it all depends on the type of seam is is....some look better with a flowable " drip check " type of sealer like where the quarters seam in the trunk opening area near the sail panels. Then other seams like where inner wheel housings " tubs" meet the floor and in the firewall and floor area seal up very well with 3M ultra pro urethane seam sealer( this stuff is the SHIT)... the only down side is that it needs a special applicator gun PN 08398. This 3M stuff is the best i have ever used and is heavy bodied enough to booger up fairly large gaps.