[Y-Blockhead]

Originally Posted by 30 Closed Cab PU

Adhesive types - any concerns when used in door/body cavities of holding moisture?

I had thought about that also. The Dynamat REALLY sticks and if you pay attention to sealing it, especially around the edges, I don't see how moisture could get behind it (but I suppose anything is posible). They sell a little wooden roller to seal it flat.

Also in the pictire below, you can see the top of the Dynamat is above the bottom of the window so any water getting past the window seal will flow on the outside of the Dynamat.

And lastly, it doesn't rain much in SoCAl. And when it does I don't drive the Ol' Girl.