It looks liek a thin paint.. all black.. doesnt bubble, it drips so make sure you cover everything, your rear window, your rear quarters, your trunk... it dries nicely...
I gutted the trunk, sprayed 2 cans of dynashield, laid the fatmat, then sprayed over with 2 more cans, I have the dynamat license plate, which works great..
I used dynashield its like 19.99 a can i used either 4 or 5..
If i hear a rattle, I'll find it and eliminate it... at least try to.. put it this way you can stand outside me car with the windows down about 2ft-4ft away and the bass will move your shirt.. I dont drive around with it all the way up.. I go to db competitions, shows, etc... As soon as I finish this fiberglass install i'm gona post a How to... 2 15'l7s a motorized amp that pops up all in a fiberglass install, custom painted,... with neons, strobes,, it looks good so far..
http://www.audio-n-more.com/thestore/prods/DY12005.html