Page 18 - Helly Hansen Catalogue

TECH CLINIC
HELLY HANSEN WORKWEAR 2022
HELLY TECH®

WATERPROOF. BREATHABLE.

GUARANTEED.

Helly Tech® is the waterproof and breathable outer layer between you and the elements. Its unique
membrane stops water molecules going in, but lets moisture molecules escape. Keeping you dry from
the outside and comfortable on the inside.

HOW HELLY TECH WORKS
®
1 1. DWR treated outer fabric is windproof and
HOW HELLY TECH WORKS
water-repellent
1 DWR treated outer fabric is windproof and water-repellent
2. Waterproof and breathable membrane or coating
2 2 Waterproof and breathable membrane or coating
3. Highly breathable inner fabric, mesh or lining
3
Highly breathable inner fabric, mesh or lining
3

Helly Tech® is constructed with Polymer Polyurethane (PU )
based membranes and coating technologies. The PU membrane
DWR TREATED
WATER REPELLENT waterproofness and breathable qualities. Helly Tech® is made either
gives softness and stretch to the fabric, while the coating allows
with Hydrophilic barrier membranes or Micro-porous membranes,
depending on the end-use purpose of the fabric.
OUTER FABRIC

The Hydrophilic barrier works on an osmotic principle, keeping salts from
entering and blocking the pores. The Micro-porous PU membranes are
hydrophobic- “water hating” polymers. This membrane construction is
WATERPROOF AND responsible for the waterproofness of Helly Tech®, making the pores up
BREATHABLE
to 20.000 times smaller than water droplets, while allowing breathability
MEMBRANE since the pores are up to 700 times larger than a water vapor molecule,
allowing the evaporation of sweat and heat.

Helly Tech® is actually more than just a fabric – it is a combination of
a DWR-treated outer fabric, a highly breathable and waterproof
membrane, fully sealed seams and often a highly breathable
inner fabric, mesh or lining.
The seams of the products are taped over with
a waterproof ribbon and glue, preventing
FOR MAXIMUM
WATERPROOFNESS any water from entering the small
gaps between the stitches of the
seams.

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