Lab bottles commonly have a
variety of components, such as bodies, caps and closures, seals, straws,
and droppers that can be made of various materials.
- Borosilicate glass has
high chemical resistance, resists thermal expansion and shock, is
heat-resistant, and is commonly selected for many pharmaceutical
applications. It is the most common glass lab bottle type.
Glass is an inert brittle solid, heat-resistant, and
typically transparent. It does not allow transmission of gases or
vapors, and has solution-compatibility. Lab bottles come in a variety of
glass types, such as borosilicate and soda-lime. Colored or tinted
glass, such as amber, cobalt blue, or red, has ultraviolet (UV)
- Low-density polyethylene
(LDPE) is a thermoplastic that is lightweight, flexible,
durable, and impact resistant. LDPE lab bottles are squeezable, and
retract back to their original shape. It is more opaque, have less
chemical or solvent resistance, and more resistant to stress cracking
than high-density polyethylene (HDPE). LDPE bottles are commonly used in
dropper and wash bottle applications.