Page 1 of 2 12 LastLast
Results 1 to 10 of 19

Thread: Mahogany Grain Filler?

  1. #1

    Default Mahogany Grain Filler?

    What have you found that does a good job filling grain on Mahogany? I am a ways off from actually finishing my Ukulele but I have some Mahogany laying around and thought I would experiment a little.

    StewMac sells ColorTone Waterbase Grain Filler. Has anyone tried this


    Thanks

  2. #2
    Join Date
    Oct 2014
    Location
    Little River, California
    Posts
    1,926

    Default

    Yes, I have used it and I like it. It works... sorta. It will fill most of the grain but not completely. The way I look at it is it is a good start... Easy and forgiving to apply. Non-toxic. Easy clean-up. Is it the silver bullet to grain filling. Unfortunately no. I'm still looking for the perfect grain filler.

    There is a thread I started on this stuff a few years back when it first came out. You could do a search.

  3. #3

    Default

    Quote Originally Posted by sequoia View Post
    Yes, I have used it and I like it. It works... sorta. It will fill most of the grain but not completely. The way I look at it is it is a good start... Easy and forgiving to apply. Non-toxic. Easy clean-up. Is it the silver bullet to grain filling. Unfortunately no. I'm still looking for the perfect grain filler.

    There is a thread I started on this stuff a few years back when it first came out. You could do a search.
    Thanks I will look for it

  4. #4

    Default

    So far I have hated every water based grain filler I have tried. They take a million coats to fill large grained woods. They turn Koa green, a disgusting green at that. I have the best luck with Zpoxy. It's very forgiving on the mixing volumes as seems to work well for me. Comes in two tones, I like the lighter tone but it can be hard to find. I have also used CA and it works well too but I have had adhesion issues if it isn't sanded off everything but pores.

    I have heard of shooting several coats of lacquer then doing the pore fill with the water based. I did that when I missed some pores on and area and that seemd to work ok.
    Last edited by Michael Smith; 12-14-2018 at 07:01 PM.
    Michael Smith
    Goat Rock Ukulele
    www.goatrockukulele.com

  5. #5
    Join Date
    May 2010
    Location
    Cairns, Australia
    Posts
    2,252

    Default

    All water based fillers will have shrink back problems, or move with big swings in RH. They will do anything from a terrible job to a reasonably acceptable one if you arent super critical.

    Timbermate is an Aussie product that has been made for decades. Im pretty certain that is what the ColorTone product is and has just been rebranded. I used it a few times and while OK, it wasn't great.

    I use a two part clear epoxy resin now called Bote Cote made in Brisbane. Don't know if you can get it overseas. Very forgiving on mixing ratio and easy to sand.

  6. #6
    Join Date
    May 2011
    Location
    So. Oregon
    Posts
    1,630

    Default

    Doing a glossy pore-filled finish with a minimum of flaws will dramatically add to the total time spent on the project. It isn't necessarily a bad thing to give it a try but go into it with eyes open and with the understanding that more finish probably isn't going to improve tonal quality of the finished instrument.

    I haven't had much success with water based fillers. They have a real problem with shrinkage and the relatively large pores in mahogany maximize that problem. Water based fillers also tend to deaden the appearance of the wood. This vid shows a piece of walnut sprayed with lacquer and buffed after being filled with TimberMate and then, on the second side, filled with CA. There's a big difference in appearance.

    https://www.youtube.com/watch?v=66jS4Vz80mQ

    I like CA and find it most useful on woods that have only moderate pores. For larger pores such as mahogany has, epoxy works better, at least for me. I've settled on System Three Silver Tip. This excellent vid by the estimable Jay Lichty covers pore filing with Silver Tip. It can recoated without sanding within 72 hours, which is helpful with mahogany because you might want to apply a couple of good coats to mostly fill the pores before doing any sanding. As far as final appearance of the grain is concerned, an epoxy pore fill will do about as good a job as CA. In both cases, it's a good idea to apply a coat of shellac before the topcoat.

    https://www.youtube.com/watch?v=FXr9...are_video_user
    Last edited by saltytri; 12-14-2018 at 09:47 PM.

  7. #7

    Default

    Quote Originally Posted by saltytri View Post
    Doing a glossy pore-filled finish with a minimum of flaws will dramatically add to the total time spent on the project. It isn't necessarily a bad thing to give it a try but go into it with eyes open and with the understanding that more finish probably isn't going to improve tonal quality of the finished instrument.

    I haven't had much success with water based fillers. They have a real problem with shrinkage and the relatively large pores in mahogany maximize that problem. Water based fillers also tend to deaden the appearance of the wood. This vid shows a piece of walnut sprayed with lacquer and buffed after being filled with TimberMate and then, on the second side, filled with CA. There's a big difference in appearance.

    https://www.youtube.com/watch?v=66jS4Vz80mQ

    I like CA and find it most useful on woods that have only moderate pores. For larger pores such as mahogany has, epoxy works better, at least for me. I've settled on System Three Silver Tip. This excellent vid by the estimable Jay Lichty covers pore filing with Silver Tip. It can recoated without sanding within 72 hours, which is helpful with mahogany because you might want to apply a couple of good coats to mostly fill the pores before doing any sanding. As far as final appearance of the grain is concerned, an epoxy pore fill will do about as good a job as CA. In both cases, it's a good idea to apply a coat of shellac before the topcoat.

    https://www.youtube.com/watch?v=FXr9...are_video_user
    Thanks, saltytri I guess I forgot to turn on the notification to this post, so I am just seeing it.

    The video by Jay Lichty is excellent. Thank you for posting it. Where do you get your System Three SilverTip? I did a little search and most places want to sell it in large quantities.

  8. #8
    Join Date
    May 2011
    Location
    So. Oregon
    Posts
    1,630

    Default

    I get a quart/pint kit on Amazon.

  9. #9

    Default

    Quote Originally Posted by saltytri View Post
    I get a quart/pint kit on Amazon.
    In Jay Lichty's video, it looks like he is using the Fast Hardner. Is this what you use? In the video, he said the Epoxy hardens enough to sand in 4 hours that does not seem all that fast

  10. #10

    Default

    Just out of curiosity if Jay Lichty is just using the Epoxy as a grain filler why does he not just sand back to the wood. The Epoxy would stay in the grain and he would have the base he is looking for?

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •