A ski is made up of: 1. Top. Polyamide polymer that has a relatively low glass transition temperature and resists chipping.
A ski is made up of:
1. Top. Polyamide polymer that has a relatively low glass transition temperature and resists chipping.
2. Torque box wrap. Composites reinforced with glass, aramid or carbon fibers. Various fabrics and reinforcing fillers are used to make possible the flex and decoration characteristics of a ski.
3. Center. Foams, vertical wood laminates, foam and wood laminates, honeycomb structures and other materials. Commonly used woods include spruce, bamboo, balsa wood, and birch.
4. Vibration absorption zone. Rubber is normally used.
5. Basis. Ultra-high molecular weight polyethylene is used for its low coefficient of friction and resistance to abrasion.
6. Borders. Heat treated carbon steel to 48 HRC hardness. It facilitates turning by "cutting" the snow.
7. Layers of reinforcement. Fiber reinforced composites, usually fiberglass. Various fabrics and reinforcing loads to provide longitudinal stiffness.
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