Re: [OT] material for hose and seals on desolder gun

Viton is a seal material with very food general chemical and temperature
resistance. I am not sure it is necessary - I suspect most of the options
you mention would work fine, but I just mention it as I know it is often
used in more demanding applications.

FR4 without copper is also often called G-10 (technically, G-10 may not
have the full flame retardant properties of FR4, I'm not sure).
McMaster-Carr carries it.

Sean


On Sun, Feb 2, 2025 at 8:41 PM madscientistatlarge <
[email protected]> wrote:

>
> I ask here because I suspect several people know this.  What's the best
> tubing/O-ring material for handling desoldering fumes for all the "common"
> fluxes used in electronics?  Natural butyl rubber, silicone rubber, FKM,
> etc?  All ready worn out trying to find fittings on aliexpress.  They
> really need to improve the search function.
>
> Still deciding whether to use NPT,BSP or metric plumbing.  Looks like BSP
> is the easiest to find.  To clarify, the desolder station provides the
> vacuum suction.  The compressed air part is easy.  Planning to use a
> venturi and a compressor for durability and because I could use an air
> compressor for lots and lots of other things!  Diaphragm pumps have a short
> life, especially with brushed motors but even with brushless motors.  I
> Really, Really wish the U.S. would go metric, the imperial system stinks in
> many, many ways.
>
> Yes, I"m working on my nearly universal solder/desolder station design.
> It'll even handle 400-500Khz irons, up to 300 W.  It will make it easy to
> use for inductive heating for the more complicated jobs.
>
> I Finally have most of my brain back after long covid.  My mind was gone
> for 3.5 years!  Actually the things I remember are a little scary, it was
> like I was fall down drunk!  It'll even handle 400-500Khz irons, up to 300
> W.  It will make it easy to use for inductive heating for the more
> complicated jobs.
>
> Also working on the isolation transformer project, just looking for blank
> (no copper) epoxy fiberglass board.  Found a good Canadian source for the
> Kapton, depending on what the trade war is doing.  Hoping customs will just
> ignore tariffs on orders <$100 as they have done here traditionally.
>
> I'll be using my Ancient tek digital scope!  Fun!  I should basically live
> in a lab, and I kind of do.
>
> And no, you do not need a magnetic material like iron to generate heat,
> any conductor will do as it induces eddy currents in the part to be
> heated.  There's a lot of false claims on the net saying you do need
> something ferromagnetic.  You can even heat water this way as long as it's
> not to pure to be conductive.  I've researched it in depth, including
> copper fittings being heated to a red heat to de-stress them after forming.
>
>
>
> "Human beings are the only creatures on earth that claim a god, and the
> only living thing that behaves like it hasn't got one.  Does the world
> belong to no one but you?"  The Lobster in "The rum diary"
>
>
> Sent with Proton Mail secure email.
>
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