Under Hood™ Thermal Acoustic Lining


DEI's Under Hood Thermal Acoustic Lining was designed primarily for automotive engine compartments as a way to greatly reduce heat and noise with a simple and easy peel and stick application. Extreme engine heat and noise often is a problem with today's modified vehicles packed with high performance components. Made of ¾" thick, high quality, marine grade acoustical foam with a fiberglass reinforced reflective aluminum skin while the 5 mil acrylic adhesive provides a permanent bond. Under Hood Thermal Acoustic Lining not only insulates the underside of the hood for sound deadening and thermal control, it also protects the vehicle's paint finish. Under Hood Thermal Acoustic Lining can also be used as noise control applications such as on generator boxes and many industrial uses including HVAC applications.

  • Insulate from heat while reducing noise & vibration
  • Self adhesive - peel & stick application
  • Protects paint finishes
  • ¾" thick
  • 32" x 54" (12 sq ft)
  • Temp range: -45°F to 275°F
Radiant Heat Resistance:

Under Hood™ Thermal Acoustic Lining Reviews

Based on 3 reviews

Under hood unsulation

Posted by Dan on Jan 31st 2020

Very good product excellent customer service I used this product to fill the spaces between the frame of hood then covered the hole hood with there 1/2inch black still sticking after a year great sound reduction and my honda element heats up quicker and less noise

Review Under Hood

Posted by Ricardo De La Barra on Nov 19th 2019

Very easy for installation, good adhesive.

Under Hood thermal acoustic lining

Posted by MIke Bales on Nov 27th 2018

I used this on the bottom side of my yamaha golf cart seat to reduce noise and heat. It was fairly easy to install once I made a template. As to its effectiveness, It helped the noise level a small amount, but it appears most of the noise come from below the cart as the engine compartment is open to the road below.

Instruction Sheet:
Warning “WARNING: This product contains a chemical known to the State of California to cause cancer and/or birth defects or other reproductive harm. – www.P65Warnings.ca.gov

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