Plastic Ski material/polymer

02VIPER ER

02VIPER ER

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Joined
Nov 10, 2008
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45
Location
WNY
Any Materials experts out there?
Does anyone know or have any information on what kind of polymer the yamaha plastic skis are made of?
I have to write a paper for my engineering materials class and me being the Snowmobile junkie that I am, it had to be something to do with my sled, lol.

I understand beggers cant be choosers but I'm lookin for the plastic type of the Viper skis, im not sure if the new ones are differnt type of plastic.
 
I agree

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Quote: Im going to assume it would be a hdpe. If you have an extra ski to test, you could try to figure it out using this link...


My opinion-
More than likely High Density Polyethylene. Outside chance it would be polypropylene, but unlikely. If it comes down to a coin toss, look up the glass transition temperatures of these two, and go with the lowest figure (lower Tg, more flexibility. Higher Tg, more brittle).

Besides...how the hell would your professor ever know the difference if even you being a snowmobile junkie doesn't?

Take it from an old broken-down chemist....your professor has more reports to read than time, and he (she?), is just looking for basic content in your report and is not going to spilt hairs.

Definately not PolyStyrene, so don't even mention that.

Let us know what your grade was.
 
I want to base my hypothesis of nothing but working with HDPE natural gas pipe in the summer, and how it has close to the same basic charachteristics (flex, scratchibility, hardness, sheen, and weight per unit volume as a yamaha ski.
 
Also, look at what material (poly propolene and polyethelene) is lowest in cost. We all know manufacturers have to cut costs somewhere, and I do not imagine seeing one spend extra money on ski materials..
 
Plastic Welding guides recommend to shave off a piece and light it up w/ a BIC,torch or whatever. The color that it burns at will reveal what material it is. Like.......blue flame = hdpe or orange = ptfe ......or whatever. Those colors are not correct....was just an example. The correct color flame for the material in question is needed for correct "welding" rod selection.
 
I called the guy from C&A pro skis and found out those skis are a UHMW Polyethylene
 
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