PET
PET is the material of choice for stretch blow molded containers. PET offers glass like clarity, excellent oxygen and moisture barriers and is the sustainable choice for recycling. Most food containers use PET due to its superior barrier qualities. PET containers can be made from FDA grade Post Consumer Recycled material (PCR), commonly mixed at a 25% ratio with virgin material.
PP
PP is the material of choice for injection molded containers like Pop Tops, Push and Turn Vials, Calyx Vials and jars. PP is cloudy in appearance in its natural state, offers poor oxygen barrier, and is not commonly recycled. PP is inexpensive to produce. PP containers typically have a slight taper to aid in removing from the mold.
HDPE
HDPE is the material of choice for large blow molded containers. HDPE is cloudy in appearance in its natural state and offers a poor oxygen barrier. HDPE is commonly used for milk jugs and as such is prevalent in the waste stream. HDPE containers can be produced with PCR and renewable sources such as sugar cane.