the Salon & Spa Market!

by Administrator14. June 2018 10:10

At Jeannette Specialty Glass, we serve the salon/spa market by producing some of the finest glass pedicure basins available anywhere, and we are so excited to introduce a NEW line of Borosilicate glass basins!

We are even more thrilled to give YOU the ability to customize YOUR OWN glass basins.  Since our basins are carefully crafted out of Borosilicate glass, you can create your basin with stunning designs of any size, shape, or pattern in a variety of colors.  

Our glass basins are not only magnificent in their beauty, but they are also long-lasting and durable, as they are resistant to heat, thermal shock, scratches, and wear.  

Furthermore, with our new pedicure basins, we aim to set your spa apart from the ordinary!  Contact us today to learn more, or visit our request a quote page.

In addition to basins, we provide other decorative glass accessories for salons including glass manicure trays, decorative sinks, and corporate gifts.  

                                  Gold Reflections

                                     Black Nickel

                                   Crystal Reflections


Review is in!

by Administrator14. May 2018 11:38

A special 'shout out' to The Cooking Pot for reviewing Jeannette Specialty Glass/JSG Oceana bakeware!

"When I opened the box, I immediately noticed the sturdy and heavier construction and thicker glass as compared to our Pyrex glassware, and those from other glass bakeware manufacturers that use soda lime glass.  You will immediately notice and feel the difference," says The Cooking Pot.

Check it out! Visit to learn more!


Bake ware

JSG Oceana Accepts PGH Business Times' Family Business Award

by Administrator1. May 2018 15:33

SG Oceana was honored with a Pittsburgh Business Times' Family Business Award on Tuesday, May 1st. The Family Business Award honors local family-owned, multi-generational businesses within the Pittsburgh region. JSG Oceana personnel were on site to accept the award. 

A special 'thank you' to the Pittsburgh Business Times for the award and recognition!


Glass Used for Healing Purposes?

by Administrator4. April 2018 10:00

Yep! According to Glass Magazine...

"In recent years, glass has emerged as a critical design element for both hospitals and healthcare facilities. Glass on the interior and exterior allows natural daylight to penetrate deeper into buildings, promoting patient comfort and accelerating recovery." 

Click here to read more! 

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