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Old 12-06-2013, 05:37 PM   #1 (permalink)
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Default Sintered vs Extruded @ Low Temp

At lower temperatures (Below -20c/-4F) would extruded bases perform better than a sintered base if both are waxed with All temp wax rated for (0 to -15C). Since the extruded base is not textured as much as the sintered the wax would wear off and thus have a harder and less textured base to compensate for the hard crystallized snow particles.
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Old 12-06-2013, 07:06 PM   #2 (permalink)
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Default extruded vs sintered its COLD

Quote:
Originally Posted by SmellyTuna View Post
At lower temperatures (Below -20c/-4F) would extruded bases perform better than a sintered base if both are waxed with All temp wax rated for (0 to -15C). Since the extruded base is not textured as much as the sintered the wax would wear off and thus have a harder and less textured base to compensate for the hard crystallized snow particles.
1. Wax wear is based on the wax, regardless of boards composition.
2. Sintered base allows for more wax absorption and thus will perform longer and better in any temperature.
Your Quote on "base to compensate as to hard snow particles".

Snow at extreme temps are pointy, jagged sticking to base, so coefficient of friction of the base which ever is lower would perform better. = sintered.

Hope this helps...
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Old 12-06-2013, 07:21 PM   #3 (permalink)
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Default

Hey there's two threads on very similar topics here

get an NS Proto, problem solved.

back on topic, here is some info from Sierra Snowboards, based on this I think that Sintered base when waxed > Extruded base when waxed, and that this applies to all conditions, while unwaxed sintered base < unwaxed extruded base

Extruded Bases:


The facts: Extruded bases are made with polyethylene pellets that are melted down under extreme heat. Once melted, the pellets are forced together under pressure using a machine that measures the correct base thickness. The result is one solid, completely smooth piece of polyethylene. Extruded snowboard bases tend to be more durable and cheaper to make than sintered bases. Extruded bases are not porous and do not hold wax as well as sintered snowboard bases. As a result, an extruded base will be much slower than a properly maintained, and waxed, sintered base. On the other hand, an extruded base will be much faster than an un-waxed sintered base.


Pros: Cheaper, more durable
Cons: Slower, does not hold wax


Sintered Bases:


The Facts: Sintered snowboard bases are made with the same polyethylene pellets as extruded bases. However, instead of melting the pellets, the pellets are forced together under extremely high pressure. The result is a single piece of connected pellets with tiny pores across the entire length. Sintered bases are ideal for wax because the pores between the pressure-fused pellets hold the wax in place and help it stick to the base of the snowboard. When waxed regularly, sintered bases are much faster than extruded bases. Sintered bases can also be harder to repair than extruded bases.


Pros: Faster, holds wax better
Cons: More expensive, harder to repair

Last edited by Lamps; 12-06-2013 at 07:24 PM.
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