WHAT EXACTLY IS A FERRARI® PRECONTRAINT COATED FABRIC?
a woven base cloth of high-tenacity polyester threads,
a coating with the fabric under constant tension in both the warp and weft directions throughout the manufacturing process (diagram below),
a layer of high-performance surface polymers, thicker over the surface of the yarns,
a dirt-resistant surface treatment.

  EXCLUSIVE FEATURES OF FERRARI® PRECONTRAINT :
   
EXCEPTIONAL DIMENSIONAL STABILITY
Ferrari® Precontraint technology ensures exceptional dimensional stability for fabrics, almost identical in warp and in weft. Elongation resistance in the weft direction is greater than with traditional coated textiles. This exclusive feature is very important when setting the tension of textiles.
 
Precontraint® textiles perform with an outstanding stability when tensioned, thanks to a very limited sinusoid effect in the weft direction.
Conventional coated textiles exhibit a high degree of sinusoid effect in the weft direction.
THREADS ARE COMPLETELY STRAIGHT
Ferrari® Precontraint technology biaxial tension ensures strict control of the weft yarn, so yarns are completely straight.
 
The Precontraint® textiles benefit from a weft yarn direction which remains identical from one batch to the other.
Conventional coated textiles exhibit serious deformation of weft yarn which in addition vary greatly from one batch to the other.
 
AN EXCELLENT RESISTANCE TO ELONGATION
The stability and regularity of the yarn textiles direction demonstrated by the Precontraint Ferrari® result in 3 times less elongation in the weft direction than conventional fabrics.
Elongation in the weft direction under a 200 daN/m load over a period of 100 hours.
Then residual elongation without load.
A GREATER COATING THICKNESS …
Precontraint Ferrari® textiles 650 g/sqm Traditional coated textiles 650 g/sqm
The Ferrari Precontraint® technique ensures a lighter weight fabric and also a greater thickness over the yarns. This technique provides a greater ease of handling and a longer life due to the added yarn protection from UV and other adverse environmental conditions.
… FOR AN OUTSTANDING LONGEVITY
The durability of coated fabrics very much depends on the thickness of the coating layer at the top of the yarns. Precontraint® membranes have a substantially increased life time thanks to the “useful” protective layer, the life span key to success for your projects.
Enka separate study on 3 sets of fabrics with different coating thickness over the top of the yarns. Exposed in naturel conditions during 10 years in Florida - USA.
AIRBUS HANGAR - 1982
Germany - Precontraint® 1302
TENSILE STRENGTH AFTER 18 YEARS :
Warp 97% - Weft 84%
EXHIBITION STRUCTURE - 1982
Port Saint Louis - Gabon Tropical zone Precontraint® 1302
TENSILE STRENGTH AFTER 18 YEARS :
Warp 86% - Weft 76%
WALKWAY AT THE "GARE DE LYON" STATION - 1989
Avignon - S. France - Precontraint® 392
TENSILE STRENGTH AFTER 17 YEARS :
Warp 90% - Weft 80%
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H.O.: : C-3, Nanddham Ind. Estate, Marol Maroshi Road, Andheri (E) Mumbai - 400 059. Tel. : 91 22 66969381. Fax : 91 22 66969384. mail@sujanimpex.com