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Glass Compatibility & COE, What Does it Mean? Lecture with Henry Halem June 29, 2023

Glass Compatibility & COE, What Does it Mean? Lecture with Henry Halem June 29, 2023
Product Code: 1084GlassExpertWebinar
Availability: In Stock
Price: $45.00
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Please join us for a live, Master Glass Artisan Lecture SeriesTM entitled Glass Compatibility & COE, What Does it Mean? with glass artist and teacher, Henry Halem on Thursday, June 29, 2023 at 8:00 - 9:00 p.m. Eastern Time, 7:00 - 8:00 p.m. Central, 6:00 - 7:00 p.m. Mountain, and 5:00- 6:00 p.m. Pacific. For our international customers, you may use the following Time Zone Converter.

Whether You Flamework, Fuse, or Work At a Furnace… Glass Breaks!

But WHY? Is it Thermal Shock? Bad Annealing? Or Incompatibility?

How can you tell? How can you avoid it?

In this day and age, we tend to lean on numbers. We trust them blindly and without understanding.

For instance, do YOU trust the COE of your glass to determine compatibility? Most of us do.

 But we’re WRONG!

COE (Coefficient of Expansion) is only half of the story.

If you want to know the OTHER half, want to learn how to REALLY determine if different glasses will play together and stay together,

then this lecture is for YOU!

Join Henry Halem for this Glass Expert Lecture™ and gain a fuller picture of how glass behaves.

With your new-found understanding you will be in a much better position to determine compatibility

and have better outcomes.


Henry Halem is one of the founding members of the Glass Art Society and was the organization’s first president! He’s a wealth of knowledge and has been working glass since 1968, back when you had to THINK, test and experiment, because artists of the day had no compatibility labels on their glass and no firing and annealing schedules to lean upon.

His book, “Glass Notes” is a well-respected and influential reference guide for glass artists. A recipient of the Glass Art Society’s prestigious Lifetime Achievement Award, Henry’s work can be found at the Smithsonian, Corning Museum of Glass, and the Museum of Decorative Arts in the Czech Republic. After a 29-year teaching career at Kent State University, Henry retired and now devotes himself full time to working in his studio.

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**Within a week after the Webinar, everyone who purchases the class will receive an e-mail with the link to a recorded version of the Webinar. You will have unlimited viewing of the recording AND your link never expires!

**We suggest you test your connection well in advance of the event.**

If this is your first Webinar with us, you will need to install Adobe Connect on your computer using the appropriate link below.

Adobe for Windows:

Adobe for Mac:

If you have attended our Webinars in the past you may need to reinstall the Adobe Connect App to be sure you have the latest version in order to avoid complications during the event. Click the appropriate link above and download the App.

FOR MAC USERS: The new App can only be installed in Macs running OS 10.13 or later. If you have an earlier version of the Mac OS, you may not be able to use the Adobe Connect App. Instead, paste the event link directly into your browser window.

You can find out which version of the Mac OS you are running by clicking on the Apple logo on the top left of your computer screen. Select “About This Mac” and it will show you what version you have.

If you are using Mac OS 10.13 or later, you will be able to install the new Adobe Connect App. Delete your current App from your Applications folder and download the new App.

If you have problems installing or updating Adobe, try using a different internet browser. For help with Adobe Connect call 800.422.3623.

Procedure Note:  Please be sure the email address you give on your order is the one you wish to use to receive the webinar link.  Please be sure that [email protected] and [email protected] are on your safe recipients email list. You will receive a reminder email the day before the webinar. Please read it carefully as it will contain instructions about the webinar process.  

IT IS NOW POSSIBLE TO ATTEND A WEBINAR VIA iPHONE & iPAD using your computer’s browser. All you need to do is paste the link into your browser window.

However, bear in mind that the browser version DOES sometimes have performance issues, including audio problems. We still recommend using the Adobe Connect App wherever possible, which is not accessible via iPhone or iPad. It is up to you! You can view with any laptop or desktop computer. Compatible with all Operating Systems.

On the day of the event, you will receive an e-mail with a link that will allow you to access the workshop 15 minutes before showtime.  When signing in for the Webinar, be sure to use the Same Name that you used when you placed your order.