Low-density polyethylene (LDPE) dropper bottles have high impact strength, are nonwetting, and are more flexible than HDPE. LDPE (low-density polyethylene) has good chemical resistance, and high resistance to acids, alkalis, alcohols, and esters. Dropper bottles portion controlled amounts of liquid through a narrow opening.

High-density polyethylene (HDPE) dispensing bottles have good impact strength, are nonwetting, and resist stress cracking. HDPE is the most commonly used plastic lab container material and has high chemical resistance, high resistance to acids, alkalis, alcohols, and esters, and is less permeable than LDPE. Dispensing bottles have a push top that applies liquid to cloths, cotton balls, and swabs.

High-density polyethylene (HDPE) dropper bottles have good impact strength, are nonwetting, and resist stress cracking. HDPE is the most commonly used plastic lab container material and has high chemical resistance, high resistance to acids, alkalis, alcohols, and esters, and is less permeable than LDPE. Dropper bottles portion controlled amounts of liquid through a narrow opening. Excess liquid is returned to the bottle to prevent spills and waste.