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Have Questions? We Have Answers!

With over 25 years of printing experience, Miller Process Coating Company can help you with all of your screen printing questions. From the designing and engineering of custom printing machines, to their application, our experts are happy to assist you. Below, we have answered some frequently asked questions about screen printing. Read on to learn more about the industry.

What size screens should be used when printing a round item, such as a mug?

The length would be the circumference of the mug, minus the width of the handle. The height of the screen must be large enough that the handle of the mug is able to clear the screen frame and large enough for your imprint.

How should I register multi-color on a mug?

The handle of the mug is used as a hard registration point. Subsequent imprint alignment (left to right) is determined by the handle location.

What size mesh should I use when printing on glass, plastic, stainless steel, and ceramic?

Mesh size is determined by the kind of ink that you are using. Normally, the ink manufacturer will recommend the mesh size. Average mesh count is from 200-330.

Can I print tapered ware — such as mixing glasses, Pilsners, etc. — on your screen printing machines?

Of course! Our machines have a “tilting chuck” system that allows you to adjust the ware at the correct print angle to the screen (the screen remains level). Most other machines require you to angle the screen to run to the bottom of your screen continuously, which means that you have to keep moving the ink around the screen. To get the least distorted image when printing on a taper, we recommend using a gear-driven machine.

What does ‘gear-driven’ mean?

A “gear-driven” machine is one where a gear is attached to the chuck/tooling that matches the outer diameter of the imprinted piece (center of imprint). This gear is locked/meshed with a rack to the screen. As the piece is rotated, the screen moves across the piece at the same speed.

What kind of ink should I use on ceramic and glass mugs?

There are two different kinds of ink: Epoxy and conventional color (glass frit). Epoxy ink is usually a two-part ink that must be mixed. It cures anywhere from 10-30 minutes at 200F to 450F, depending on the manufacturer. Most Epoxy is dishwasher safe, but it may wear and scratch off with normal use. Conventional color must be fired in a kiln or lehr for 2 1/2 to 6 hours. Conventional color is the most durable ink — it cannot be scratched off with normal use.

Still Have Questions?

Let us help. Feel free to reach out to us with your screen printing questions, and we would be happy to assist you. Contact us today.

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