Sounds good, a little pricey though:
Application
Environmentally friendly, water-based
May be sprayed, brushed or rolled on
One 2-gallon container covers 46-50 sqft @ .040"(about thickness of credit card)
Can cover hard to reach places like inner door panels
Cleans up with soap & water
No respirator needed; paper dust mask and protective eyewear
recommended
Minimal splashback or overspray
Performance
Reduces engine and solar heat transfer by 25-30°F.
Reduces noise by 10-12 decibels
Forms continuous airtight, waterproof membrane
Can be sanded, primed and painted
Used under fenders to eliminate starring
Withstands temperatures to 500°F.
Price: MSRP $185.00 per 2-gallon package plus shipping