Copper Sinks
Copper Sinks
Scratch removal from a copper heat sink?
even though nobody seems to answer these
I've got a heat sink with a copper strip and the bottoms a little scratched up.
Can I buff/sand this without hurting it?
Yes you can; it's called "lapping", and I've done it dozens of times myself on both the CPU and its heatsinks and GPU heatsinks as well. It's quite easy; it'll just require a variety of different "grit" sandpapers, or one if you're patient ( http://www.youtube.com/watch?v=g9couQY4MAs ), starting off with the roughest and ending with the least, resulting in a smooth, mirror finish. One warning though: it does depend on the heatsink. Some cheaper ones aren't pure copper/alluminum and may have nickel plating that could chip from lapping.
Below is a good guide to doing this.
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 Herbeau 4406 Copper Farmhouse Sink  US $5,011.00
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 NEWSink Design Bathroom Copper Bathtub 63¨x355¨245¨ US $3,150.00
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 Native Trails CPS573 Hammered Copper Farmhouse Sink US $3,056.00
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 WH5319COFCT 53 TRIPLE BOWL APRON COPPER KITCHEN SINK US $2,752.00
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 WH3621COFCD 36 DOUBLE BOWL APRON COPPER KITCHEN SINK US $2,616.00
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 WH3020COFCSF 30 FRONT APRON COPPER KITCHEN SINK US $2,544.00
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 WH3020COFCPC 30 FRONT APRON PINE COPPER KITCHEN SINK US $2,544.00
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 WH3020COFCBW 30 FRONT APRON COPPER KITCHEN SINK US $2,544.00
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 WH3020COFCFL 30 FRONT APRON COPPER KITCHEN SINK US $2,544.00
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 Thompson CSW P Frida Copper One Piece Sink and Pedestal US $2,399.20
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 Copper 67 Double Slipper Bathtub W Rings Match Sink US $2,399.00
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 COPPER 67 DOUBLE SLIPPER BATHTUB TO MATCH SINK US $2,349.00
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 Copper 67 Double Slipper Bathtub To Match Sink US $2,349.00
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 Hammerwerks Kuchen Farmhouse Double Bowl Sink Copper US $2,249.25
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 Gourmet Copper Two Bowl Undermount Apron Kitchen Sink US $2,122.88
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 Native Trails CPS273 Hammered Copper Farmhouse Sink US $2,118.00
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 Belle Foret F1KIT WC Sink Apron Front Weathered Copper US $2,089.07
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 ELKAY 32 x 20 Copper Kitchen Sink ECU311910RACH US $2,049.60
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 WH3020COFC 30 SMOOTHE FRONT APRON COPPER KITCHEN SINK US $2,031.00
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 New Copper Kitchen Sink Double Bowl as native trail US $1,995.00
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 ELKAY 33 x 22 Copper Apron Kitchen Sink ECUF3319ACH US $1,990.20
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 ELKAY 51 x 14 Copper Kitchen Bar Sink ECU5014ACH US $1,989.60
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 Houzer Hammerwerks ChaletChef Double Bowl Sink Copper US $1,949.25
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 33x22x10 kitchen apron copper sink w nickel finishing US $1,900.00
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 Native Trails CPS579 Bistro Hammered Copper Sink US $1,863.00
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 Hammerwerks Kuchen Farmhouse Single Bowl Sink Copper US $1,845.00
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Custom Copper sinks and Copper Countertops - HGTV