Unsupported NTPEP

Unsupported NTPEP is a woven geotextile made up of polypropylene filaments. These filaments are woven to form a stable and durable network such that the filaments retain their relative position. It is nonbiodegradable and resistant to most soil chemicals, acids, and alkali with a pH range of 3 to 12.

English Values

All values provided are intended for rapid comparison purposes, only. Please refer to a specific product’s Product Data Sheet (PDS) and the disclaimers therein for a detailed listing of all characteristics, associated definitions and values needed for structure design, specification compliance review and product submittal purposes. Please Download PDS for all information transfer, printing and submittal purposes.

Property Test Method Units Staked Unsupported NTPEP Re-Roll Unsupported NTPEP


Grab Tensile
ASTM D4632 kN 0.550 x 0.550 0.550 x 0.550
ASTM D4632 % 15 x 15 15 x 15
UV Resistance
ASTM D4355 % @ 500 hrs 80 80
ASTM D4751 mm 0.60 0.60
ASTM D4491 sec-1 0.10 0.10
Flow Rate
ASTM D4491 Lpm/m2 325.6 325.6
Product Data Sheets

  • 1   Maximum Average Roll Value