found this:



1 avg. hood coverage
The Hoodliner's "Sound Soaker" foam absorbs engine noise, delivering a quieter listening environment in your vehicle. In addition, the Hoodliner's 1 mil. reinforced aluminized skin creates a water/oil barrier that reflects up to 97% of radiant heat to protect the hood's paint finish. Contains one 32" x 54" piece of Dynaliner for under the hood of your vehicle. For best performance, use with Dynamat Xtreme