How do you fix a plastic radiator for a 1995 Chevy Corsica?

A two part epoxy for $3.00 should do the trick, just follow the directions. I did mine two years ago and I run antifreeze/coolant.

See: http://www.urethanesupply.com/radiator.html

I have a crack in mine as well with a slow leak, my mechanic on a cadillac had the same problem and had to be replaced. If you have a better answer let me know. FYI I did find one on

http://www.partstrain.com/products/Radiator/1995~CHEVROLET~CORSICA.htm

for $119.00 plus a little freight

I went to a radiator shop and they have a proses they use to fix them i got mine done for $50.00