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Thread: Quick question re sanding
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2nd February 2014, 09:15 PM #1New Member
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Quick question re sanding
Hi All,
I have a quick question re sanding please.
I am currently working with some pieces that are 330 x 19 x approx 900mm. I am sanding them back and will ultimately finish them with hard burnishing oil. In the finished product only one side of each piece will be visible.
How far should I sand back the non-visible side?
Someone told me once that you should finish both sides of a piece exactly the same, in order to stop it warping or bending with time. That seems OK to me, but to sand back a piece of wood to 1500 grit (for example) and burnish it, knowing it will never be seen again, seems overkill to say the least. Where is the line? In past projects I have sanded back to 300 grit and put on some sanding sealer before then concentrating only on the good side, but even that is potentially a lot of work. On my current project I am dealing with 12 of these babies! If anyone thinks I shouldn't be bothering at all with the back side I would be very glad to hear it!
Any thoughts?
Andrew
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2nd February 2014 09:15 PM # ADSGoogle Adsense Advertisement
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2nd February 2014, 09:26 PM #2
Hi Andrew,
I would usually finish the underside of a piece to 400 grit, then just give it two coats of oil, no further sanding. Seems to work OK for me. I don't see any point in burnishing the underside of a piece that will only show one face.
Regards,
Rob
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2nd February 2014, 09:39 PM #3Taking a break
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As long as the non-seen face is sealed it doesn't matter if you stop at 80 grit.
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2nd February 2014, 10:09 PM #4
I would stop at 80 grit but make sure it is well sealed as well
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3rd February 2014, 08:21 AM #5GOLD MEMBER
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The sealing is the important part not the sanding for the non seen side,movement should be stabilized if both sides are treated the same. We are talking about the movement that will occur if only one side is sealed not seasonal movement.
Regards Rod.
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3rd February 2014, 02:47 PM #6New Member
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3rd February 2014, 05:38 PM #7Taking a break
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4th February 2014, 08:09 AM #8
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4th February 2014, 08:23 AM #9
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6th February 2014, 08:32 PM #10New Member
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Great.
Many thanks to you all for the advice.
Andrew
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