Search found 124 matches

by 24Dave
Fri Jan 15, 2016 9:16 am
Forum: Ski/Snowboard Design and Layup
Topic: History of laminated skis
Replies: 2
Views: 3286

Cool! If this year's boards made from Paulownia get dented up on the base, I think I'll laminate some 2mm hickory or maple on the bottom of the core like these earlier skis had.

they have some for sale at woodenskis.com
by 24Dave
Mon Dec 28, 2015 2:54 pm
Forum: Ski/Snowboard Design and Layup
Topic: Wood topsheet - best way to protect from the elements
Replies: 27
Views: 25334

http://www.eastwood.com/eastwood-s-2k-aerospray-high-gloss-clear.html This works fairly well for snowboards, $22 per can which can do two boards and is a one day use before it sets up in the can. I doubt anything works for skis like a nylon top sheet does. Like all auto paint clear coats the VOCs ar...
by 24Dave
Thu Dec 17, 2015 5:29 pm
Forum: Journals: Log Your Ski Building Progress
Topic: Divide Rides
Replies: 332
Views: 207059

hmmm, did some more reading. I'm thinking the innegra will help protect the base layer composite from impacts, but probably not much help in board breakage which appears to usually be compression failure on the top side. Could be best to just stack diamond shaped patches of unidirectional fiberglass...
by 24Dave
Mon Dec 14, 2015 3:23 pm
Forum: Journals: Log Your Ski Building Progress
Topic: Divide Rides
Replies: 332
Views: 207059

I'm guessing it beats fiberglass for beefing up a carbon laminate because it wets out better or doesn't absorb water, it dissipates impact better adding toughness to protect a carbon layer, because its lighter than fb, it has a higher ultimate breaking point. The thing that makes me skeptical is whe...
by 24Dave
Mon Dec 14, 2015 3:18 pm
Forum: Journals: Log Your Ski Building Progress
Topic: Divide Rides
Replies: 332
Views: 207059

I'm guessing it beats fiberglass for beefing up a carbon laminate because it wets out better or doesn't absorb water, it dissipates impact better adding toughness to protect a carbon layer, because its lighter than fb, it has a higher ultimate breaking point. The thing that makes me skeptical is whe...
by 24Dave
Fri Dec 11, 2015 4:06 pm
Forum: Journals: Log Your Ski Building Progress
Topic: Divide Rides
Replies: 332
Views: 207059

As I've started to make boards that bend more, I have been backing up thin carbon laminates with innegra as the outer layer in the high load areas instead of S2 glass for the weight savings. It is pretty hyped so far as adding toughness to carbon composites. Won't know anything until this year is we...
by 24Dave
Fri Dec 11, 2015 3:25 pm
Forum: Journals: Log Your Ski Building Progress
Topic: The next one will be better...
Replies: 26
Views: 19106

Hey probs are you going to laminate that core in two steps to keep the resin out of the honeycomb cells? There is a type of fiberglass/pp veil layer that keep resin from filling in the cells from the top for one step laminating but I haven't found it anywhere. see http://www.compositesworld.com/arti...
by 24Dave
Tue Nov 17, 2015 9:39 am
Forum: Ski/Snowboard Design and Layup
Topic: veneer top sheet cap
Replies: 4
Views: 5237

By masking tape do you mean the tape used to join sheets of veneer? I have never used it but you put the side with the veneer joint tape facing down. Otherwise don't use masking tape it absorbs resin and becomes part of the laminate. Flash tape can be used in a lay up and removes well without absorb...
by 24Dave
Fri Nov 06, 2015 8:55 am
Forum: Journals: Log Your Ski Building Progress
Topic: Through the thorns to the stars
Replies: 128
Views: 77099

a type of tape called flash tape or flash release tape (it is usually blue, sometimes green) for use in composite work seals the top of an insert off really well. The tape releases clean even after heat cure and doesn't let resin in at all. Put the tape on the insert then cut around it with a sharp ...
by 24Dave
Thu Oct 22, 2015 1:33 pm
Forum: Materials and Supplies
Topic: Where we can find spread tow carbon fiber in America?
Replies: 8
Views: 7622

thanks for chiming in, It looks like the huntsman brand is a good one, I'm going to try and find that one here in the US. I did learn that millipascals per second are the same unit as centipoise, good fun. Rhyme, It looks like the TAP has a viscosity of 450-550 depending on the hardener used. That's...
by 24Dave
Tue Oct 20, 2015 8:44 am
Forum: Materials and Supplies
Topic: Where we can find spread tow carbon fiber in America?
Replies: 8
Views: 7622

FYI on textreme: it presses great at higher psi's with even thicker low viscosity resins, but if you are vacuum bagging, you need a high viscosity resin and need to ensure that you have scraped and then rolled any excess resin out from under the laminate. It really doesn't let resin through the fabr...
by 24Dave
Mon Oct 19, 2015 8:43 am
Forum: Materials and Supplies
Topic: Canadian composite suppliers?
Replies: 10
Views: 7856

I imagine you are trying to shop in CA to avoid the conversion rate. That said I have found the best deals and awesome service from Soller Composites here in the US and their prices might overcome the exchange rate. Just wanted to plug them here for the great deals over the years.
by 24Dave
Mon Oct 19, 2015 7:57 am
Forum: Ski/Snowboard Design and Layup
Topic: Rubber up
Replies: 3
Views: 4124

Glissade snowboards used to do that. Their boards did seem damp, but I pretty much only rode them in pow and a 185cm at that so hard to say what the effect really was.
by 24Dave
Tue Sep 15, 2015 9:54 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: makeshift hotbox
Replies: 16
Views: 12453

third, I use the one inch thick pink rigid insulation panels from Home depot, but use 3 inch wood screws they pull the pieces together snug, hold pretty well and you can lift the box off and put it over your working surface. I just made the sides and a top piece. I just let the lid sit on top with s...