Reliable Glass Bottles, Jars, Containers Manufacturer | Roetell

Types of Glass

The characteristics and applications of glass are far from simple or single. Even though many people believe that “glass is glass,” there are a plethora of different ways to make and use glass for diverse uses. Architects and designers are progressively using glass in structures because of its adaptability and versatility. It also improves a building’s look and feel by allowing light in, giving a sense of space, and adding basic modernism and elegance. Here is a list of popular glass varieties that are in the industry. Read on!

Annealed Glass(Standard Glass)

The annealing stage of the float process produces annealed glass, which is a fundamental product. The molten glass is left to cool slowly and steadily until it reaches room temperature, which relieves any internal tensions. 

The glass would fracture if there was no regulated gradual cooling and only a minor fluctuation in temperature or mechanical stress. Annealed glass is a basic product that is used to create more sophisticated glass varieties.

Glass is thermic treated and subsequently cooled throughout the annealing procedure to alleviate internal tensions created during the production procedure. The annealing temp range for most glass items is between 454 and 482 degrees Fahrenheit, which is the glass’s stress-buster point. The parts are then heated and soaked until the temperature is constant throughout and the tension is relieved sufficiently.

Succeeding the annealing process, the glass can be sliced, bored, or refined without fear of internal tensions causing it to fracture. Nevertheless, annealed glass fractures in long, serrated pieces if broken for any other cause. As a result, it’s typically utilized for operations where high strength and safety aren’t a priority.

Types of Annealed Glass

● Clear glass: is an annealed glass that has a high degree of pellucidity and limpidly.

● Tinted glass: an annealed glass with a varnish or layer that imparts colour while limiting transmittance.

● Frosted glass: a transparent annealed glass created by the sandpapered or acid etching technique. It has a hazy look due to its uneven, rough surface.

Applications of Annealed Glass

● Table Tops: Using annealed glass to give your furniture a modern edge is a great way to go. Because the glass has a gleaming sheen, it is a great choice for accenting your furnishings. Annealed glass may be used to make tabletops to give your home a contemporary feel. A table with a transparent glass top can also assist to open up the space in your room.

● Showcase: The visual perception of annealed glass is deformation-free most of the time. This characteristic of glass is ideal for creating displays for both your home and company. The glass has a beautiful shine because of its high-quality clarity. As a result, it perfectly matches the objective of a display.

● Diffused Lighting: If you want a diffused lighting arrangement, tinted annealed glass might help you reduce light transmission. Such a setting is excellent for a cosy bedroom, a tranquil hallway, or a relaxing living area. You’ll have more alternatives to select from because it comes in a number of colours, widths, and thicknesses. 

When it comes to interior design, annealed glass windows are the way to go. It will also shield you from harmful sun glare and ultraviolet radiation. Overall, a fantastic choice for your illumination requirements.

Heat Strengthened Glass

Semi-tempered or semi-toughened glass is what heat strengthened glass is. The heat strengthening method includes reheating annealed glass to around 1202 to 1292 degrees Fahrenheit and then rapidly cooling it, albeit not as swiftly as toughened glass. The heat strengthening technique improves annealed glass’s electrical and chemical strength, making it twice as robust as annealed glass.

When it fractures, the shards are about the same size as annealed glass, but they have a better chance of sticking together.

Due to its lower strength than tempered or toughened glass, it is not commonly used in balustrades or other structural uses, however, it is at times recommended when tempered glass is concerned about breaking into thousands of little fragments.

Tempered Glass or Toughness Glass

The most frequent type of glass used in balustrades and other structural uses is this one. Conduction, convection, and radiation are used to heat the annealed glass to around 371 degrees Fahrenheit. A homogeneous and instantaneous blast of air on both surfaces speeds up the cooling process. 

Distinct cooling speeds generate different physical characteristics in the surface and interior of the glass, resulting in compression stresses in the surface balanced by tensile stresses in the body of the glass.

How Tempered(Toughness Glass) is Made

Whereas annealed glass may be chemically converted into toughened glass by immersion in a potassium salt solution at 572°F, the glass bottle factory prefers to employ the heat toughening method to produce the highest quality tempered glass. The glass bottle designs from this are just amazing!   Synthetically toughened glass is weaker to heat toughened glass since it still fragments and cannot be considered safety glass sans laminating.

At Roetel, we heat the standard annealed glass to 1238°F using our state-of-the-art toughening furnace, which consists of ceramic bearings that drive the glass forth and back. The glass is heated for a short period of time before being cooled to 59°F. Throughout the tempering process, the surface of the glass gets practically molten, and it is then cooled externally using jets of cold air generated by industrial cooling equipment.

Where Used

Toughened glass is utilized in a number of classic ornamental and architectural uses because it is both super-strong and super-safe. These could occur in the home or in the workplace, such as in the automobile, technical, and leisure sectors. Shower doors and fridge trays, as well as mobile screen protectors and diving masks, are all potential uses.

Tempered glass is also thermally resistant and waterproof by nature. This makes it a great choice for glass kitchen splashbacks where extreme temps are a possibility, as well as glass bathroom work surfaces wherein high humidity is a regular occurrence. 

Glass is also suitable for frameless glass doors and wall dividers inside the home, including glass doors and windows outdoorsy the home, which must provide more security from the weather and may be subjected to stress from immoderate pounding and shocks.

Laminated Glass

Laminated glass is made up of two plies of glass that are permanently linked jointly with interlayers. Even when damaged, the interlayers cooperate to support and retain the glass, resulting in a robust, homogenous layer. Laminated glass is available in a variety of thicknesses and may be made with a variety of glass compositions or treatments to give variant characteristics, such as reduced emissions or improved insulation.


Laminated glass is a robust, yet transparent layer that may be used in a number of applications instead of conventional glass:

For use in structures at high danger of storms or other natural catastrophes.

As windows for businesses or houses that are more vulnerable to break-ins

Jewellery businesses, for example, use them as display cases for valuables.

Aquariums or zoos are two examples of animal enclosures.

Floors made of glass

Stairs made of glass


Roofs with glass panels

Benefits of Laminated Glass

● Enhanced protection: Because laminated glass is almost difficult to shatter, any unsanctioned person would have a difficult time gaining access. Even if a breach occurs, the interlayers maintain the structure’s strength, making enlarging the opening exceedingly strenuous.

● Minimized pollution: Low-emissivity glass can help to minimize heat absorption from the sun, allowing for less frequent usage of air conditioning and lower pollution.

● Extra design options: Laminated glazing comes in a variety of colours, tints, and tones, and may be either straight/ curved for a more versatile look.


Printing on glass bottles and containers is still a popular packaging choice for a variety of reasons, including product distinctiveness and premium brand identification. It also is easier with established glass bottle makers, since they offer variety, in terms of services.

That is why at Roetel, we are dedicated to ensuring that we meet our clients needs to the highest satisfaction level. Contact our team of experts and let them guide you. Best of luck!

Reliable Glass Bottles, Jars, Containers Manufacturer | Roetell