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: [email protected] <[email protected]> On Behalf Of Barry Sent: Tuesday, July 2, 2024 5:25 PM To: jkharvie <[email protected]> Cc: R-390 Mailing List <[email protected]> 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<[email protected]> 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 > ______________________________________________________________ > R-390 mailing list > Home: http://mailman.qth.net/mailman/listinfo/r-390 > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html > > ______________________________________________________________ > R-390 mailing list > Home: http://mailman.qth.net/mailman/listinfo/r-390 > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html ______________________________________________________________ R-390 mailing list Home: http://mailman.qth.net/mailman/listinfo/r-390 Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ R-390 mailing list Home: http://mailman.qth.net/mailman/listinfo/r-390 Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
