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 Post subject: Re: RCA 621TS Restoration
PostPosted: Apr Sat 15, 2017 2:01 am 
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Location: Waxahachie Texas
Today I applied 2 light coats of Mohawk #M101-0229 Brown Mahogany Toner. Then 2 light coats of Mohawk #M102-8000 E-Z Vinyl Sealer which is a 13 oz. aerosol can. I use the aerosol can because it is easier at this stage. After the side and bottom bands and all the trim is painted, then I'll use my sprayer and spray on 2 final coats of the E-Z Vinyl Sealer.

I kept thinking that I got the toner on a little too "heavy" thus the finish is too dark. But when I compared it to the original pictures, the color and tone is pretty close! Of course when I add the side bands and bottom trim, which are very dark, that might make the "field" appear a little lighter. We'll see. On the top hatch I did a bit of a sunburst and left it a little lighter because I wanted to show some grain.

Here are some pictures of the cabinet side-by-side for comparison taken with basically the same light and in the same room. I included a picture of the hatch too.


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 Post subject: Re: RCA 621TS Restoration
PostPosted: Apr Mon 17, 2017 2:43 am 
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Location: Wyoming, Michigan
Attachment:
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A little late but I happened to notice the golden throat and eyewitness stickers on the back of my TA-169 from 1950. They are not printed on foil but just brown gold and white ink on paper. Exact same width and height as the 621 foils. I knew I had seen them somewhere.


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 Post subject: Re: RCA 621TS Restoration
PostPosted: Apr Thu 20, 2017 12:53 am 
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Location: Waxahachie Texas
Yesterday and today have been spent on applying the sealer coats along with the initial clear top coats. Hopefully tonight I can apply the decals and continue on with the top coats.

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 Post subject: Re: RCA 621TS Restoration
PostPosted: Apr Thu 20, 2017 3:50 am 
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Location: Waxahachie Texas
I shot 5 coats of Mohawk DuraCoat Pre-Catalyzed Semi-Gloss 60 Sheen Lacquer #M614-24607 thinned 20% with Mohawk Lacquer Reducer 2255.

I waited about 10 minutes between coats.

Later on tonight I did a little wet sanding to see how things are turning out. I used 800 grit wet sandpaper dipped in water and Dawn dish washing soap.

I wrapped the sandpaper around a hard balsa block and did a little sanding on the hatch.

Lots more sanding on the whole cabinet before the next coats. Of course after sanding, I'll put on the decals and continue on with more coats.


Attachments:
File comment: Here is how it looks when it is sanded a little bit. Notice how "rough" the surface is and how the sanding starts to "level" the finish.
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File comment: Here is the same spot after a few more minutes of sanding. Notice how it is nearly all the same sheen? The finish is "leveled" and ready for the next coats.
100_6582a.JPG
100_6582a.JPG [ 95.61 KiB | Viewed 1998 times ]

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 Post subject: Re: RCA 621TS Restoration
PostPosted: Apr Thu 20, 2017 5:29 pm 
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Location: Wyoming, Michigan
The un-level surface is known as "orange peel", for fairly obvious reasons. After 3 or 4 coats and wet sanding to the above lustre, hand polishing is my favorire step of all. Let us know what product you choose for that step.


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 Post subject: Re: RCA 621TS Restoration
PostPosted: Apr Fri 21, 2017 3:53 am 
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Location: Martha's Vineyard, Mass.
Wait a bit before wet sanding lacquer. I usually do three days minimum. 8)

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 Post subject: Re: RCA 621TS Restoration
PostPosted: Apr Fri 21, 2017 4:25 am 
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I let it sit overnight. It's ready for the decals.

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 Post subject: Re: RCA 621TS Restoration
PostPosted: Apr Fri 21, 2017 1:47 pm 
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Location: Wyoming, Michigan
Unless you already know how your decals stand up to your lacquer, and if you have a spare decal, do a practice run on practice wood. Some lacquers are pretty harsh and could melt/dissolve the decal. Especially if you are thinning it with acetone. Many (most?) lacquer thinners are acetone based.


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 Post subject: Re: RCA 621TS Restoration
PostPosted: Apr Fri 21, 2017 3:11 pm 
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WeekendHacker wrote:
Unless you already know how your decals stand up to your lacquer, and if you have a spare decal, do a practice run on practice wood. Some lacquers are pretty harsh and could melt/dissolve the decal. Especially if you are thinning it with acetone. Many (most?) lacquer thinners are acetone based.


Thanks for the heads up.

I've used RD decals before with my Mohawk products and reducer with no problems.

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 Post subject: Re: RCA 621TS Restoration
PostPosted: Apr Fri 21, 2017 5:00 pm 
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Lightly dust spray lacquers over decals to start. Healy applications of lacquer can cause lifting and curling.

Mohawk lacquers work fine this way over decals. 8)

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 Post subject: Re: RCA 621TS Restoration
PostPosted: Apr Fri 21, 2017 5:11 pm 
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Location: San Jose, CA USA
I prefer putting decals down over unsanded finish. If the finish has been dulled, this dulling sometimes shows through where the decal is. The reason is because the adhesive used on water-slide decals isn't index matched very well to the finish, so roughness of the interface shows through. I've seen some others mention solving this problem by putting down decals on wet finish. I haven't tried that (seems too easy to mess up a decal that way).

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 Post subject: Re: RCA 621TS Restoration
PostPosted: Apr Fri 21, 2017 5:23 pm 
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M3-SRT8 wrote:
Lightly dust spray lacquers over decals to start. Healy applications of lacquer can cause lifting and curling.

Mohawk lacquers work fine this way over decals. 8)


Correct!

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 Post subject: Re: RCA 621TS Restoration
PostPosted: Apr Fri 21, 2017 5:26 pm 
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Tom Albrecht wrote:
I prefer putting decals down over unsanded finish. If the finish has been dulled, this dulling sometimes shows through where the decal is. The reason is because the adhesive used on water-slide decals isn't index matched very well to the finish, so roughness of the interface shows through. I've seen some others mention solving this problem by putting down decals on wet finish. I haven't tried that (seems too easy to mess up a decal that way).


Hmmm....I can't remember if I put decals down on sanded surfaces on my previous projects. I'm pretty sure that I did. But you do raise a good point.

I know I'm not going to put a decal down on a wet surface unless it is water to help position the decal. Maybe that's what they meant by "wet"?

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 Post subject: Re: RCA 621TS Restoration
PostPosted: Apr Sat 22, 2017 12:09 am 
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No, some people (not including me) actually put the decal down in wet finish. For example, they spray a coat, and while it's still very wet, put the decals down. I image quick hands and slower-drying finish are necessary for success. Somehow you have to avoid depositing dust and particles while you do this. Sounds like something for a sprightly young person to try!

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 Post subject: Re: RCA 621TS Restoration
PostPosted: Apr Sat 22, 2017 1:42 am 
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If they're water slide decals how could you even do that at all? they would be wet with water which is incompatible with wet lacquer, or do you remove the decal from the backing prior?

I would totally screw that up for sure. :P


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 Post subject: Re: RCA 621TS Restoration
PostPosted: Apr Sat 22, 2017 4:00 am 
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I'll have to see if I can find the old threads where people were explaining this. I agree it would seem quite problematic, because you'd have to get the decal off the backing, and somehow get it dry before applying to wet varnish.

In doing a little search now I did not find any threads where this was discussed, but I did find lots of threads about applying decals on glossy surfaces (not sanded). People sand only after several coats of clearcoat have gone over the top of the decals.

Also lots of people recommending Microsol after applying decals to help them stick better, conform better to the surface, get air bubbles out, etc. I haven't tried that, but probably will next time I need to do this.

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 Post subject: Re: RCA 621TS Restoration
PostPosted: Apr Sat 22, 2017 10:17 pm 
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Too cold and humid today to shoot some clear. Tomorrow looks a lot better.

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 Post subject: Re: RCA 621TS Restoration
PostPosted: Apr Mon 24, 2017 2:23 am 
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Put on the decals today and the weather cooperated and I shot at least 10 more topcoats. 75 degrees and 35% humidity. The decals are almost buried. I'm sure after the lacquer gases off some there will be more showing.

Here are some pics of the decals and the final picture again with how it looked the first night I got it.


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 Post subject: Re: RCA 621TS Restoration
PostPosted: Apr Mon 24, 2017 3:06 am 
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Am I seeing a missing S on your "brightness" label?


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 Post subject: Re: RCA 621TS Restoration
PostPosted: Apr Mon 24, 2017 3:43 am 
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Location: Waxahachie Texas
WeekendHacker wrote:
Am I seeing a missing S on your "brightness" label?


Holy smokes, you're right. How the heck did that happen. Looks like I'm in for more sanding. Thanks for catching that.

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