unknownWed Feb 08, 2012 4:15 pm
Hi All,
So I am nearing the end of my college career, and plan on starting on my ski building after I have a real job.
In the meantime I want to start a thread about sustainable/renewable materials. I'll be posting an article of sorts on my findings about renewable materials this semester, and also companies that have sustainable practices in place.
In the mean time I thought I would start a threat that had some material substitutes, and links to suppliers for them
Epoxies: http://www.entropyresins.com/
Basalt Fiber: http://www.sudaglass.com/fabrics.html
Sidewalls: http://www.blacklocustlumber.com/
Metal Edges and Ptex Base?
Soybean Topsheets. Do not have supplier yet.
Rubber Substitutes for tip/tail and on top of edges?
I was thinking that there will be a substitute material for rubber on the tip/tail and edges, but as for metal edges and ptex base, the closest I have come up with is recycling edge and ptex (curb recycling that is).
Sourcing metal edges domestically would be ideal, but I cannot find an edge supplier in the U.S.
Core Materials: no brainer, use local lumber mills that plant trees, if they do not plant trees maybe make a donation to a company that plants trees for the wood you use.
unknownWed Feb 08, 2012 6:01 pm
There has been a ton of discussions of this topic on here for years, but never a collecting point with every thing, so I like this.
Bamboo, although not locally sourced at all typically, is at least ridiculously sustainable for cores.
I have been saving up scrap ptex pieces for a couple of years now with a crazy idea of grinding it all up into a powder, and melting it into a sheet of ugly mess that might be usable.
unknownWed Feb 08, 2012 6:17 pm
that could make a cool base, unless it becomes a mucky brown/black color
unknownWed Feb 08, 2012 8:38 pm
I've looked into getting edges locally or even made in the US, but out side of CDW I haven't found anything. Thought I had a lead locally but it turned out that it would be too expensive and honestly the guy would be trying to break into a market that is sewn up. Unless he had a guaranteed amount to make it wasn't worth the while to make a few hundred feet of edges a year.
I like the locust wood. I'll have to look into it. IPE seems off the charts in hardness.
unknownThu Feb 09, 2012 2:26 pm
Hey guys, I have not posted much on here as I mostly read and search. Somthing I think most should do, instead of ask questions that have been already answered 100 times in other places. Anywho, I Just looked into the Basalt fabric as a possible fiberglass replacement.
Triaxial -28.7 onces per sq. yard
Quadaxial - 19.9 Onces per square yard
both 13 micron roving.
So how is it possible that the quad which has a full extra layer runnin 90 degrees is lighter?
Has anybody considered using this stuff?
I know Mervins Lib tech and Gnu boards use this fabric, what weight I am not sure? If you where to use it, do you think the quad would give to much torsional stiffness though a light wieght fabric? And would you use triaxial considering it seem heavy (for a touring ski, splitboard at least)
Any others views would be great?
unknownThu Feb 09, 2012 3:10 pm
So, I called up the distributor and he told me the strands are smaller which make it lighter, though the micron rating stays the same.
Next question: has anybody used both triaxial and biaxial in the same build.
As in Biax above core/ triax below! Basalt or Glass!
unknownThu Feb 09, 2012 8:49 pm
Fibers running laterally will do nothing but add weight. Diagonal fibers add torsional stiffness, leave out the 90 deg fibers.
unknownSat Feb 11, 2012 10:20 pm
Who has flax details? Idris?