Uroboros and Effetre

[ccaronn]

I purchased a couple of rods that are uroboros (Rubino and champagne opal) because I liked the colors. Can I mix them with Effetre? What does uroboros mean, please?

[shawnette]

NO no no no no!!!


(No. Uroboros is 96 COE and not compatible with Effetre. Uroboros is an American made brand of glass. It's compatible with System 96 and furnace glass in the 96 range.)

[ccaronn]

Ok, thank you!! Can I use it alone on my hothead?

[shawnette]

Absolutely! I LOVE Uroboros!! In my opinion, of all the soft glass lines, their clear and black are the best and they don't cost $8 gazillion.

[shawnette]

If you have any commercial frit blends, most of them are compatible with Uroboros, as most of them are 96 furnace blends. (Unless they specify that they're 104).

[ccaronn]

Big help, thanks, Shawnette!

[Mina]

I've used 104 clear uroboro and love it!!

[Speedslug]

You will want to be diligent about keeping different coe glasses separated in your 'library' of glass storage.

It is VERY disappointing to make something really pretty with a lot of work (sometimes hours) in only to find a pile of dust in the kiln once it cools.

The Coefficient Of Expansion is only one of the technical descriptions of a glass but it is one of the first ones lampworkers learn and it is supposed to give an indication of how much the glass expands when it gets heated up to melting temperatures which is then the an indication of how much it contracts as it cools back to room temperature.

Even some glass in the same "COE" grouping can still have different rates of size changes and or different rates of cooling and that can cause cracking if not resulting in total breaking apart as it changes temperature.

As we said at the start; "Welcome to the Addiction".

There are lots of details.
Fortunately you now have decades of experience in the older threads here in this forum and others to search from as well as several kind souls willing to save you 'some' of pain of tracking it all down.

When I started, back in my lurking days, I would open the Tips, Techniques, and Questions section in the library and begin reading the first thread and browse through all the questions that I didn't (think) I already knew about.

Some of them talked about glass manufactures that are out of business and a lot of them were about glass that has had the chemistry changed because of the problems folks were having. So not all of what you can find applies today. And even when a glass maker tries to keep everything the same for every batch of glass they make some batches will have slightly different characteristics from the batch just before it and or the batch made 3 years earlier.


Keep asking questions and remember to play in the fire.
It's much more rewarding than playing in the freeway.

[AnArtistontheInside]

I love the Uroboro 104 clear as well.

[ccaronn]

😆, more great advice, Phil, thank you!

[Swirleigh]

I recently bought a couple rods of the Uroboros 104 clear, tried it and LOVE it! It is not at all shocky, and I haven't' noticed any scum problems.

I've been trying to find an alternative to expensive but wonderful, Zephyr. It is the best, but I'm thinking I really like the Uroboros and will be buying more.

[Gila]

Uroboros has some 90 coe glass too. Fun to tour their factory in Portland if you have the opportunity.
Great colors too; like Rootbeer!