Transparent blue glass tube, translucent, with a glossy surface that reflects light elegantly, made of high-grade flame-resistant borosilicate glass (COE 3.3). It is resistant to thermal shock and can withstand high heat from an oxygen-propane torch without cracking.
This hollow tube (tubing) has a diameter of 1.5 inches, making it easy to blow, shape, or pull into a taper. It is suitable for functional glass art, large jewelry pieces, and modern design lamps.
Main Chemical Components
- SiO₂ (Silica): 80% ±0.5
- B₂O₃ (Boron Trioxide): 13% ±0.2
- Al₂O₃ (Aluminum Oxide): 2.4% ±0.2
- Na₂O + K₂O: 4.3% ±0.2