I don't know that snowboard are made from just plastic. away USD$ 60 to $1,200. Depend what you want if for. Rails, Freestyle, racing, Alpine.
The bulk of a snowboard, the core is the interior of the snowboard. It is typically comprised of laminated wood (beech or poplar, limited use of birch and bamboo). There have been continued experiments with aluminum and composite honeycomb, foam and plastics to add characteristics to the wood, such as dampening, and rebound, and to help reduce weight. The properties of the core directly affect important characteristics of the board, such as flexibility and weight.
The bottom of the board which is made of a porous, plastic material, that is saturated with a wax that creates a very quick smooth, hydrophobic surface. (P-Tex is a brand name that has become synonymous with ski and snowboard base material) Because the base of the board comprises the bulk of the board's interaction with the snow, it is important that it be as slippery with respect to the snow as possible. For this reason, different base waxes are available for different snow conditions. If the board is damaged, a new base pattern can be stone-ground into the board. If the base becomes significantly damaged, the board may become sluggish, or if the damage is deep enough, it may even weaken the core.
Extruded: The P-Tex is cut from a large sheet, or squeezed out of a machine much like play-doh. A low maintenance base, it is the least expensive and easy to repair. Extruded bases are smoother and less porous than other bases. They do not saturate with wax well, and tend to slide slower than other bases. But left unwaxed then do not lose much overall performance. Extruded P-Tex is also cheaper than sintered P-Tex.
Sintered: P-Tex base material is ground to powder then reformed with pressure and heat, and cut to shape. A sintered base is very porous and absorbs wax well. Sintered bases slide faster than extruded bases when waxed, but will be slower if unwaxed for a period. They are more expensive, and harder to repair.
Sintered bases may have graphite added to the mix. Graphite bases hold a lot of wax and are extremely fast. High-end racing and alpine, or freecarve, boards have graphite bases for maximum sliding speed. Additives may also include gallium and/or indium.
A strip of metal, tuned normally to just less than 90-degrees, that runs the length of either side of the board. This sharp edge is necessary to be able to produce enough friction to ride on ice, and the radius of the edge directly affects the radius of carving turns, and in turn the responsiveness of the board. Kinking, rusting, or general dulling of the edge will significantly hinder the ability for the edge to grip the snow, so it is important that this feature is maintained. However, many riders who spend a fair amount of their time grinding park rails, and especially handrails, will actually use a detuning stone or another method to intentionally dull their edges, either entirely or only in certain areas. This helps to avoid "catching" on any tiny burrs or other obstructions that may exist or be formed on rails, boxes, and other types of grind. Catching on a rail can, more than likely, result in a potentially serious crash, particularly should it occur on a handrail or more advanced rail set-up. In addition, it's relatively common for freestyle riders to "detune" the edges around the board's contact points. This practice can help to reduce the chances of the rider catching an edge in a choppy or rutted-out jump landing or similar situation. It is important to keep in mind that drastic edge detuning can be near-impossible to fully reverse and will significantly impede board control & the ability to hold an edge in harder-packed snow. One area where this can be quite detrimental is in a half-pipe, where well-sharpened edges are often crucially important for cutting through the hard, sometimes icy, walls.
Laminate: The snowboard's core is also sandwiched on the top and bottom by at least two layers of fiberglass. The fiberglass adds stiffness and torsional strength to the board. The fiberglass laminate may be either biaxial (fibers running the length of the board and more fibers 90 degrees perpendicular to it), triax (fibers running the length of the board with 45 degree fibers running across it), or quadax (a hybrid of the biax and triax). Some snowboards also add carbon and aramid (also known as Kevlar) stringers for even more strength. Furthermore, carbon/Kevlar may be added in a 'v' or 'x' shape under the bindings for extra response.
2007-01-19 15:30:11
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answer #2
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answered by ? 2
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TK Maxx dunno if where you are from but in England i saw some in there for around £20 real budget but with proper bindings, why dont you search outside rental shops at the end of the season, they always chuck out the knackered rentals
2007-01-19 03:03:04
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answer #4
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answered by jonny Atlantis 2
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