[R-390] Questions about using a Lacquer-Stik(r)

[jkharvie]

 Barry,Terrific news!  So very happy for you!  This has been a long haul, to make it just right.  Lets see some pictures :)
John (N3JKE)

    On Saturday, July 6, 2024, 1:35:00 PM EDT, Barry <n4buq at knology.net> wrote:   

 Tom,

I got the lacquer stick yesterday and had bought some plastic straight-edge scraper blades.  Amazing!  That works incredibly well.  I did the entire front panel in about an hour's worth of work (or less).  It looks very good and the blades made it so easy to get crisp edges.  Once it dries well, I can finish by buffing the entire panel and can finally move on to the knobs, escutcheon, and meter covers.

I have struggled with this on previous panels but nothing has looked as good as this.

Thanks again,
Barry - N4BUQ

> I've had some success using a plastic straight edge razor blade when working
> with the lacquer stick and trying to remove the excess.  Followed up by q-tips
> and a light buff with a microfiber towel.
> 
> Tom
> W3TA
> 
> -----Original Message-----
> From: r-390-bounces at mailman.qth.net <r-390-bounces at mailman.qth.net> On Behalf Of
> Barry
> Sent: Tuesday, July 2, 2024 5:25 PM
> To: jkharvie <jkharvie at verizon.net>
> Cc: R-390 Mailing List <r-390 at mailman.qth.net>
> Subject: Re: [R-390] Questions about using a Lacquer-Stik(r)
> 
> John,
> 
> This the one I ordered:
> 
> https://www.walmart.com/ip/Markal-Lacquer-stik-White-Fill-in-Paint-for-Engravi/34783848
> 
> Apparently it is "long lasting", "stays flexible", "will not rub off", etc.,
> etc.  I'm not sure if I can mimic an engraving in a spare aluminum piece but
> might try with a thin hack-saw.
> 
> Thanks for the reply,
> Barry - N4BUQ
> 
>> Barry,Given you have a lacquer-stik, i would make some test
>> applications of that material  on a piece of aluminum or steel to
>> first hand assess application, adhesion, how hard it cures, the time
>> needed, and specific chemical resistance, durability etc.I would also
>> indicate if you are going to be using the "putty", "crayon', or
>> "paint" type of laquer-stick.I looked up the name and received quite a
>> large number of products on the market.Engravers crayon is the only
>> type I have applied to my engraved panel that I over achieved with a
>> thermally-fused electrostatically applied paint.I am interested in the results.
>>  John N3JKE
>> 
>> Sent from AOL on Android
>> 
>>  On Tue, Jul 2, 2024 at 10:34, Barry Scott<72volkswagon at gmail.com> wrote:
>>  (Trying from the GMail page as the first attempt from my other email
>> account was undelivered.)
>> 
>> I'm going to attempt to use a Lacquer-Stik(r) to fill in the
>> engravings in my R390.  I've read where this product takes weeks/months to fully
>> cure.
>> Does that sound correct?  I don't mind waiting as I have a lot more
>> stuff to do for this radio but would just like to know what I'm getting into.
>> 
>> I'd also be interested in its durability.  I presume that once it
>> fully cures, it's probably fairly tough but I don't know.
>> 
>> I tried using acrylic craft paint for one small area of engravings.
>> That was a complete failure.  After letting it dry overnight, I
>> literally washed it off with soap and water and an old toothbrush!
>> Not good.  I think model car/aircraft paint might work but it might be
>> somewhat difficult to wipe clean after application and it could be
>> aggressive on the paint if there's much residue.
>> 
>> For prep, after wet-sanding the front panel down to the bare aluminum
>> and scraping out the engravings, I used Rust-Oleum self-etching
>> automotive primer followed with two light coats of Rust-Oleum satin
>> enamel.  I let that cure in the hot sun for a couple of hours for two
>> or three days in a row which seemed to have a good hardening effect
>> and reduced the out-gassing quite a bit.  Hopefully that will be durable.
>> 
>> Thanks for any comments,
>> Barry - N4BUQ
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