Glossary of Terms

Term Definition
Chlorinated Polyethylene (CPE)

Chlorinated Polyethylene is an inexpensive variation of polyethylene having a chlorine content from 34 to 44%. It is a waterproof material.

High-Density Polyethylene (HPDE) High-Density Polyethylene is a thermoplastic polymer made from petroleum. Known for its outstanding tensile strength and large strength-to-density ratio, HDPE plastic has a high-impact resistance and melting point. It is a waterproof material.
Low-Density Polyethylene (LDPE) Low-Density Polyethylene is a soft, flexible, lightweight plastic material. It has good chemical and impact resistance and is easy to fabricate and form. It is a waterproof material.
Microporous A microporous material is a material containing pores with diameters less than 2 nm. The material is waterproof and breathable. 
Polyethylene (PE) Polyethylene is a tough, light, flexible synthetic resin made by polymerizing ethylene. It is a waterproof material.
Polypropylene (PP) Polypropylene is defined as a polymerized propylene that is very light, highly resistant, thermoplastic resin used to make coatings, plastic pipe, packaging material, fibers for clothing fabrics, etc. It is a breathable material but it is not waterproof.
Polyvinyl Chloride (PVC) Polyvinyl Chloride is a tough chemically resistant synthetic resin made by polymerizing vinyl chloride. It is a waterproof material.
Spunbond Meltblown Spunbond (SMS) Spunbond Meltblown Spunbond, commonly known as SMS is a tri laminate non woven fabric. It is made up of a top layer of spunbond polypropylene, a middle layer of meltblown polypropylene and a bottom layer of spunbond polypropylene. The material is breathable and water resistant.