WaterJet Cutting Glass: All You Need To Know!

December 12, 2021


Glass can be cut with a Waterjet.

Waterjets are able to cut through glass quickly and efficiently without interfering with or affecting the internal structure. Waterjets can make all these possible thanks to the many modifications that are available.

A high-pressure water pump is connected to the cutter. This increases the flow of water from the nozzle at a set speed. The WaterJet Cutting Glass is further assisted by the addition of abrasives like garnet or aluminum oxide to the water stream.

Their controlling water stream technology allows for even the most difficult cuts to be made economically and smoothly. Their pinpoint precision allows them to accurately cut materials to a thickness of 0.1mm.

What Materials Can A Waterjet Cut?

Waterjet cutting is a time- and money-saving method that cuts glass quickly. Even the most complicated forms of glass can still be cut without distortion. Waterjet cutting is non-thermal and will not cause heat-affected areas in your waterjet cut glass subjects.

However, the waterjet won't vibrate your glass, so there is no need to worry about unfinished edges or second cuts.

Can Tempered Glass be Cut with Waterjet?

Let's face it, even the most powerful weapon can't bring down foes who just won't quit when it comes time to be cut.

Tempered glass is an extremely strong foe and will not yield to being cut.


These glasses are designed to shatter and break into millions of small fragments when they reach their maximum tensile strength. They are already subject to immense stress, so any additional force on them will cause them to fracture.

These glasses can withstand being cut or moved around by pressure. These glasses are not intended to be cut. Even the slightest pressure from a waterjet will just break them into pieces.

It is not recommended to cut down the tempered glass with waterjets. We are sorry, glass-cutting enthusiasts.

A waterjet can cut bulletproof glass.

Bulletproof glasses can withstand nearly 30 rounds of the AK-47 Rifle. They can't provide protection at 60,000 PSI, however.

Waterjet can bend out and walk through 2 inches of bulletproof glass. Ironically, a waterjet can even cut out the shape and size of a bullet into the glass. It's funny that bulletproof glasses can withstand most projectiles but not water streams.


Imagine a waterjet stream of 60,000 PSI releasing a gun and shooting it towards a bulletproof window. Whoever is behind it will be surely dead!

Can Waterjets Cut Mirrors?

For some machines that use lasers to cut through mirrors, this is a problem. The immense reflectiveness of mirrors can spell disaster. Waterjets are a cheaper and less dangerous way to cut mirrors.

Its cold, continuous cutting process means that mirrors are not protected from waterjets. It can pierce through mirrors and cut straight across them without cracking or throwing glass particles.

Can Waterjet Cut Float Glass?

Float glasses(Soda Lime & Low Iron) can be easily fabricated using an abrasive-waterjet cutting method. The precision glass cutting settings within the fabrication capabilities allow you to easily cut through float glasses.

To achieve smoother edges and a better finish, use an abrasive waterjet that has a higher mesh (preferably between 100-150).

You can even do certain piercings in float glasses if you have the right pressure and stream thickness.

Glass tiles can be cut with waterjets.

Do you need to cut glass tiles for your home? You don't have to worry about it, as any glass block you choose can be safely inserted and cut in the desired shape. Glass tiles are more durable than other glasses, so they are easier to cut or handle under a waterjet stream.

High-pressure waterjets can do the job quickly and without any distortion or damage to the finished product.

Because of their high resilience and hardness, glass tiles can cut much better than other types of glass. You won't need to use brittle cutting modes or take extra care with glass tiles.

How can you cut stained glass with a waterjet?

Traditional methods for cutting stained glass were difficult and often used by artists. Waterjets have become so popular that they are now able to do their art with pinpoint precision and control.

Waterjets can be used to cut stained glass, making it easy for architects and artists. Because stained glass is thin, it allows for single-pass cutting. It also reduces scrap production. This allows you to recycle stained glass for future use.

Can mosaic glass tiles be cut with waterjets?

The tiles made from mosaic glass are thicker than other glasses and will therefore require more pressure. You may also need to be patient. These tiles are easily cut, so you won't need to adjust pressure or angle as often.

However, this is not the end. You can create signature mosaic glass tiles with the waterjet's incredible design and precise capabilities. Waterjets can be used to create curvier or more complex lines while still retaining the durability of each material.

Waterjet-cut mosaic tiles are almost like a blank canvas. You can create stunning mosaic tiles in any shape or form that you like. This will leave a rather big impression on your guests. Waterjets are the best choice for cutting mosaic tiles.

Can Windshields and Laminated Glass be Cut with a Waterjet

Windshields and laminated glasses are subject to traditional risks when they are cut using glass cutters, diamond wheels, sandblasting, or diamond wheels. This is why you should leave this task to the machine, if possible. Delamination can be controlled using the settings that you choose.

To prevent delamination, try to pierce as few times as possible. You can also use low pressure to reduce the chance of piercing. Although you may need to be more careful, this is a cost-effective and efficient method of cutting laminated glass.

Many layers are found in laminated materials. Waterjets can damage layers by passing through them sideways. The high stream of waterjet usually only flows in one direction. It is best to drill holes in laminated glass prior to using it.


The thinner laminated glass has a lower chance of delaminating because they are easier to pierce without water getting in the wrong places. To make tiny holes in glass, reduce the thickness of the waterjet stream, use abrasives and apply lower pressure without damaging the material.

How Waterjet Cutting Glass Works

This is a quick overview of how most types of glass can be cut. This works for most cases. However, WaterJet Cutting Glass may be required in certain cases.

You can use abrasives like garnet or aluminum oxide with a water jet at a pressure of approximately 10,000 to 20,000 PSI.


It is important to ensure that the timing of the abrasives entering the water stream is perfect. Otherwise, the glass will crack or be damaged. You will get the job done quickly and efficiently if you have the settings and the mixture right.

To make the water flow during cutting, turn on the abrasive flow prior to the water. To absorb the force from the water, you can even place plywood on top of the glass. This will allow time for the abrasives to be properly mixed with the water before the waterjet cutting process begins.

Glasses that are fragile or easily damaged will need extra support. These could be thick Styrofoam, plywood, or other dense materials.


They must be soft enough to allow water not to jump back into the glass and cause damage. This will provide a smooth surface on which the glass can safely rest.


Prevent crack formation by making piercings before you start designing. To do this, you can use lead-in to push the piercings further towards the end of the glass. Or you could use any other piercing method that is suitable for the material. When working with fragile glass, you can turn on the "very brittle mode."

Due to high-pressure water's dissipation energy, glass materials can heat up in the water catchment tank. It is best to avoid letting the glass material rest or washing it with ice-cold water. This could cause cracking and shattering.

To achieve a smoother and cleaner finish around the edges, use industrial-quality abrasives that have a larger mesh size than normal in the 100-150 range.

WaterJet Cutting Glass has a lot of information and knowledge. To get a better understanding of the entire process of WaterJet Cutting Glass, I recommend that you visit Techni Waterjet to see it.


This is all we could provide about waterjet cutting glass.

It is possible.

It is essential that you do this in the most cost-effective and efficient manner. Although there will be some adjustments and bumps in the road, it is still possible and definitely worth a try.

Carlos Diaz
I believe in making the impossible possible because there’s no fun in giving up. Travel, design, fashion and current trends in the field of industrial construction are topics that I enjoy writing about.

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