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PostPosted: 19 Dec 2017, 11:52 
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On my Butterfly Selebes Jpen I need to sand the wings to make it comfortable to hold. It has 2 layers of red arylate. It’s the old arylate (arylate only) before arylate carbon became the standard.

I believe arylate is still a form of carbon, but that Arylate Carbon is a different composition. (Could be wrong).

Question, is it dangerous to sand the arylate from a hazardous material perspective? I already sanded some of it but then stopped after I realized I was going to have to sand a lot of it.

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PostPosted: 23 Dec 2017, 03:09 
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I had always heard arylate was a fancy name for fiberglass. If I was you I'd try not to inhale much of it, and perhaps wear some gloves while you sand it. I can't imagine much danger involved in sanding any table tennis blade regardless of composition though.

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PostPosted: 23 Dec 2017, 03:14 
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He's properly right. If there was and danger, knowing the ittf, it would be banned instantly :rofl: :lol:

With that said do be careful :)

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PostPosted: 23 Dec 2017, 04:05 
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Japsican wrote:
On my Butterfly Selebes Jpen I need to sand the wings to make it comfortable to hold. It has 2 layers of red arylate. It’s the old arylate (arylate only) before arylate carbon became the standard.

I believe arylate is still a form of carbon, but that Arylate Carbon is a different composition. (Could be wrong).

Question, is it dangerous to sand the arylate from a hazardous material perspective? I already sanded some of it but then stopped after I realized I was going to have to sand a lot of it.


Apparently, it's not. Probably more like Kevlar/Aramid, which is soft but very tough (which is why it's used in bulletproof vests while carbon is not). I haven't heard that it's dangerous to sand carbon or fiberglass (so aramid and arylate are probably the same) - the fibers don't get small enough to get into your lung sacks (like asbestos does) but you'd probably want to keep dust to a minimum and avoid breathing it in in any case (wear one of those fiber mask things and do it where you can easily clean up).

Think about how they make blades - the layers are glued up first, then the sandwich is clamped and then (probably) autoclaved to get the epoxy to set. THEN they cut the blades out of the sheet - most will use a CNC router, some (there's some huge factory in Scandinavia that OEMs for Stiga, Schildkrot, etc.) use a water jet cutter. I've not heard of anyone using a laser cutter - blades are probably too thick for it to be optimal. CNC routers produce a lot of dust, but they probably control it to some degree with a vacuum system. There's probably some hand-sanding (with a drum or belt sander) later on, once the handle is attached, too. If it really did produce toxic dust they wouldn't be working with it. I've heard that some of the composites they use on the B2 bomber does - something to do with beryllium or boron. Boron fibers are notorious for being dangerous, they can penetrate the skin and work their way into your bloodstream.

Iskandar


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