I've started my first cabinet refinish job, it's a DuMont Chatham! Let me give a disclaimer right up front- I have no wood working/refinishing experience at all. I did as much "internet reading" as I could before I started and this weekend while on a visit to the mother in law's home in the country I took the first steps. The cabinet was in pretty poor shape originally, I was not optimistic for a good looking outcome.
http://farm7.static.flickr.com/6153/6183171196_94e99eaab9.jpg
I used a chemical stripper with methyl chloride to remove the old finish. The instructions called for applying the stripper, letting it sit for 15 minutes, and then scrape it off with a flat blade putty knife. I found the best results for me was to let the stripper sit and then use a stiff brush to work the finish off and then wipe the "goo" off with a rag.
http://farm7.static.flickr.com/6160/6182649869_02bfa082e4.jpg
After I removed as much finish as I could using the stripper I went to work on the cabinet with sand paper. I used 80 grit first to remove whatever leftover finish there was after stripping. I moved to 150 after that to smooth out the now rough surface the 80 left. After the 150 I moved on to 320 to finish. One thing I have read is that I skipped some grits in the progression and I will pick up the intermediate grits before the next cabinet refinish.
http://farm7.static.flickr.com/6174/6182648881_78bb77c146.jpg
Now the cabinet is all stripped, repaired, and sanded. There was one section of the cabinet that I mistakenly blew right through the veneer with the 80 grit but I'll chalk that up to rookie learning experience.
Now on to the solicitation for advice. I was thinking of using CrystaLac Wood Grain Filler to fill the grain. From there instructions I understand that I should stain first. Some other grain fillers say that you should fill first. I'm wondering if any one here has used clear grain and can give advice? Should my steps be: rub stain - grain fill - brush lacquer sanding sealer - spray lacquer? Any help or tips greatly appreciated.

I use Constantine's wood filler for my radios. It is sold in a variety of tints, so I don't stain. I will mention that I have tried other wood fillers, both oil and water based, and none of them worked as well as the stuff Constantine's sells.

If it were my cabinet, I would start with filler, slopping on the stuff with the grain. When it gets a hazy finish, you can start to work with it. You use burlap to take it off, but what gets people is that they think you just wipe the filler off and that is that. You use the burlap to build up a cake of semi-dry wood filler onto it, and you use that cake to WORK the wood filler into the cabinet. I also use a kitchen scraper or credit card to strike some portions level as well.

After filling, sand again and seal. I use a couple of light coats of shellac (I lacquer and shellac with spray cans, no brushing) for this purpose. Now lacquer can be applied. If any areas require opaque toners, I mask off the cabinet and lacquer the opaque toner areas first. Then you can lacquer the whole cabinet with either clear toners, or a clear topcoat. Since you'll be grain filling, I recommend that you do some wet sanding/polishing with rottenstone to get a mirror finish when you're done.

Ditto above. I use Constantine's...

http://i268.photobucket.com/albums/jj7/300cSRT8_photos/RCA%20721TCS%20Resto/RCAVictor721TCSFinalPics001.jpg

As far as the tints go, do you always use a tint that matches the wood type or do you go with something darker to accent the grain? Since this is not a clear wood filler do you stain after you apply the filler so that it can be stained along with the wood?
I'll go with you're recommendations and pick some of this up as soon as I can.

I'm pretty sure the Dumont's veneer is walnut. Go with that tint for filler and you'll be fine.

I'd recommend using lacquer rather than poly for the overcoats. Lacquer is what they originally used. Plus, lacquer is easily reversible if your first attempt isn't perfect. Poly is hard to remove with anything but a belt sander.

Just my $0.02.

Phil Nelson

Ditto on the suggestions above. You might find my thread on restoring a Philco radio cabinet helpful: http://www.videokarma.org/showthread.php?t=247120

They do recommend you stain before the filler. Keep in mind that stain penetrates veneer much more than hard wood trim. That will leave the trim lighter and possibly splotchy. That's a big advantage of toner - it gives you a consistent color over different woods.

The only grits I use on wood are 220 and 400. 80 is too coarse for thin veneer. After stripping, I use stripper wash and steel wool. That generally removes all the stripper residue so there's not much sanding required.

Good luck.

I got the stain on yesterday. It is starting to look better.
http://farm7.static.flickr.com/6129/6190250189_b3cdb541c4.jpg
The area around the edge looks a bit splotchy but that's because it is going to painted black instead of stained.
The only part that did not come out so well is where I burned through the finish. That wood didn't take the stain at all.
http://farm7.static.flickr.com/6020/6190250945_1292b15599.jpg
I tried using a wood stain marker also to no avail. I think I'll sleep on it one more day and see if I can come up with something to darken that area.

maybe some wood fill tinted to match the stain sloped into the "burned through" area could hide it.

I don't know much about refinishing though so that may be a dumb idea for all I know.
Just thinking outloud.

Tom C.

Oooooooh, Dat's PURDY !

I tried using a wood stain marker also to no avail. I think I'll sleep on it one more day and see if I can come up with something to darken that area.

Try some brown toner lacquer sprayed into a container and apply with a small artists brush. You may need to build a couple layers to get the color right.

I suspect a lot of the black trim on radio and TV cabinets was originally hand painted after the main finish was sprayed. Sounds tedious, but a trained factory worker could put that trim on in seconds. Back in the day people used to hand paint sign and vehicle lettering, as well as freehand pin striping.

I painted the bezels over the past two days. Masking curves took about 100 pieces of masking tape but I think the end result came out looking pretty good.
http://farm7.static.flickr.com/6143/6196236815_93002fc4fc.jpg

I own an RA-103 in it's origional finish. It is definitely mahogany. The edges are painted a dark chocolate brown.

http://i268.photobucket.com/albums/jj7/300cSRT8_photos/DuMont%20RA-103%20Doghouse/DuMontRA-103Doghouse010.jpg

http://i268.photobucket.com/albums/jj7/300cSRT8_photos/DuMont%20RA-103%20Doghouse/DuMontRA-103Doghouse014.jpg

When I sand a cabinet after stripping, the roughest paper I use is 220 grit. 80 is way too agressive. That's why you burned through the veneer.

If that was an early RCA Victor cabinet, like that 721TCS I posted above, you would have burned right through it in about 5 passes.

Careful!:smoke:

Your painted edges look good. Did you use a dark choc. brown?

The cabinet looks a bit walnutty. Did you use a red mahogany stain? You should...

:yes:I painted the bezels over the past two days. Masking curves took about 100 pieces of masking tape but I think the end result came out looking pretty good.
http://farm7.static.flickr.com/6143/6196236815_93002fc4fc.jpg

I think it's looking very nice. Considering you not having any previous woodworking experience, you may be a natural at this. :yes:

Possibly they offered this set in a couple different colors? The original finish on this one appears way less red than the one M3-SRT8 has. Or possibly the camera and lighting are playing tricks with the color.

I've never seen a Chatham in anything but red mahogany. Try Minwax Red Mahogany Stain #225. Go VERY light passes to start. It's a good match for the DuMont factory tint.

The cabinet is redder than my photos show. I don't think it started off as red as M3-SRT8's cabinet, but that could just be because it was in pretty poor shape when I got it.
I used a paint called "antique dark walnut" for the bezel. It's a little more purple than chocolate brown. After letting it dry overnight I knocked it down with 0000 steel wool. It took the "just painted" shine off of it and made it much more even. I also put the first coat of grain filler on this morning. I took the advice of the old guy at the wood supply store and went with CrystaLac clear filler. I'm going to give it a very light sand with 320 grit tomorrow morning and put the next coat on. I'll post some progress pictures then.

Sand INTO THE GRAIN PORES. Very important to do this, or you'll remove the grain fill from the wood.

Depending on how well you leveled the grain fill with the surface of the wood, and how much excess is left on the wood, be prepared to use a lot of 320 grit sandpaper, as it will fill up fast.

Just keep on using fresh sandpaper, and work carefully...:smoke:

Sand INTO THE GRAIN PORES. Very important to do this, or you'll remove the grain fill from the wood.


Could you elaborate on "into the grain pores"? I'm not quite understanding what you mean. I was going to sand with the grain as light as I could to remove whatever filler was left on the surface. Is there some other technique that I should employ?

Yes. Wood grains are composed of exposed pores. They ususlly lie on the surface at an angle. When you drag a dry cloth on the surface WITH the grain, and AWAY from the pores, it doesn't catch on the surface. When you drag a cloth INTO the pores, the cloth catches. Sand INTO the pores.:smoke:

http://www.youtube.com/watch?v=ZQfm0nLXJ7Q

This is part one of three (kind of boring) videos on grain filling. But what is important with this series is that he will probably answer a lot of your questions, and most importantly, you get to see how how the pros do it.

Don't forget, you can save the old grain filler-when you scrape it off the cabinet, toss the excess back into the can.

http://www.youtube.com/watch?v=ZQfm0nLXJ7Q

This is part one of three (kind of boring) videos on grain filling. But what is important with this series is that he will probably answer a lot of your questions, and most importantly, you get to see how how the pros do it.

Don't forget, you can save the old grain filler-when you scrape it off the cabinet, toss the excess back into the can.

Wonderful link! Thank you so much. I applied grain filler on Saturday morning and it was a disaster. I did not use the method shown in the YouTube video. In the process of sanding off the grain filler residue with 320 I took slight amounts of stain off. The result was an uneven color. What I'm going to do now is sand the entire piece down as gently as I can to an even color then gain fill with the above method and re-stain. I think this will give me the result I'm looking for.

Here's my doghouse with it's original finish and original stand.
http://i249.photobucket.com/albums/gg227/pielock373/CIMG7537.jpg