Scratches - Pain in the glass

ToniYo

Premium Member
Has anyone had any experience removing or minimizing scratches on the inside of glass aquariums? I have a 150, a 75 and a 65 that I need to descratchify!

Thanks
 
tagging along...mine had a couple scratches and I added more. Any ways to lessen them?


...and Toni OMG thank you! ...you know! swEEt!
 
Eric,

Pickup was a bit of a surprise. The tank is scratched but definitely not unsalvageable. When I got there I found that the tank came with this lighting unit
http://www.fishtanksdirect.com/index.asp?PageAction=VIEWPROD&ProdID=1085
a huge Sealife sump, a UV sterilizer, a Berlin Red Sea Classic XL skimmer with a 3100 Rio pump, a Quiet One pump, timers, test kits and a partridge in a pear tree. But the biggest surprise were the 5 fish. One blueface angel about 6-7 inches, a clown trigger about 4-5 inches, a coral beauty, and 2 clowns. I'm not sure what I am going to do with the fish as only the clowns are reef safe. There was also about 100 lbs of beautiful live rock and 100 lbs of sand. It was not a bad day!

I have ordered the Janvil scratch revival system and can't wait to see if it works. I spoke with the gentleman at the company and was assured that it would not hurt the fish after treatment. I will keep you posted. Hope all is well!

Laine - you are so welcome. There will be more to come.
 
OK not sure if I want to get involved but here it goes :D. DO NOT USE 150 on the tank â€"œ you will ruin your tank!

To polish you need is cerium oxide but before you can start you need to find out how deep the scratches are. Just run your finger nail across the scratch if you can feel it then it’s too deep to polish out and you will have to grind out the scratches. The grit used to grind out the scratches on glass will depend on how deep the scratches are and I normally start with 2000 (Two thousand) grit. If that isn’t working then I’d go to either 1200 or 1500 grit. If that seems to be working then go back to the 2000 because the 1200/1500 will leave scratches. Once all the scratches are out then it’s time to use the cerium oxide.

Also- just to let you know you also can use the black sandpaper at Lowes/HomeDepot (I’ve not used this but have heard you can) which you need to use with water. Then same as above go finer and finer with the grit until it’s ready to polish.

When you mix the cerium oxide, mix it with water to the point it looks kind of milky. Put this on a buffing pad and the harder the pad the better (leather, felt etc). You need to keep the area wet so I either use a spray bottle with water â€"œ or I use a wet bet sander. This is just a run down on the process.
 
Carol,

Thanks for sharing. I did not know you could get scratches out. I guess the tank has to be empty?

Good to know.

Cheers,
Chris
 
<a href=showthread.php?s=&postid=10059448#post10059448 target=_blank>Originally posted</a> by ReefArtist
OK not sure if I want to get involved but here it goes :D. DO NOT USE 150 on the tank â€"œ you will ruin your tank!

To polish you need is cerium oxide but before you can start you need to find out how deep the scratches are. Just run your finger nail across the scratch if you can feel it then it’s too deep to polish out and you will have to grind out the scratches. The grit used to grind out the scratches on glass will depend on how deep the scratches are and I normally start with 2000 (Two thousand) grit. If that isn’t working then I’d go to either 1200 or 1500 grit. If that seems to be working then go back to the 2000 because the 1200/1500 will leave scratches. Once all the scratches are out then it’s time to use the cerium oxide.

Also- just to let you know you also can use the black sandpaper at Lowes/HomeDepot (I’ve not used this but have heard you can) which you need to use with water. Then same as above go finer and finer with the grit until it’s ready to polish.

When you mix the cerium oxide, mix it with water to the point it looks kind of milky. Put this on a buffing pad and the harder the pad the better (leather, felt etc). You need to keep the area wet so I either use a spray bottle with water â€"œ or I use a wet bet sander. This is just a run down on the process.

Carol I have done this with a windshield before with great success. The 3M wet/dry sandpaper from HomeDepot, Lowes, or Auto parts store works perfect for this.
 
<a href=showthread.php?s=&postid=10059448#post10059448 target=_blank>Originally posted</a> by ReefArtist
OK not sure if I want to get involved but here it goes :D. DO NOT USE 150 on the tank â€"œ you will ruin your tank!

To polish you need is cerium oxide but before you can start you need to find out how deep the scratches are. Just run your finger nail across the scratch if you can feel it then it’s too deep to polish out and you will have to grind out the scratches. The grit used to grind out the scratches on glass will depend on how deep the scratches are and I normally start with 2000 (Two thousand) grit. If that isn’t working then I’d go to either 1200 or 1500 grit. If that seems to be working then go back to the 2000 because the 1200/1500 will leave scratches. Once all the scratches are out then it’s time to use the cerium oxide.

Also- just to let you know you also can use the black sandpaper at Lowes/HomeDepot (I’ve not used this but have heard you can) which you need to use with water. Then same as above go finer and finer with the grit until it’s ready to polish.

When you mix the cerium oxide, mix it with water to the point it looks kind of milky. Put this on a buffing pad and the harder the pad the better (leather, felt etc). You need to keep the area wet so I either use a spray bottle with water â€"œ or I use a wet bet sander. This is just a run down on the process.
This is one of those posts that I copy and paste in my documents. You never know when you may need this info. I had never heard of cerium oxide before, so I did a little Google on it. Amazing stuff it seems. Thanks Carol!!!:rollface:
 
Mmmmm - we might have to have a DIY - how to remove scratches from your tank :D. Thank you all for the compliments and I do hope it helps. I do have lots of cerium oxide if any one needs it.
 
Copy Paste, Thanks Carol for the info. Can this be done while the tank is up by taking the water below the scratch, does it have a curing time for this cerium oxide? Thanks
 
To be Honest I've never done this below water and I would take the water below the scratch. Not really sure if it would have any negative affects on living creatures - I wouldn't want to find out. No curing time for the cerium oxide. Just think of as wax, as if your waxing your car. This is just what we use on our buffing pad to get glass back to the shiny slick state.
 
Will the polishing work with Starphire? I have very light scratches that cannot be felt with a fingernail, Im worried about reports of distortion. Scratches are on the outside of the glass.
 
Talk about digging.

I got super pumped when I seen reefartist, then I saw the date. Womp womp.

Anybody heard from carol? I really miss dealing with them.
 
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