PP (polypropylene) and PE (polyester) sample bags are
made from non-woven fabric which drains water and moisture.
Sometimes referred to as "tyvek" or "olefin" bags, these
durable bags reduce labor by providing fast drawstring closing. Polypropylene (PP) bags are not suitable for high temperature oven drying (maximum temperature 100-125°F). Polyester (PE) bags are suitable for higher temperature oven drying. |