borosilicate

Pyrex(TM) used to be really tough low-expansion borosilicate glass, or perhaps properly tempered soda-lime glass, truly great stuff.

If you want borosilicate glass, then you need to to confirm the composition some other way.

The majority of borosilicate flameworking artists are independent and Facebook and Instagram are important to most people's marketing, if not sales.

Should the core melt through to that, it turns the sand to borosilicate glass which kills neutrons and stops the reaction.

The company set up the brand to promote a specific product(borosilicate glass cookware) After many years of this specific promotion, to the point the pyrex was interchangeable with borosilicate glass in customers minds.

At least I learned how to tell them apart (soda-lime has a blueish color, and borosilicate is clear).

That brand stopped being made of borosilicate glass resulting in a product that looked exactly the same but with distinctly different mechanical properties.

OXO sells borosilicate glass bakeware if you're looking for an alternative in America.

All western reactors (and all of those in Japan) have a pool of borosilicate sand underneath the reactor as just such a final safeguard.

For instance I found that some alumino-borosilicate glass has densities that can reach above 2.5 g/cm³.

I have no idea if you'd make cookware from that, but it's also a borosilicate glass...

They also have glass air fryers now (borosilicate glass, quite durable).

See 16m11 of the video for advice if you want borosilicate glass: in Europe, it is all borosilicate; in US, import it yourself, look for "Made in France", or use another manufacturer (e.g., Oxo names the glass they use).

Borosilicate glass is much more resistant to chemicals and shocks than ordinary glass, which is why it is used in glassware for laboratories and in also in the better cooking vessels.