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Tooling and Fabrication of Crystallized Glass

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Tooling and Fabrication of Crystallized Glass

Posted on 25 June 2014 by cradmin

With the continued interest we are seeing in the crystallized glass category, and considering there isn’t a lot of good information out there on the subject, we decided to share this video with you by Alpha Professional Tools, which shows the processing of crystallized glass using their suggested tooling and methods. While, obviously the company’s tools/tooling are being used in this video, there are likely other brands that would work, but this can provide a starting point for the types of equipment and tooling you would likely want to use if fabricating crystallized glass materials.

You may also be interested in our research on nano-crystallized glass that was posted previously.

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Nano-Crystallized Glass: What Are Your Thoughts?

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Nano-Crystallized Glass: What Are Your Thoughts?

Posted on 29 July 2013 by CRadmin2

We recently received an email, here at CountertopResource.com, asking for information on a relatively new surfacing product. This product is commonly referred to as nano-crystallized glass, but it is also known as nano-crystal stone or nonporous marmoglass. After checking the usual sources, we found little readily available information on it, so we decided to do some additional research and see what we could find. Here is what we came up with:

Most nano-crystallized glass is manufactured in China and imported into the United States, but a few American companies feature branded versions, such as Glassos® from CCS Stone Inc. This material is said to be easily cut and tooled with the same techniques and equipment that is used for stone, but some firsthand accounts state it presents a few unique difficulties.

Features of Nano-Crystallized Glass

Nano-cystallized glass is suitable for use as a countertop material, but it can also be used for walls, floors, windowsills, sinks and tabletops.

Much like ordinary glass, it is made of natural materials, and it is chemically inert. Additional features of nano-crystallized glass are as follows:

  • Scratch and stain resistant
  • Heat resistant
  • Hard and durable
  • Nonporous
  • Recyclable

Nano-crystallized glass is much harder than ordinary glass or even standard crystallized glass. On the Mohs scale, it scores from 6.0 to 7.0, and it has a compression strength rating of 400 MPa, a flexural strength rating of 82 MPa and a rupture strength rating of 35 MPa.

Additionally, nano-crystallized glass has a water absorption rate of 0.004 percent to 0.02 percent, and it is totally radiation free. As expected, the material also has a DIN 4102 flammability rating of A1.

Consumers have stated that nano-crystallized glass is a preferred surfacing material because of its nearly pure white color, which is a natural byproduct of its manufacturing process. It is also quickly becoming known as an excellent substitute for white marble.

Fabrication of Nano-Crystallized Glass

Nano-crystallized glass is manufactured from a blend of natural materials that is 75 percent silica and 25 percent other natural minerals. The mixture is poured into a mold to form either a slab or a tile, and it is heated to a temperature ranging from 1,550 degrees Celsius to 1,800 degrees C. for 24 to 26 hours. The high temperatures and the length of time align the molecules of the glass on a nanoscopic scale, which it retains upon cooling and hardening.

Slabs of nano-crystallized glass are commonly available in sizes of 12 ft. by 12 ft., 16 by 16 ft. and 18 by 18 ft. with thicknesses of 3/8 in. or 1/2 in. Tiles are usually made to 24 in. by 24. in. by 3/4 in. Most slabs and tiles are polished by default, but they can be given a CNC satin finish. In addition, the material can be convexly or concavely manufactured for basins and other custom designs.

The cutting of nano-crystallized glass is usually accomplished with continuous blade saws, but it can also be honed, chiseled or sandblasted. The edges can be ground to a bullnose or chamfered. Remnants are 100 percent recyclable.

Installation of nano-crystallized glass is a simple process. The material does not need to be sealed, but a sealer may be added for additional protection. The slab or tiles are most commonly glued to a substrate with a clear resin product, such as Tenax Glaxs BM75, which is engineered specifically for glass and does not discolor from exposure to UV light.

Experiences With Nano-Crystallized Glass

Although the above description makes nano-crystallized glass seem like a wonder-material for countertops, we at CountertopResource.com have heard a few complaints about it being difficult to work with. We have heard that standard CNC tools and continuous blade saws pose some problems, and that hand tools that work well with it are hard to locate.

We know that diamond disc saw blades are manufactured specifically for

cutting nano-crystallized glass slabs, and CCS Stone Inc. offers a full line of tools and supplies for its Glassos brand products, but we wanted to know your take on the subject.

Have you had any experience with working with nano-glass? If so, whatbenefits or complaints do you have about this material? Let us know by email at info@countertopresource.com or simply post a reply to this article right on the website.

You may also be interested in this video on tooling and fabrication of nano-crystallized glass.

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