Hifax CA 721 GW



Hifax CA 721 GW is a flexible polypropylene resin used by our customers for waterproofing applications. It is manufactured using the LyondellBasell’ s proprietary Catalloy process technology. Hifax CA 721 GW membranes can be produced on slot die extruders, circular die (Blown film) extruders and on most of the calendering units.
 Hifax CA 721 GW is available in natural pellet form, and is UV light stabilised. Our customers use Hifax CA 721 GW to produce flexible membrane, fish pond liner, snow lagoon membrane, tunnel lining, water reservoir liner, floating cover, soil and waste sheet and flexible profiles.
Hifax CA 721 GW is not intended for medical and pharmaceutical applications.
Hifax CA 721 GW cannot be used in geomembranes application without prior approval from the seller.


Africa-Middle East, Asia-Pacific, Australia and New Zealand, Europe, South & Central America


SDS - Safety Data Sheet
PSB - Product Stewardship Bulletin

Product Data and Technical Information

Typical Properties

Melt Flow Rate (230 °C/2.16 kg) 0.6 g/10 min
Density (23 °C, Method A) 0.88 g/cm³
Flexural Modulus 90 MPa
Tensile Stress at Break 11 MPa
Tensile Stress at Yield 5 MPa
Tensile Strain at Break > 500 %
Charpy Impact Strength - Notched (23 °C) NB kJ/m²
Charpy Impact Strength - Notched (-20 °C) 110 kJ/m²
Charpy Impact Strength - Notched (-40 °C) 5 kJ/m²
Shore Hardness (Shore D, 15 sec) 30
Vicat Softening Temperature (A50) 60 °C
Heat Deflection Temperature B (0.45 MPa, Unannealed) 40 °C
DSC Melting Point 142 °C

Technical Data Sheet

Technical Data Sheet


Blown Film, Calendaring, Extrusion Flat-die




Soft Profile & Sheets, Soil & Waste Sheet, Waterproofing Liner

Prohibited Applications of Compounded Polyolefins:

The following applications and/or end uses are prohibited by LyondellBasell.  LyondellBasell will not solicit the sale of, or knowingly supply, product for use in the following applications:

FDA Class III medical devices, European Class III medical devices, Health Canada Class IV Medical Devices, applications involving permanent implantation into the body & life-sustaining medical applications