What material is typically used for securing glass tubing to prevent air leaks?

Rubber stoppers are commonly used to secure glass tubing in various laboratory and industrial applications, particularly in settings involving wastewater operations or other scientific measurements. The material's flexibility allows it to create a tight seal around the glass, effectively preventing air leaks. This is especially important in experiments or processes where maintaining a stable internal pressure or preventing contamination is critical.

Rubber stoppers are designed to fit snugly into the openings of glassware and can accommodate different sizes and diameters, making them versatile for various setups. They also provide an easy way to insert or remove probes and other instruments without compromising the integrity of the system.

While other materials like plastic clips, silicone sealant, and metal clamps might also secure tubing, they often serve different purposes or have limitations when it comes to creating an airtight seal around glass. For instance, plastic clips might not provide the same level of sealing capability, while silicone sealant is typically used for more permanent fixtures rather than for easy access. Metal clamps, on the other hand, may be more suited for securing tubing in mechanical settings but may not be as effective for sealing against air leaks as rubber stoppers.