Hi I would like to know if it possible to remove scratches from an
acrylic fish tank ,without leaving a blur.It can be done but it seems
a blur is left so the surface would need polishing to restore the
shine Any ideas anyone.There is a product advertised that is "supposed
"to fill in scratches on things like glasses but I can't find the ad.

da1...

The products which remove scratches from acrylic are not meant
for use on glass(es), and vice-versa.

A good description of the products and procedures for removing
scratches from acrylic is available on this page from Scientific
Instrument Services:
http://www.sisweb.com/micromesh/reference/aquarium-restoral.htm

Their page for MicroMesh Cushioned Abrasives, referred to in the
page above, is here:
http://www.sisweb.com/micromesh/

As you can see in the first link, the products you will need
will depend on the depth of the scratches which must be removed.

Note the warning at the bottom:
"The abrasives in this kit are not recommended or intended for
 use on eye glasses, optical instruments, or glass of any kind."

Also note the reference to Micro-Gloss for removing the finest
degree of "haze and swirl" caused by improper cleaning:

"MICRO-GLOSS liquid abrasive is an excellent maintenance polish
 for the outside of the aquarium.  Micro-gloss will remove haze
 and swirl left by improper cleaning techniques."

If your "blur" is sufficiently light, you might be able to
use Micro-Gloss alone to eliminate these scratches.


Micro-Gloss is available at many Aquarium supply stores, and
is listed online at FishTankStore.com on this page, about 5th
from the bottom:
http://www.fishtankstore.com/options/accessories.php

It's listed with a price of $0.00, so I don't know what it 
would cost you, but I'd call a few local Aquarium supply
stores first.


Another acrylic restoration kit which is available on line
is listed on micro-Surface.com as the CLEAR SEAS ACRYLIC
RESTORAL KIT, on this page:
https://www.micro-surface.com/default.cfm?page_id=175#13

You'll note that it includes Micro-Gloss as the finishing
touch, but that:
"This kit is designed to restore up to 100 square feet of
 acrylic."

A smaller kit, designed for aquariums, is also listed:
http://www.micro-surface.com/default.cfm?page_id=175#17

This kit is available for $15, as noted on this page:
http://www.micro-surface.com/default.cfm?page_id=90&id=3kaqk&storeid=1

...but it doesn't include the Micro-Gloss, which may be
all you need, again, depending on the depth of the scratches.


I would recommend trying the Micro-Gloss by itself to start,
and see if it is sufficient to your needs. If not, you'll
need to invest in a kit, such as the one above, to take out
the larger scratches, and then finish with the Micro-Gloss.

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sublime1-ga


Searches done, via Google:

"remove scratches" "acrylic aquarium"
://www.google.com/search?q=%22remove+scratches%22+%22acrylic+aquarium%22

MICRO-GLOSS aquarium
://www.google.com/search?q=MICRO-GLOSS+aquarium

very impressed thanks a lot