EXACTLY IS A FERRARI® PRECONTRAINT
a woven base cloth of high-tenacity
with the fabric under constant
tension in both the warp and
weft directions throughout
the manufacturing process
layer of high-performance
surface polymers, thicker
over the surface of the yarns,
dirt-resistant surface treatment.
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.
textiles perform with an outstanding
stability when tensioned,
thanks to a very limited sinusoid
effect in the weft direction.
coated textiles exhibit a
high degree of sinusoid effect
in the weft direction.
ARE COMPLETELY STRAIGHT
Precontraint technology biaxial tension
ensures strict control of the weft yarn,
so yarns are completely straight.
textiles benefit from a weft yarn
direction which remains identical
from one batch to the other.
coated textiles exhibit serious
deformation of weft yarn which in
addition vary greatly from one batch
to the other.
and regularity of the yarn textiles
direction demonstrated by the
result in 3 times less elongation
in the weft direction than conventional
in the weft direction under
a 200 daN/m load over a
period of 100 hours.
Then residual elongation
GREATER COATING THICKNESS …
textiles 650 g/sqm
coated textiles 650
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
FOR AN OUTSTANDING LONGEVITY
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.
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.
HANGAR - 1982
STRENGTH AFTER 18 YEARS :
97% - Weft 84%
STRUCTURE - 1982
Saint Louis - Gabon Tropical zone Precontraint®