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Subject: Re: [Homebrew_PCBs] Re: Components stick to tools

From: Stefan Trethan <stefan_trethan@...>
Date: 2011-10-28

The weight is the best indicator. You can also try CuCl etchant if you
have it, or ferric cloride. They will etch stainless but not titanium.
Sparks are white as you say.

ST



On Fri, Oct 28, 2011 at 6:26 AM, Charles Patton
<charles.r.patton@...> wrote:
> Well, after the discussion about titanium tweezers, I went to Ebay and
> bought a tweezers from this link:
>
> http://www.ebay.com/itm/6-5-Sharp-Point-Titanium-Jewelers-Tweezers-BCZ02-/360404280619?pt=LH_DefaultDomain_0&hash=item53e9c4e52b
>
> $10.90 including shipping (USA).  A good price, I think.  I got it
> today, and my components don't stick -- it is definitely anti-magnetic,
> and the grinder sparks are unlike any steel I've ever seen.  .  Touching
> it to a grinder generates sparks that are very fine and bright white
> hot.  It feels much lighter than what I would expect for standard steel
> tweezers (titanium is 57% the specific density of steel)  so it probably
> is titanium as advertised.   The points are sharp and well mated.  I
> look forward to testing it soon in action.
>
> If anyone has an easy, definitive test for titanium, I could possibly
> try it.
>
> I also ordered an "ESD" safe anti-magnetic tweezer from a China/Hong
> Kong source, but it won't be here for a week or two.  I'll report on it
> when it comes in.
>
> Anyway, the titanium tweezers above seems to be a good value.
>
>
> Regards,
> Charles R. Patton
>
>
>
>
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