floor sealer

I just replaced my whole floor in my 1970 nova, so i'm curious what type of seam sealer is the best to use for a leak free seal

Lookie here: http://www.eastwood.com/shopping/search/searchresultsmain.jsp?fresh=1&searchType=advanced&iMainCat=0&iSubCat=0&attribute14=0&attribute15=0&attribute16=0&RS=1&keyword=seam+sealer

Seam sealer is available in cans (brushable) or caulk gun cartridges. They have lots of cool stuff at Eastwood.

Auto Body Toolmart has quite a bit of seam sealer (http://www.autobodytoolmart.com/search/search.aspx?keywords=seam+sealer)as well as very low prices. And I like them because they typically ship out their tools the same day you order them.

Carguyy (http://www.autobodytoolmart.com)

Some of your nearest high end auto parts stores sell seam sealer.The nearest Auto Value parts store does in my area since they sell auto body supplies too.