ARCHITEC 400™ is a 400gsm high density polyethylene (HDPE) fabric with an excellent weight to strength ratio. It has very good tensile strength and is extremely resistant to tearing.

ARCHITEC 400™ is an extremely strong Knitted Shadecloth that has been designed for very large Commercial Tension Membrane Structures and Shadesails.

By the very size and nature of large tension structures, ARCHITEC 400™ offers the strongest fabric available in the market, and it has the best weight to strength ratio over competitor fabrics.

ARCHITEC 400™ offers up 96.5 % U.V. protection factors and incorporates the very latest in Ultra Violet stabilisers from Ciba Speciality Products that provide for the extended UV life of the fabric, and allows Polyfab Australia to provide a twelve year (12 yr) UV Warranty (conditions apply).

The best warranty in the industry.

Most of our competitors can only offer UV protection factors  ‘up to 90%’.

The new UV stabilizers also provide improved colour consistency and colour fastness.

  • ARCHITEC 400™ contains NO FLAT TAPES.
  • ARCHITEC 400™ incorporates our new oval shaped OVALON monofilament yarn that provides excellent strength,  high UV protection factors and minimum stretch in both the weft and warp direction of the stitch pattern. Once installed tightly and firmly, it will maintain its tension.

The fabric’s performance is only as good as the quality of the design, engineering and support structures used to hold the fabric under the tension that it deserves.

  • ARCHITEC 400™ has been pre-stented to reduce shrinkage, and to improve the stability of the fabric.

This process improves the workability of the fabric during the fabrication and installation of the shadesail or shade structure.

  • ARCHITEC 400™, is available in six (6) popular fashion colours of:


  • Porcelain
  • Sandstone
  • Aquamarine
  • Navy Blue
  • Slate Grey
  • Midnight Green.

Technical Specifications (from Polyfab Australia Pty Ltd):

Testing Procedure WARP WEFT
Breaking Force – N/50mm 1025 1897
Elongation at Break as a % 89.1 92.6
Tear Resistance 342 N 330N
Bursting Pressure – Mean kPa 4500
Bursting Force – Mean N 2862

1800 Shade U uses the materials best suited for each job.