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Sanding Poblems (Read 557 times)
 
David Ross
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Sanding Poblems
Feb 16th, 2018 at 6:43am
 
Hi When I sand some of my work the dust from woods like paduak get onto white wood and spoils finish. How do I stop this happening?

David
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Ed Weber
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Re: Sanding Poblems
Reply #1 - Feb 16th, 2018 at 9:54am
 
This is a common problem, not that it makes you feel any better.
If you can,
Sand the contrasting woods separately
Use a sanding sealer
Clean the sanded area thoroughly with acetone or mineral spirits and compressed air.

You may also encounter bleeding when applying finish,
Wipe with solvent before applying finish
Apply light coats in a single pass
Move from light to dark
Spray if necessary

Experiment on a practice piece
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David Ross
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Re: Sanding Poblems
Reply #2 - Feb 16th, 2018 at 4:01pm
 
Thanks Ed

When you say use sanding sealer
Do you mean apply sealer after final cut but before you start sanding and when you apply sealer do you spray on light goats or apply with brush

Cheers David
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Ed Weber
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Re: Sanding Poblems
Reply #3 - Feb 16th, 2018 at 6:34pm
 
What you are tying to do is "seal" or fill up the pores of the wood, especially the lighter wood. This way the padauk sanding debris has a much more difficult time contaminating the lighter wood, no pores to get into since you sealed them.
Sealer can be brushed wiped on with a rag or sprayed. Will spraying is best with pesky woods like padauk, you can usually just wipe it on, you will be sanding after all. The padauk shouldn't need that many goats  Roll Eyes of sealer. If it starts to build, you have enough.
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Grant Wilkinson
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Re: Sanding Poblems
Reply #4 - Feb 17th, 2018 at 12:04pm
 
I follow Ed's method, using a rattle can of shellac. It's quick, and does a good job of sealing the light wood against the sanding dust of the darker segments.
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Grant Wilkinson
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Walt Nollan
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Re: Sanding Poblems
Reply #5 - Mar 2nd, 2018 at 10:01am
 
An easier method is use a air gun to immediately after the sander.  It takes a little coordination but it works.  the disadvantage is that you are blowing dust everywhere!
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David Ross
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Re: Sanding Poblems
Reply #6 - Mar 5th, 2018 at 5:52am
 
Thanks Gents For all the help

David
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