PET - Polyethylene Terephthalate
- Glass like clarity
- Durable
- Rigid
- Impact resistant
- Exceptional gas and moisture barrier properties
- Good alcohol & solvent barrier
- Not suitable generally for hot fill applications
HDPE - High Density Polyethylene
- Excellent moisture barrier
- Impact resistant
- Translucent
- Ideal for high-speed filling
- Well suited for demanding pharmaceutical specifications, water-based chemicals, toiletries & cosmetics, and certain food products
- Inadequate for products sensitive to oxidation or those products which contain solvents
PVC - Vinyl/Polyvinyl Chloride
- Transparent
- Rigid
- Excellent resistance to oxygen permeation and oils
- Good water barrier characteristics
- Commonly used in the toiletry and cosmetic market
LDPE - Low Density Polyethylene
- Squeezable and soft particularly suited for squeeze spray or dropper applications
- Virtually unbreakable and more resistant to stress cracking than HDPE
- Retains impact strength at very low temperatures
- Does not withstand product fill temperatures of more than 100ºF
- Poor barrier to gases or solvents
PP - Polypropylene
- Autoclavable
- Excellent contact clarity
- Can be used for hot fill opportunities beyond the limits of HDPE
- Excellent impact strength, stress crack resistance, and barrier characteristic
- Lightweight and strong
- Tends to become brittle at lower temperature ranges
PS - Polystyrene
- Rigid, glass like clarity
- Lightweight
- Able to withstand high fill temperatures up to 180° F
- Generally used for dry products, which are not extremely hygroscopic in nature
Other
Packages made with a resin other than the six listed above, or is made of more than one resin and used in a multilayer combination
Polycarbonate
- Transparent
- Impact resistant
- Rigid
- Outstanding dimensional stability
- Resistant to ultraviolet light
- High heat resistance
