Thought I'd share this just in case someone needs the info. I was talking to a guy at Crown Plastics today. The base material that they provide comes sanded on (1) side and flame treated on (2) sides. The bottom (side that touches the snow) of the base material is only flamed in order to absorb wax. I told him that my skis come out with some epoxy deposits on the base..........and that I finish them with a base wet-sander. He suggested that after I sand/grind the base material.........I would need to re-flame treat in order to get proper wax adhesion.
............so from now on I'm gonna flame treat after my sanding and before my first wax job.
FYI
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you can also get sanded/flamed both sides.
I have a roll like this.
It sucks in one way because epoxy actually bonds to it, and grinding those spots away takes more time,
however,
The base is already PRE FINISHED, so you dont have to spend an hour on the grinder going crazy with it, just do what you can to flatten it, so far they're riding well. Though, when I go to graphic bases they will be not sanded on the snow side.
I have a roll like this.
It sucks in one way because epoxy actually bonds to it, and grinding those spots away takes more time,
however,
The base is already PRE FINISHED, so you dont have to spend an hour on the grinder going crazy with it, just do what you can to flatten it, so far they're riding well. Though, when I go to graphic bases they will be not sanded on the snow side.
Doug
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If I understood him correctly.........he was saying that they flame treat AFTER they sand. The flame treating is what makes the microscopic amorphous regions (or wax-accepting regions) of the sintered base material capable of absorbing wax. He said that the base material that is only "flamed" (not-sanded) on the bottom is already finished and ready to accept wax.
The trouble comes when we sand our finished skis down in order to flatten the bases or remove excess epoxy. This (for lack of a better term) "ruins" the flame-job.
So, even if you have material that is sanded and flamed on both sides...............if you do any more sanding after it is out of the press...........it needs to be re-flamed.
Or...........we could just forget all this scientific crap, throw some wax on em..............and ski the damn things!
The trouble comes when we sand our finished skis down in order to flatten the bases or remove excess epoxy. This (for lack of a better term) "ruins" the flame-job.
So, even if you have material that is sanded and flamed on both sides...............if you do any more sanding after it is out of the press...........it needs to be re-flamed.
Or...........we could just forget all this scientific crap, throw some wax on em..............and ski the damn things!
