LDPE - Low Density
LLDPE - Linear Low
MDPE - Medium Density
HDPE - High Density
Polyethylene tubing ranges from flexible (LDPE) to semi-rigid (HDPE). It is a very economical material which is good for tubing. It is available in FDA and in industrial grades. It has good chemical resistance, and by adding UV stabilizers, it has good outdoor properties.
Available in natural (translucent white), stock and custom colors. For flexible water and air lines where barbed fittings are used, LLDPE is preferred because it has better resistance to environmental stress cracking.