The name escaped me earlier, but there is also this stuff... E6000 craft adhesive. http://www.amazon.com/E-6000-237032-...6507683&sr=1-1
It is really cheap at just over 3 bucks for 2 ounces...and seals really well, but it is a solevent (polystyrene, I think)and it stinks for a while. The fumes are toxic while it is drying too. It is THICK, so it can go on thick, and it self levels and dries in 30 minutes or so. I seam sealed a WHOLE FLEET of backpacking tents one day and I think I lost quite a few brain cells from smelling it. It worked well, though. It has no applicator tip, so I cut down the bristles of an old paintbrush, so the bristles were stiff, and I just brushed it on. Here is a link to the specs http://www.gluguru.com/Sealants.htm#e6000
Has anybody else use this? I looked online and I did not see much about it.