Hood Insulation

Upgrade Your Hood Liner to Increase Hood Insulation and Soundproofing

Upgrade Your Hood Liner to Increase Hood Insulation and Soundproofing

Although a roaring engine can be fun at a car show or a day at the track, it doesn’t mean you want to announce your arrival to the neighborhood every time you pull in your driveway. But insulation and soundproofing isn’t just for your neighbors, the right materials can help you protect your paint and climate control your vehicle.

The hood is often forgotten area when it comes to your vehicle. We get it, no one’s sitting there, none of your stuff is in there, why would you worry about it? Well, think about all that’s going on under the hood, all that heat and sound can easily make it’s way into your cabin - affecting your comfort.

Let’s talk about how insulating and soundproofing your hood can help improve your ride.

Although a roaring engine can be fun at a car show or a day at the track, it doesn’t mean you want to announce your arrival to the neighborhood every time you pull in your driveway. But insulation and soundproofing isn’t just for your neighbors, the right materials can help you protect your paint and climate control your vehicle.

The hood is often forgotten area when it comes to your vehicle. We get it, no one’s sitting there, none of your stuff is in there, why would you worry about it? Well, think about all that’s going on under the hood, all that heat and sound can easily make it’s way into your cabin - affecting your comfort.

Let’s talk about how insulating and soundproofing your hood can help improve your ride.

Free USA shipping
Free USA shipping

Popular Hood Insulation & Sound Deadening Materials


Mega Block™ Insulating Heat Shield
Damplifier Pro™ Deadening Mats
Thermal Block™ Heat Shield

Why Install Under Hood Insulation?

Car Hood Insulation Will Make YouR Vehicle Quieter

The most obvious reason to use soundproofing materials under your hood is to make your vehicle quieter. We know, we know – some of you are thinking, “but I want my engine to be loud!”. Listen, there’s a time and a place to hear your baby roar and frankly, your daughter’s little league softball game isn’t one of them. Applying sound deadener to your hood won’t stop your engine from strutting its stuff, but it will stop the rattling metal from competing with the engine’s purr. And then by combining sound deadening with foam insulators, you’ll have have more control over the sound leaving your vehicle. Your audio system will sound better. You’ll have less overall noise in your cabin if you want to be heard. And if you still want to hear let that baby loose, pop the hood and let ‘er rip!

put insulation under the car hood

Hood Liner Controls Temperature and Protects Paint

Adding thermal insulation has several benefits.

  1. Protect your paint by keeping the hood cool and protected from the heat of your engine.
  2. More insulation means better heat control. Insulation absorbs heat in addition to slowing its movement.
  3. Keep heat from the sun on a hot day from getting into your engine, allowing your A/C to start cold faster and helping keep one more heat source out of your engine bay.

Who Should Consider Under Hood Insulation?

Upgrading or replacing your under hood insulation is more likely to be a good investment for you if one of the following describes your situation.

  • A larger or louder than average engine
  • Upgraded engine parts
  • Custom paint or decals on the hood
  • A hot rod or newly restored vehicle
  • A high-performance vehicle
  • High average temperatures where you live
  • Excessive heat inside the car cabin (also should consider car firewall insulation)

How to Install Hood Insulation in Your Car

Step 1: Remove

Remove the factory hoodliner. Although you won’t need to reapply it, keep it intact for step 3.

Step 2: Clean

Clean the metal hood with denatured alcohol thoroughly. Getting rid of any dust, dirt, and grime will make the material stick better and be more effective. The adhesive is very strong, but we are always extra cautious when working under the hood. The last thing you want is for something to fall down into the engine.

Step 3: Apply Sound Deadening Material

Use your factory hoodliner to create an outline for your Damplifier Pro sound deadener. You can also choose a spray on sound deadener like Spectrum. The underside of your hood probably contains a lot of dips and divots. If needed, leave your sound deadening mat in the sun for a few minutes to make it more pliable. Use a metal roller to firmly apply your the mat and roll out any air bubbles. Be wary of how much of the hood you cover. Make sure it still closes properly.

Step 3: Apply Insulating Material / Heat Shield

Use the outline from earlier to cut your heat insulation material. You have a few options here.

  • Thermal Block: An excellent heat shield that is highly reflective of radiant heat. This is our thinnest heat shield (1/4”), but it doesn’t provide great insulation.
  • Heat Wave Pro: A 3/8” thick jute material that provides some sound absorption and thermal insulation and is surrounded by a reinforced foil to reflect heat.
  • Mega Block: A premium thermal insulator (1/2” thick) that also acts as a great heat shield.

Use scissors to cut your material to size, preferably serrated scissors. A razor blade may tear the edges of the foam or jute if it isn’t very sharp.

Step 5: Tape and Secure

Tape up all seams and edges with a high temperature foil tape, this will help keep everything in place and keep the edges from fraying. This is an especially important step for extreme heat use cases. Use any clips or fasteners under the hood as additional support to support your insulation and/or heat shield. Better safe than sorry!

Install Like a Pro

  • Wear gloves when handling Damplifier Pro.
  • Always ensure 2” of clearance between the engine and any material you’re installing.
  • Use a roller to press butyl sheets on for proper bonding. Any air bubbles will substantially reduce damping performance.
  • To keep sound out of the cabin you’ll need to add a sound blocking material to the cabin-side firewall. To stop turbo or diesel noises, use Luxury Liner Pro MLV.

Making Sure You Find the Right SOlution

These materials can be used in a variety of different ways for a variety of different problems. Every car and every person is different, and the only thing we love more than cars are the people who love their cars. Give us a call and we’ll help you find the right materials to keep you and your car happy.

Hood Kits!... Hood Kits!... Get Your Hood Kits Here!!

If you’re looking for the quickest and easiest way to get maximum results, take a look at a Second Skin Hood Liner Kit. We've built these kits to make as easy as possible for you to get exactly what you need to get the job done. Each Hood Insulation Kit includes soundproofing and thermal insulation materials for your hood as well as adhesives and tools to make the job a cinch.

  • Damplifier Pro is the first material to go onto the hood. The sound deadener will stop your hood's vibrations, reducing noise in the cabin.
  • We have a variety of heat shields that can be used as a replacement hood liner. Choose between Mega Block (our top of the line hydrophobic melamine foam) and Heat Wave Pro (a high-performing recycled jute material). Both have a reflective foil barrier to reject radiant heat and keep your hood as cool as the other side of the pillow.
  • Free Shipping and Made in the USA

Learn More with Our Ultimate Car Insulation Guide