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Re: [APD] Anyone Have Experience With Acrylic Tanks???

Years ago I had an acrylic tank, and my experience was that scratches 
on the inside surfaces are inevitable.  Even minor cleaning with just 
about anything leaves very faint scratches.  But, the good news is that 
with water in the tank the scratches disappear.  I also found that 
algae cleaning was very difficult, requiring one of those plastic scrub 
pads, and that finally left deep enough scratches that it never did 
look really clear.  (This was back in the days when an aquarium meant 
having lots of algae on the "glass")  So, I decided not to ever use 
acrylic tanks again, and haven't.  I think the "scratches" you are 
seeing are so small they will disappear with water in the tank, and 
aren't really even scratches, but just imperfect polishing.  Just my 
opinion, of course.  (Look at how dusty the air in any room is when the 
sun shines through it.)

Vaughn H.

On Sunday, September 25, 2005, at 01:33 AM, Jerry Baker wrote:

> Dave Wilson wrote:
>> 3M used to sell a plastic polishing kit called "Finnes it"   That was 
>> a few
>> years ago when I the kits to polish the inside of Australias largest
>> freshwater public aquarium to remove all the scratches on the acrylic 
>> caused
>> from the pignose turtles and the freshwatwer sawfish.   It took 8 days
>> working ten hours a day.   The kits worked well.
> I tried a polish by Novus, but that made it worse. These scratches
> aren't like anything caused by a sharp object, it's like what it looks
> like when someone uses a dry brown paper towel to vigorously rub 
> acrylic
> (like a CD), or like the concentric circles of swirls you see in
> automobile paint when you look at it in the sun. The polish did not 
> have
> any effect whatsoever other than to increase the number of these fine
> scratches.
> I'm going to have the manufacturer polish them out. I would expect a
> brand-new acrylic tank to be virtually scratch free. It shouldn't look
> any different than glass when new. I don't even want to think of my
> options if they won't/can't polish it out.
> -- 
> Jerry Baker
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