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Thread: Grain filling problem

  1. #11
    Join Date
    Aug 2018
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    252

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    Quote Originally Posted by Beau Hannam Ukuleles View Post
    A better solution is to:
    1- Hand sand the back with 220 or 320.
    2- Leave the dust in the pores and,
    3- Flood it all with thin ca glue.

    At this stage, you can either sand the ca flat and pore fill, or sand it back to wood and pore fill.
    Either way, you will need to wipe with naptha to remove all the white ca dust before pore filling and finishing.

    This will do three things-
    1- Deal with (fix) any invisible micro cracks.
    2- Seal the wood.
    3- Partially fill the pores.

    After this you can proceed with whatever pore filler then finish you are using.

    After the back has been ca'ed, do the same with the sides.

    ps- this is a good and safe way to go about all things rosewood if you are selling an instrument professionally- if you are making it for yourself....it might be a bit of overkill.
    Beau, I watched your video on pore filling with CA. What were you using to spread the CA? Sort of looked like a cotton swab to me. At some point later this year, I'll be pore filling Red Oak back & sides. I don't plan on completely leveling the pores, but I do want to have some level of filling, as Red Oak is so open.

  2. #12
    Join Date
    Dec 2011
    Location
    Grand Junction, Colorado
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    2,784

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    Quote Originally Posted by tonyturley View Post
    Beau, I watched your video on pore filling with CA. What were you using to spread the CA? Sort of looked like a cotton swab to me. At some point later this year, I'll be pore filling Red Oak back & sides. I don't plan on completely leveling the pores, but I do want to have some level of filling, as Red Oak is so open.
    HI,
    The cotton swab looking stuff was actually Bounty kitchen towel - some towel kicks off the ca glue way quicker (don't use viva)- bounty seems good.

    I no longer grain fill with CA glue as the fumes are just too much and linger for hours in the workshop- I do still use CA to stabilize problematic woods like Brazilian rosewood.- I flood the wood with thin ca which deals with any invisible micro cracks- but this isn't a pore fill.

    If I want a clear pore fill, I use either West Systems epoxy or Zpoxy PT40- It's self leveling finishing epoxy (LMI also sell it). Pore filling prep is a 2 or 3 day process- don't rush it if you want a flat finish.

    https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

  3. #13

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    I just thought I would put it out there that you can just use Everclear or grain alcohol instead of all the chemicals....I worked at a printing press as a young artist and because of the over-exposure to acetone and such I became chemically sensitive and therefore make my instruments with little to no chemicals and Grain Alcohol works great.....What cracks me up is it is not legal in some places yet the nasty stuff is....

    P.S. after re-reading this it sounds a little judgemental and that is not my intention.... You do you as they say nowadays. I just try to be ecologically minded and health conscious as it can be very hard to live in this world full of chemicals when you get migraines from all of it....So for those who want the option, here is one solution.

  4. #14
    Join Date
    Oct 2014
    Location
    Little River, California
    Posts
    2,285

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    Like Beau (Beau knows) I just use denatured ethanol (camp stove fuel ethanol 99% pure). Stinks but non-toxic vapor. Toxic to drink obviously. Cheap.

    Certainly Everclear is the go-to solvent for lots of luthiers. Plus when things go wrong (what could go wrong?) you can add it to your lemonade and drink it. However I have two problems with Everclear:

    1) It's very expensive
    2) It contains 10% water

  5. #15
    Join Date
    Dec 2011
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    Grand Junction, Colorado
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    Of course, you can also just use water t wipe away ca dust- it just takes longer to evaporate....especially on raw wood. I won't use water on raw wood unless you are raising the grain on purpose.

  6. #16
    Join Date
    Aug 2018
    Posts
    252

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    Thanks for the info and the link, Beau.

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