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Thread: Wet Sanding

  1. #1
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    Wet Sanding

    I am working on a table that is a potential huge problem. It is a beautiful book matched mahogany table but is particle board substructure. A large chandler fell on it and created some rather large compression dents.
    1st. Added just enough water to the dents to lift them before stripping. After stripping cleaned with lacquer thinner so not to cause any unwanted puckering on the substructure.
    2nd. 3 piss coats of sanding lacquer sealer then sand with 320 and repeat.
    3rd. 3 coats of finish in this case High Gloss lacquer. 1 piss coat and 2 heavy coats.
    4th. Wet sand with 400.
    Now I use tap water cool water and few drops of dish washing liquid.
    Begin with a sanding block and the paper wraped around it. Start with a light touch so not to burn through the finish.
    I go over a single area a minumum of 7 times and since I am right handed I start on my rt. and move lt.
    Now for the details' As I am rapidly half with of the table I am listening for the sound of the finish to soften from a raspy sound to a smooth sound. as the sound softens I slide a little left and cut the finish down to that smooth sound.
    1 of the best helpers or tricks I have used in learning how to make the paper last is to get as much saliva mixed in with the water. I dip tobacco so having enough is not a problem, if you do not dip do not start use gum LOL.
    You want to create a nice foam of white residue when sanding and try not to lift the paper off the table, that will increase the likelihood of clogging to the paper. Add saliva as you go.
    Now once you are to the other end the edges are left with unsanded areas and you can see it in the shinny little creators left. You can take the sand paper and something I would not advise for the novice, work agaise the grain length-wise but lightly and most times only about 1" of 2 in withe is needed to remove the area that was not sanded. Then sand out with the grain lightly to remove cross grain scratches. Now do the other side.
    5. on to the next step; apply 3 oats for finish 1 piss coat 2 regular. Now wet sand with 400 lightly then 600 lightly then move to 1200 but a little more pressure will be needed and then 2000 gt. Once you have finished with 2000 you are ready to buff with fine Liberon steel wool and wax.
    Attached Thumbnails Attached Thumbnails IMAGE_026.jpg   IMAGE_027.jpg   IMAGE_028.jpg  
    I dream a lot. I do more painting when I'm not painting. It's in the subconscious.
    ::: Andrew Wyeth :::
    colonialrestorationstudio.com

  2. #2
    Join Date
    Oct 2007
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    Indianola, Ia about 12 miles south of Des Moines
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    Thanks for the step by step. I will be tring that on some upcoming projects.

  3. #3
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    i would have very nervous putting water on that table,, but if you have done it once and see that it works then its not so bad.. and i think you might have done it more than once nice step by step..that looks like a spong your sing as block am i correct rather than a block of wood?
    If in Doubt, Build it Stout!
    One hand washes the other!
    Don't put off today till tomorrow!

  4. #4
    Join Date
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    GTA Ontario Canada
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    Thanks Dave I learn from you non stop. Only thing i would like to know is how long you leave these individual coats before you touch them.

    I know you using lacquer spray so i guess that dries pretty quickly. But are we talking leaving it for hours of a day between. How many days did this job take you for example. Just want a feel for duration.

    BTW Dave I had to look up what dipping tobacco meant me being from another part of the globe.

    I dont think i will be trying that out after getting this popping up after googling dip tobacco.
    Last edited by Rob Keeble; 08-22-2010 at 01:32 AM.
    cheers

  5. #5
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    Gee, thanks for the link Rob. I know I need to quit, but wow, not this early in the morning.

  6. #6
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    well steve, i can attest it isnt easy, but its possible.. and gator would like you to i am sure..first time was age twelve.. i think gum is cheaper these days as well.
    If in Doubt, Build it Stout!
    One hand washes the other!
    Don't put off today till tomorrow!

  7. #7
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    Thanks Dave, this came at a good time for me.

    I need to do a little wet sanding and the first time I tried I really botched things up...
    Programmer - An organism that turns coffee into software.
    If all your friends are exactly like you, What an un-interesting life it must be.
    "A door is what a dog is perpetually on the wrong side of" Ogden Nash


  8. #8
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    On step 5. I dropped the Piss coat and went with 2 heavy coats. Reason. I needed to wool out the table because I had not applied a coat sense Friday.
    Step 6. After I wooled the table out with Purple pads I like to use MICRO FIBER RAGS. These rags and great and you can buy them in bundles at Home depot. They will pick up all lint and sanding residue, they will wipe a table dry and you can wash them for reuse. The 2nd coat I laid on a little heaver over the areas that received the most damage and they will sand out nicely with the 600 grit wet sand.
    Now applying the 1&2 coat after wooling the table I start with the edges 1st then the top. Placing myself in the inside of the table top I spray from outside in and over lap my fan by at least 1/2 and move slowly with the gun 5-6" above the table. This allows the finish to not set before the next pass which will also allow for a laying out of an even coat.
    I'm done with applying finish now back to Wet Sanding.
    Attached Thumbnails Attached Thumbnails IMAGE_035.jpg   IMAGE_036.jpg   IMAGE_038.jpg   IMAGE_039.jpg   IMAGE_040.jpg  

    IMAGE_042.jpg   IMAGE_043.jpg   IMAGE_045.jpg  
    I dream a lot. I do more painting when I'm not painting. It's in the subconscious.
    ::: Andrew Wyeth :::
    colonialrestorationstudio.com

  9. #9
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    excellent tutorial and photos of the application of finish dave...whos your picture taker..?
    If in Doubt, Build it Stout!
    One hand washes the other!
    Don't put off today till tomorrow!

  10. #10
    Join Date
    Apr 2009
    Location
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    My son Jarrod. I hate to stop him from working because he will find an excuse to not go back to the project. LOL

    It's not over yet.
    I dream a lot. I do more painting when I'm not painting. It's in the subconscious.
    ::: Andrew Wyeth :::
    colonialrestorationstudio.com

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