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  #1  
Old 06-28-2009, 02:52 PM
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My Gear: Spector l SWR l EMG
 
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Restaining question

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Recently i just bought a Carvin 5 string fretless. I am wanting to restain the bass a very dark brown. It currently has a semi-greenish color to it with no clear coat on it. Do i need to get something (sandpaper...) to take the green off before i stain it another color? I have never done this before, so i am just wanting to make sure i don't mess anything up. Many thanks in advance.

PS- Is this link pretty good to follow for restaining it as well.

http://www.projectguitar.com/tut/3d.htm
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  #2  
Old 06-28-2009, 04:03 PM
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Quote:
Originally Posted by bassgiant15 View Post
Recently i just bought a Carvin 5 string fretless. I am wanting to restain the bass a very dark brown. It currently has a semi-greenish color to it with no clear coat on it. Do i need to get something (sandpaper...) to take the green off before i stain it another color? I have never done this before, so i am just wanting to make sure i don't mess anything up. Many thanks in advance.

PS- Is this link pretty good to follow for restaining it as well.

http://www.projectguitar.com/tut/3d.htm
It sounds like it's a green water or alcohol based stain with a tung oil finish to protect it. To re-stain it properly you'll have to get it all off. Probably sanding is your best bet. Chemical strippers can take a long time and you'll still have a lot of sanding after.

I'd start with about 80 grit paper until I got everything off including that stain, which will be deep in the wood. Then work your way up the grits to 220, before you re-stain. Don't buy cheap garnet sandpaper. Get aluminium oxide. Anyhow, it's a lot of work but it's worthwhile to not cut corners and do it right the first time.

You could easily make a mess of it if you're new at it. See if you can find a copy of the book "Hand Applied Finishes" by Jeff Jewitt. Library or on line from Taunton Press. It's worth the price if it saves you a lot of grief.

However, if you're like most of the guys who pose these questions, you'll ignore advice and you'll probably just jump in and start sanding. If so, you could wind up with a lot of deep scratches that will be really tough to sand out and a new stain job that is blotchy with sanding marks showing. Good luck.
  #3  
Old 06-30-2009, 04:55 PM
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My Gear: Spector l SWR l EMG
 
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thank you very much for the reply!!!

i do know that it has a tung oil finish on it.

So basically, i need to get some 80 grit sandpaper and get all of the stain off before i re-stain it.

Just for grins...if i wanted to stain it a dark black would i still need to get absolutely all of the greenish stain off of it as well? Would the black cover up the greenish stain if i didn't get all of it off?

I guess i am just wanting to know because i really don't want to mess anything up sanding, but i would like to do this re-staining myself.

Thanks in advance for any help, and again thanks for the reply.
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  #4  
Old 07-01-2009, 03:26 PM
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Originally Posted by bassgiant15 View Post
thank you very much for the reply!!!

i do know that it has a tung oil finish on it.

So basically, i need to get some 80 grit sandpaper and get all of the stain off before i re-stain it.

Just for grins...if i wanted to stain it a dark black would i still need to get absolutely all of the greenish stain off of it as well? Would the black cover up the greenish stain if i didn't get all of it off?

I guess i am just wanting to know because i really don't want to mess anything up sanding, but i would like to do this re-staining myself.

Thanks in advance for any help, and again thanks for the reply.
Yes, you absolutely must get down to bare wood. That tung oil will have soaked in as deep as the stain. If you leave any in the wood, the new stain won't penetrate there leaving a blotchy result.

I have on occasion used a product made for removing deeply ingrained stains and oil finishes. It's a two part system. One part has an alkaline remover to get out oil based stains and oil finishes and the second part is an acid which neutralizes it and bleaches the wood further. I doubt it will work on the stuff Carvin uses. So your best bet is to sand. Start with 80 grit sanding with the grain until you think you've got down to bare wood. Then wipe on some paint thinner and take a look. If any old finish remains it will show up while the paint thinner is wet. So sand some more. When it's down to bare wood, wipe off the dust and switch to 120 grit, then 180, then 220, always sanding with the grain. You can work up to as smooth as 320 but won't notice much of an improvement over 220.

Then you're ready to stain.

Staining is whole separate process. When you're ready for that, post again with your results and we can carry on.

I'd probably use a water based ebony coloured dye rather than a pigmented stain. It will allow some grain to show. You might need 2 or 3 applications. Then tung oil over the top for protection.
  #5  
Old 07-02-2009, 02:36 PM
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My Gear: Spector l SWR l EMG
 
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Originally Posted by 62bass View Post
Yes, you absolutely must get down to bare wood. That tung oil will have soaked in as deep as the stain. If you leave any in the wood, the new stain won't penetrate there leaving a blotchy result.

I have on occasion used a product made for removing deeply ingrained stains and oil finishes. It's a two part system. One part has an alkaline remover to get out oil based stains and oil finishes and the second part is an acid which neutralizes it and bleaches the wood further. I doubt it will work on the stuff Carvin uses. So your best bet is to sand. Start with 80 grit sanding with the grain until you think you've got down to bare wood. Then wipe on some paint thinner and take a look. If any old finish remains it will show up while the paint thinner is wet. So sand some more. When it's down to bare wood, wipe off the dust and switch to 120 grit, then 180, then 220, always sanding with the grain. You can work up to as smooth as 320 but won't notice much of an improvement over 220.

Then you're ready to stain.

Staining is whole separate process. When you're ready for that, post again with your results and we can carry on.

I'd probably use a water based ebony coloured dye rather than a pigmented stain. It will allow some grain to show. You might need 2 or 3 applications. Then tung oil over the top for protection.
MANY THANKS FOR THE REPLIES AND THE HELP!!!!!

I took the neck off yesterday, and i still have the electronics to remove as well. I bought some sandpaper as well, so hopefully i will start on the sanding this weekend. I'll try to post pics of my progress as well. I am sure more questions will follow. Thanks again!
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Spector Euro 4LX l NS-2000/4 l CR4FM l Rare 1987 NS-2A
Spector Club Member #11
  #6  
Old 07-03-2009, 06:57 AM
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Quote:
Originally Posted by bassgiant15 View Post
MANY THANKS FOR THE REPLIES AND THE HELP!!!!!

I took the neck off yesterday, and i still have the electronics to remove as well. I bought some sandpaper as well, so hopefully i will start on the sanding this weekend. I'll try to post pics of my progress as well. I am sure more questions will follow. Thanks again!
Great. Just take it easy and it will work out fine. I hope you bought lots of sandpaper, particularly the 80 grit and that's it's the good stuff-aluminium oxide, not garnet paper. Pics would help.
  #7  
Old 07-16-2009, 03:49 PM
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Well i ordered some 80 grit aluminium oxide paper today. I'll post pics soon.
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Spector basses rule!www.soundclick.com/D20 http://www.youtube.com/D20band www.theicaruseffect.com
Spector Euro 4LX l NS-2000/4 l CR4FM l Rare 1987 NS-2A
Spector Club Member #11
  #8  
Old 07-16-2009, 05:33 PM
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Originally Posted by bassgiant15 View Post
Well i ordered some 80 grit aluminium oxide paper today. I'll post pics soon.
Very good. And get some 120, 180, 220 and 320 for the rest of the job.
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