Primer from old paint on my build?

[bigsal51]

I was sanding my 250gal tank down and taking all the old paint off and it was hard to remove all the way down to the metal. There is a thin amount of redish primer on it and I was wondering if I had to take it down to the metal?. alot of the tank I could but geting to the sides of it where it want exposed to the element that much it is hard to come off. Should I through it again with a higher grit or finer that is. I was using a 40 and 80 grit 4 1/2 disk.

 

[bigsal51]

This is what i am talking about.

 

[Nick Prochilo]

Sand blast it!

 

[hogmeat]

i agree with nick sandblasting would be alot quicker and easier.

 

[Smokey_Joe]

A good thick heavy coat of this...
http://www.acehardware.com/product/inde ... Id=1276736
will get it off also if you
do not have access to a sandblaster.
I myself own a blaster and prefer sandblasting, but I have
used Zip Strip before and it works very well.