Duotone Magazin No.01 2019

DYNE EMA F I BRE S Dyneema ® Fiber is a synthetic chemical fiber based on polyethylene with an ultrahigh molar mass (Ultra-High-Molecular-Weight Polyethylene = UHMW-PE). Belonging to the group of HPPE (High Performance Polyethylene) fibers, Dyneema provides extremely high longitudinal strength due to its molecular alignment. Related to its mass, Dyneema is 40% stronger than Aramid, 60% stronger than carbon fiber and glass fiber, almost 5 times stronger than polyamide, polyester or polypropylene fiber and up to 15 times stronger than steel. Due to its high resilience, even a small diameter of Dyneema has an extremely high breaking load. The fiber is extremely light, provides great strength, and is resistant to stretching, abrasion, and UV light. Dyneema is used for the lines at Duotone. CORK Cork is harvested from the bark of cork oak trees grown exclusively in the harsh environs of the Mediterranean Sea. The bark of cork oaks shows a unique warp structure which is built of tiny cells. Each cell has the shape of a 14-sided polyhedron and is filled with a mixture of gas. The characteristics of cork result from its structure and the chemical setting of its extremely strong, flexible cell membrane which is waterproof and airtight. Additionally, cork is super lightweight, has outstanding elasticity and rebounding characteristics, and great durability. Duotone uses cork for the cork shock absorber in the heel area of all our Surfboards. It allows the boards to absorb shock like a PU board with minimal to no heel denting, thanks to the underlying reinforcements and the remarkable memory properties of cork. M A T E R I A L S T R U E 79 T R U E 78