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mediablast a fiber-glass fork

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mediablast a fiber-glass fork

Old 04-03-09, 11:54 AM
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alfredmaul
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mediablast a fiber-glass fork

Hi, I'm sorry if this is redundant, but...

I've looked in the forums and still can't find a definitive answer--will walnutshells or plasticbeads ruin the structural integrity/safety of a fiberglass bicycle fork?

Is there a medium that would not?

I appreciate your response!
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Old 04-03-09, 12:17 PM
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First, there are no "fiberglass" bicycle forks I've ever heard of. Non-metal forks are carbon fiber in a resin matrix.

Kestrel, a well known maker of carbon forks is very explicit: "Do not sandblast, beadblast or blast with any other media"

If you want to paint their forks they recommend light hand sanding to scuff the top coat only. They further caution against any paint removers that will remove polyurethane or urethane based paints as it will damage the epoxy matrix.

Short answer: Don't blast the fork with ANYTHING.
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Old 04-03-09, 01:08 PM
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fiberglass and carbon fiber, both very similar construction methods, both require same kind of care.
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Old 04-03-09, 05:59 PM
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Originally Posted by AEO View Post
fiberglass and carbon fiber, both very similar construction methods, both require same kind of care.
Very true but the strength and stiffness difference between fiber glass and carbon is huge.
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Old 04-03-09, 06:38 PM
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well you pretty much have your answer.

but yea sand/bead blasting expensive stuff is a bad idea. ive seen ppl sandblast car wheels and it pits them and they break.

also ive read many warranties that say you void it if you sand/bead blast it. specially with heat treated stuff
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Old 04-03-09, 06:44 PM
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Originally Posted by HillRider View Post
First, there are no "fiberglass" bicycle forks I've ever heard of. Non-metal forks are carbon fiber in a resin matrix.

Kestrel, a well known maker of carbon forks is very explicit: "Do not sandblast, beadblast or blast with any other media"

If you want to paint their forks they recommend light hand sanding to scuff the top coat only. They further caution against any paint removers that will remove polyurethane or urethane based paints as it will damage the epoxy matrix.

Short answer: Don't blast the fork with ANYTHING.

+1 to all of this.
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Old 04-04-09, 04:01 PM
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Thanks everyone!
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