Leading Glass Forming Companies

Though there are a several ways that glass can be processed to make different products, there are two very distinct methods that have been practiced for many years – glass forming and glass molding. Of the two, glass forming has been used for hundreds of years. In very simple terms, it is taking a bubble of molten heated glass and blowing into it to form a drinking glass, vase, or pitcher. Read More…

Glass Forming Manufacturers

S & S Optical has been leaders as glass fabricators in a variety of industries and markets for over 50 years. We offer a variety of different glasses to fit all of your needs. Also, we have a multitude of capabilities and services to offer-polishing, grinding, edging and more. To learn how we can fabricate your parts contact us today for a quote. We care about customers and quality service.

S & S Optical Company, Inc. $$$

Glass cutting is a varied industry, and we have done it all for the past 50 years. We believe in manufacturing high quality glass products that will exceed customer expectations every time.

Pegasus Glass $$$

Founded in 1990, Technical Glass Products is a fabricator of Fused Quartz Glassware. We maintain a broad inventory of labware, flat stock, rod and tubes in addition to providing custom fabrication using state of the art equipment to suit your needs.

Technical Glass Products, Inc. $$$

Established in 1947, we have been providing glass cutting using very precise tolerances in order to ensure that our products are among the best. Our skilled designers and technicians are available around the clock in order to work with you from design to delivery to ensure that you are receiving a product that will fit your needs perfectly! For more information on what we may be able to do for...

Insaco Inc. $$$

With over 40 years of experience, Specialty Glass Products specializes in glass fabrication and glass cutting of custom precision parts made from all types of glass, filter glass and quartz. Our strengths are in glass fabricating, miniature machining, thin lapping and polishing.

Specialty Glass Products, Inc. $$$
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placeholder image S & S Optical Company, Inc. Pegasus Glass Technical Glass Products, Inc. Insaco Inc. Specialty Glass Products, Inc.
In the modern era, glass forming, formally known as glassblowing, has become a very technical process involving complex machinery and equipment. Though heated molten glass stands at the center of this form of glass production, the shaping of it has been improved to the point of being able to make hundreds of glass products in a very short amount of time.

Glass comes in three different forms – soda lime, borosilicate, and phosphate. The two types that are used in glass forming are soda lime and borosilicate. Phosphate glass is a specialty product produced for industrial and scientific use. The type of glass we most commonly see is soda lime, which is the type that is made from silica sand. Borosilicate is used in glass forming to make cookware and heat resistant materials. Regardless of whether the glass is soda lime or borosilicate, the forming process is the same.

Glass forming begins with the combining of the raw materials. Soda lime glass is a combination of silica or sand, soda or sodium oxide, and lime or calcium oxide. When mixed, the largest amount, or 70%, of the mixture is silica. Soda is added to lower the melting temperature of the molten mix while lime stabilizes it. The mixing and heating is done in the batch housing where each step is carefully monitored and controlled.

Once the mixture is completed and molten, it moves to the production center where it will be formed into different products. The production center consists of a set of molds. The batches from the batch housing are cut into little equal sized pieces called gobs. They are trimmed to the exact size needed for the product being produced. The gob has a puff of air forced into it to shape the parison, which is placed into the mold where it receives a stronger burst of air that forces it against the sides of the mold. Once formed, the molded product is allowed to cool before being moved to the finishing room.

The fully molded product is initially coated with a thin layer of metal and takes on the appearance of the finished product. When molded items cool, the outside that is exposed to the air cools faster than the inside creating an unevenness to the glass.

As with metal molds, glass is annealed, a process where the glass is heated and cooled multiple times until the inside and outside temperatures match.

The final stage of the process is the application of a polymer bath designed to give the exterior of the product a shiny finish and make it scratch resistant, increase its durability and strengthen it.

When glass has completed its use, it can be returned to a recycling center to be taken back to the production facility to be used in the creation of new glass products.

Glass Cutting Power Pages

Glass Cutting

Glass Cutting

Glass cutting is a method of weakening the structure of glass along a score line that can be broken by applying controlled force; this separates the glass into two sections along the score line or fissure. Regardless of the application, the cutting of glass is...

Quartz Glass

Quartz Glass

Quartz is one of the most abundant and widely distributed minerals in nature. Quartz is the only stable polymorph of crystalline silica on the Earth‘s surface. It is found in all forms of rocks: igneous, metamorphic and sedimentary. It becomes concentrated in...

Friction Materials

Friction Materials

Friction materials are substances that produce friction between solid surfaces in order to control or stop forward or backward motion. The materials used to produce friction materials include organic and non-organic substances such as resin, ceramics, fibers, and metals...

Ceramic Machining

Ceramic Machining

Ceramic machining refers to the manufacture of ceramic materials into finished usable products. Machining involves the continual removal of material from the workpiece, in this case, ceramic material...

Graphite Machining

Graphite Machining

Graphite machining is a method for shaping, forming, configuring, and cutting graphite material to produce a wide selection of parts and components for industrial applications. The success of graphite machining is dependent on the types of tools used...

Metal Etching

Metal Etching

Metal etching is a metal removal process that uses various methods to configure complex, intricate, and highly accurate components and shapes. Its flexibility allows for instantaneous changes during processing...

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