S SonicClang Part 4720981 coming soon! Nov 25, 2006 #21 Pyrex is simply a tempered glass, and "Pyrex" is a brand name. They do use tempered glass for lava lamps. But, with enough pressure anything will explode.
Pyrex is simply a tempered glass, and "Pyrex" is a brand name. They do use tempered glass for lava lamps. But, with enough pressure anything will explode.
