The Garage - Jeep Soundproofing

The Garage: Jeep Sound Deadening Projects

Popular Jeep Treatment: Spectrum Liquid Sound Deadening

JEEP Wrangler Sound deadening

Spectrum liquid sound deadening has been the go-to product for many Jeep owners for the past 15 years. Because Jeep designs tend to be both really loud and really open, a Spectrum spray on application is a very easy and effective solution.

Spectrum is a water-based acrylic polymer that will stop vibrating panels dead in their tracks, reduce heat transfer, and even lower tire noise when used in the wheel wells. Spectrum can be brushed, rolled, or sprayed on. The average 2-Door Jeep will take about 4-5 gallons for the interior tub (or the full undercarriage). Sound deadening a 4-Door Jeep takes 5-6 gallons. We recommend that Jeep owners apply at least 3mm of total thickness (2-3 layers) to combat the unusually loud tire noises often found in Jeeps.

For premium sound and thermal insulation, go with our Jeep Build Package. The package has Spectrum Spray on Deadener for the vibration damping and heat transfer plus a layer of Luxury Liner Pro mass loaded vinyl to block out the airborne sound waves from the road noise and engine noise.

Like we said... 15 years of Jeep soundproofing. Check out the early 2000's microphone and the grainy video quality, lol. This vehicle is one of the very first Jeeps to ever receive Spectrum liquid sound deadening. Right around 2004/2005.

Part 2 of the Jeep Build - Damplifier Pro is used on the interior metal. Then Luxury Liner Pro added on top as the barrier layer to block out airborne noise. You will have the quietest Jeep on the road if you take this approach.

More Jeep Soundproofing Strategies

Spectrum sound deadening is used in a wide variety of ways, depending on the Jeep and what the owner is looking for. Here's a couple more pics that give you an idea of what your project could look like:

Jeep #1: This Jeep owner sprayed on Spectrum to sound deaden the Jeep's entire interior tub. After masking, this strategy is very quick to execute and looks awesome.
Jeep #2: Spectrum was rolled on with a paint roller in this Jeep. It's just as effective as spraying on for people that would rather not mess with a spray gun.
Jeep #3: Sometimes you just want to add some flare to your Jeep. This project turned out awesome - functional and gorgeous!

Jeep #1: Spray on that Sound Deadening!

Jeep floor after (3) 1mm layers of Spectrum. 2mm is the minimum suggested application. For any vehicle with aggressive treads, we recommended to get to at least 3mm of total thickness.

Jeep #2: A Roller Works too!

Spectrum is just as effective when applied with a roller. When rolling or brushing on, you have to be extra careful to stay at the 1mm layer. If you apply it too thick and don't give Spectrum enough time to cure between layers, it can result in cracks. It works great, but take your time!

Jeep #3: Adding some Style

Some customers like to add a little extra Spectrum to the outside because it looks so good! If you want to apply Spectrum to a high gloss surface like this, you will need to scuff up the metal and apply a primer for Spectrum to make a solid bond.

More Jeep Sound Deadening Projects

JEEP Cherokee SUV Sound dampening package

1995 Grand cherokee

Type of Project: Floor, Ceiling, & Doors

Products Used: 106 Sq Ft of Damplifier Pro Deadener (Floor/Doors/Ceiling)

62 Sq Ft of Luxury Liner Pro Sound Barrier Material (Floor/Cargo Wheel Walls)

48 Sq Ft of Mega Zorbe Hydrophobic Melamine Foam (Ceiling)

34 Sq Ft of OverKill Pro Closed Cell Foam (Doors/Hatch)

Accessories: Spray Adhesive (2 cans), Wooden Roller

2002 grand cherokee

Type of Project: Floor, Doors, & Cargo Area

Products Used: 82 Sq Ft of Damplifier Pro Deadener (Floor/Doors/Cargo Area)

70 Sq Ft of Luxury Liner Pro Mass Loaded Vinyl (Floor/Cargo Walls)

30 Sq Ft of OverKill Pro Closed Cell Foam (Doors/Hatch)

Accessories: Spray Adhesive (4 cans), Wooden Hand Roller

1997 grand cherokee

Type of Project: Cargo Area & Hatch

Products Used: 36 Sq Ft of Damplifier Pro Deadener (Floor/Rear Hatch)

Accessories: Wooden Roller

2016 Wrangler unlimited

Type of Project: Jeep Wrangler Sound Deadening Undercarriage & Wheel Well Sound Deadening

Products Used: 85 Sq Ft of Spectrum Liquid Sound Deadener (Undercarriage/Wheel Wells)

Accessories: Spray Gun, Bottle, Plastiwrap, WireTape

1964 Jeep J200 4 x 4 Truck Soundproofing

1964 j200 4x4 Truck

Type of Project: Roof

Products Used: 7 Sq Ft of Damplifier Pro Deadener

8 Sq Ft of Mega Zorbe Melamine Foam

Accessories: Wooden Roller

1988 wrangler yj

Type of Project: Interior Sound Deadening & Hood

Products Used: 65 Sq Ft of Spectrum Liquid Sound Deadener (Interior Tub/Hood)

10 Sq Ft of Mega Block Melamine Heat Shield (Hood)

Accessories: Spray Gun, Bottle, Plastiwrap, Foil Tape

2022 JEEP GRAND CHEROKEE

Keith S reached out to us about his very noisy 2022 Jeep Grand Cherokee roof. He also wanted to reduce some of the heat he felt coming through. We pointed him to the Large Roof Kit for his project and he was set!

For premium sound and thermal insulation, go with our Large Roof Kit. The package has Damplifier Pro sound deadener for vibration damping and heat transfer plus a choice in layers of either Heat Wave Pro jute or Mega Zorbe melamine foam to absorb the airborne sound waves from the road noise and engine noise while providing excellent thermal insulation.

2022 Jeep GRAND CHEROKEE: ROOF FULL SOUNDPROOFING!

2022 Jeep Grand Cherokee Soundproofing Roof

Jeep Grand Cherokee roof project begins. Look at all that bare metal, no wonder it was so noisy.

LAyer 1: Sound deadeninG

The Large Roof Kit is perfect for the Jeep Grand Cherokee with the 48 sqft of Damplifier Pro for the sound deadening portion of the installation!

layer 2: sound absorption & thermal insulation

2022 Jeep Grand Cherokee Thermal Insulation

Next up, is the Heat Wave Pro in the Large Roof Kit. The kit comes with 48 sqft of this thermal insulation and sound absorbing jute headliner material. This layer completes the two step process for proper sound and heat insulation.

And look at that, a fully skinned roof of the 2022 Jeep Grand Cherokee. Easy enough for the average handy person to install, with all the materials and tools needed in the Large Roof Kit.

2012 wrangler rubicon

Type of Project: Full Jeep Sound Deadening

Products Used: 120 Sq Ft of Spectrum Liquid Deadener (Floor/Doors/Ceiling/Cargo Area)

54 Sq Ft of Luxury Liner Pro Sound Barrier Material (Floor/Doors)

25 Sq Ft of OverKIll Pro Closed Cell Foam (Doors Panels/Hatch)

32 Sq Ft of Heat Wave Pro Jute Car Heat Insulation (Ceiling)

18 Sq Ft Hood Kit with Mega Block Thermal Insulation

Accessories: Spray Adhesive (4 cans), Wooden Roller, Foil Tape, Fury Knife

1999 WRANGLER

Type of Project: Jeep Wrangler Undercarriage Sound Deadening

Products Used: 70 Sq Ft of Spectrum Liquid Sound Deadening (Undercarriage/Wheel Wells)

Accessories: Spray Gun, Bottle

JEEP J20

Type of Project: Ineterior and Exterior Sound Deadening

Products Used: 160 Sq Ft of Spectrum Liquid Deadener (Floor/Doors/Ceiling/Back Wall/Undercarriage/Exterior Body)

Accessories: Spray Gun + 4 Bottles

2022 Wagoneer

Type of Project: Full Interior Soundproofing

Products Used: 140 Sq Ft of Damplifier Pro (Floor/Doors/Cargo Area/Ceiling/Back Hatch)

72 sqft of Mega Zorbe melamine foam DoorsCeiling/Hatch)

66 sqft of Luxury Liner Pro MLV sheets (Floor/Cargo Floor)

Accessories: Roller, Fury Knife, Speaker Tweakers

2019 cherokee overland

Type of Project: Floor, Doors, Cargo Area, & Hood

Products Used: 92 Sq Ft of Damplifier Pro Deadener (Floor/Doors/Cargo Area/Hood)

52 Sq Ft of Luxury Liner Pro automotive MLV (Floor/Cargo Area)

26 Sq Ft of Mega Zorbe Melamine Foam (Doors)

15 Sq Ft of Mega Block Melamine Heat Shield

Accessories: Spray Adhesive (2 cans), Wooden Hand Roller, Foil Tape

2020 Jeep Wrangler Gladiator Soundproofing

2020 WRANGLER gladiator rubicon

Type of Project: Jeep Wrangler Interior Sound Deadening

Products Used: 66 Sq Ft of Spectrum Liquid Sound Deadening (Interior Floor/Firewall/Doors/Back Wall)

44 Sq Ft of Luxury Liner Pro automotive MLV (Firewall/Floor/Back Wall)

22 Sq Ft of Mega Zorbe Melamine Foam (Doors)

Accessories: Double SIded Tape, Speaker Tweakers

Jeep

Type of Project: Full Jeep Sound Deadening

Products Used: 80 Sq Ft of Spectrum Liquid Deadener (Floor/Firewall Both Sides/Undercarriage)

Accessories: Spectrum Spray Tools Bundle

2012 Jeep WRANGLER JK

Type of Project: Jeep Wrangler Interior Sound Deadening

Products Used: 50 Sq Ft of Spectrum Sludge Sound Deadening (Interior Floor/Firewall/Cargo Area)

Accessories: Sludge Thickening Agent

1980 CJ7 renegade

Type of Project: Wheel Well Sound Deadening

Products Used: 20 Sq Ft of Spectrum Liquid Deadener (Wheel Wells)

Accessories: Spray Gun, Bottle, Plastiwrap

2019 Wrangler 4 door

Type of Project: Jeep Wrangler Sound Deadening Package

Products Used: 120 Sq Ft of Spectrum Liquid Deadener (Floor/Doors/Cargo Area)

54 Sq Ft of Luxury Liner Pro Sound Barrier Material (Floor/Doors)

Accessories: Spray Gun, Bottle

Chad's Jeep

Chad went all out on his project with our Jeep Kit. Chad sprayed 6 gallons of Spectrum liquid sound deadener onto the floor, doors, cargo area, and roof. He followed up with the 6 sheets of Luxury Liner Pro for the cabin side firewall, floor, cargo area, and over the wheel well humps. Chad was able to get a 9 db reduction in overall road noise in his Jeep.

Three layers of Spectrum sprayed on the floor and cargo area.

Followed up with Spectrum sprayed on the roof.

The barrier layer, Luxury Liner Pro mass loaded vinyl with infused closed cell foam is the real workhorse when reducing airborne sound from tires, road, engine, and exhaust.