cheap tent light leak repairs

So of course being a cheap bastard I got a cheap tent off ebay, It's a gro medics. Yes it's got some manufacturing light leaks. What I did was get me a can of rustolem flex seal for 6.88 and sprayed all the seams no more leaks and appears to be holding well. anyone else try this or have a better ideal besides tape?

I had a tube of black caulking that I used on my seams. Make sure you wet your finger and pack it good

Better idea: choose a quality tent. The cheap ones are cheap for a reason. Don't waste your money...

duck tape dude..seriously just find the leak and fix it