Novus 1-2-3 plastic polishing kit

I have a fairly scratched up 93 tank I purchased off CL that is made of acrylic. I want to restore it to like new clarity with no water inside and have purchased the 3 bottle 8 ounce kit by Novus.

My question to anyone who has had great success making an old acrylic look showroom, what besides the Novus kit is needed in preparation like wet/dry sand paper grits, and what type. for example would I use corpus cloth wet, sand embedded sponge, electric sander and what grits before using Novus 3? Also amount of material, will the Novus 8 ounce kit (largest) be enough for a 93 5' long x18 tall" tank?

Your expertise would be greatly appreciated as this is my very first attempt at plastic scratch removal.

How and what type sand paper did you use? Im thinking of those sponge blocks that are embedded with different grit sand paper. Did you use a strait stroke or circles?

Thanks

One thing I learned about toxicity as a responder is that with the exception of radioactive materials almost anything can be detoxified to acceptable levels. "The solution to pollution is dilution" so a little contamination never concerns me as long as I rinse well and repeatedly.

Well I bout some supplies but again forgot to ask for my 10% discount at HD:shakehead:. Oh well next time.

Update. Did a little reading on how to clean acrylic sheet for polishing and manufacturers recommended mild soap detergent but no cleaners so I used 1/2 ounce of auto wash detergent (pretty mild) in 2.5 gallons of warm water with a new microfiber towel warped around a new toilet brush . The microfiber really sticks to the bristles and the toilet brush has a very natural angle for reaching and cleaning like a human hand.

After cleaning out all the residue I was able to see what I was faced with and as suspected the back is in better condition then the front. I also noticed that I was mistaken about the acrylic thickness as only the top and bottom panels are 1/4", but the front wrap-around and back panels are 3/8".

There are only 3 spots of concern, two bottom corner chips and one spreading crack from the corner of the top panel where the privious owner enlarged the back filter slot with what appears to be a dull shoehorn.

Tomorrow I start polishing but tonight I left the tank with 2 gallons of water tilted to the side where the two bottom corners are chipped to verify no leaking. Im planning after I have finished all polishing to sandpaper the inside of those 2 bottom corners (photo below) and apply silicone used for plastics. Also a drill hole to intersect the top panel crack (photo below) and 1 inch top and bottom acrylic patch.

Any thoughts, concerns or recommendations on doing that?

Well no water leaked out of those 2 corners that had water over-them over night, not even when I used tissue paper where they damp. So we are ready to fire up the buffer with Novus 3. Oh my here goes something!:uhoh: