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Old 09-15-2011, 06:51 PM   #1 
SilverCaracal
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Scratched Acrylic

How would you fix scratches on an acrylic tank other than buying a kit or something? I've read that sandpaper works, but others say that it doesn't.
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Old 09-15-2011, 07:21 PM   #2 
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This is only in theory, but...

You could try to buff it out with very, very, very fine sand/glasspaper. Like 20,000 grit or finer. I've used this on scratches for my car, very, very lightly, with a follow up of a fine cut 'n' polish compound and alot of elbow grease and then polish.

Not sure how well this will work on glass acrylic though, however I imagine it would be similar to the clear coat of a car's paintwork.

If you use too rough of a grit paper or compound, it will scratch the tank further. I'm not sure how to clean it out afterwards so it's safe for fishy either.
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Old 09-15-2011, 07:28 PM   #3 
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Ok thanks! Hopefully it works!!
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Old 09-15-2011, 07:31 PM   #4 
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Try testing it on an area as small as you possibly can. Do the fine paper and then compound, wipe clean after your elbow work. Stand back and see if the small area is worse or better.

If worse, I'd leave it. If better, well continue lol.
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Old 09-15-2011, 07:42 PM   #5 
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One problem. I'm not sure many stores sell sandpaper up to 20,000 grit...
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Old 09-15-2011, 07:49 PM   #6 
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Sorry I've exagerrated.

You should be able to get up to P2500 grit. Pop down to the local hardware or perhaps even painters. They should have an assortment, just get the highest grade grit you can get, obviously tell them what it's for.

I imagine you probably wouldn't want anything less than P600 if possible. Don't forget the paste compound either :)

Just remember if you're using a fine grade sandpaper you may need to wet it a little.
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Old 09-15-2011, 07:53 PM   #7 
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That makes a lot more sense! Thanks so much!
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Old 09-15-2011, 07:57 PM   #8 
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You're very welcome, I hope it works out for you.
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Old 09-16-2011, 03:18 AM   #9 
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is the scratch on the inside or outside of ur tank? ..

i don't know about putting compounds inside the tank .. and how it will do with constant under waterness .. and if it's toxic to fish ..

maybe this might help
http://www.sisweb.com/micromesh/refe...m-restoral.htm

also i've seen some acrylic scratch removal kits at a LPS that's similar to this
http://www.freshmarine.com/scratch-removal-kit.html
and
http://www.fishsupply.com/szacl-90000.html

Last edited by HatsuneMiku; 09-16-2011 at 03:21 AM.
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Old 09-19-2011, 08:55 PM   #10 
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Probably a headlight restoration kit would work. Rubbing compound for cars also is an option. Depends on how deep the scratch is.

As noted, probably not the best idea if this is inside the tank.
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