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Thinsulate roll

3M™ Thinsulate™ Acoustic Insulation SM400L

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Upgrade your vehicle’s sound and thermal control with Thinsulate SM400L. Each roll is 5' wide, 1" thick, and sold by the linear foot. Ideal for doors, headliners, and behind plastic panels, Thinsulate is lightweight, moisture-resistant, and easy to install.

Bulk discounts available. Save per linear foot at 10, 15 and 25 linear feet.
$10.00
Covers 5.0 SF
$10.00

3M™ Thinsulate™ Acoustic Insulation SM400L

3M™ Thinsulate™ Acoustic Insulation is perfect for manufacturers, upfitters, and custom automotive professionals looking to elevate the acoustic comfort of their builds. 3M™ Thinsulate™ Acoustic Insulation is engineered to deliver outstanding sound and thermal insulation in wide range of applications like vans, semi trucks, sleeper cabs, RVs and more! Designed for high-performance noise control, this insulation is ideal for use in automotive interiors, including door panels, headliners, wheel wells, pillars, and instrument panels. 

 

Features

  • Superior sound absorption for enhanced noise reduction
  • Excellent thermal insulation
  • Hydrophobic fibers resist moisture, mold, and mildew
  • Versatile use in automotive and other industrial acoustic applications
  • Lightweight, durable, and conformable for easy installation
  • Proudly made in the USA 

 

 

Specs

 Roll Width  5' (60") 
 Thickness   1.00" (Nominal) 
 Density   1.05 lb/cu ft 
 Weight   0.10 lb/sq ft 
 Color   White web with single black scrim 
 Composition   Web: 65% polypropylene + 35% polyester 
 Scrim: 100% polypropylene 
 Thermal Resistance (R-value)   3.8 per inch 
 Field Cutting   Use a fabric cutter with sharp blades or sharp scissors 
 Attachment   P329 Spray Adhesive 

 ** Handling and shipping fibrous materials may slightly compress the material. After hanging or mounting, the material will decompress. **

 

 

Resources

 Spec Sheet   3M™ Thinsulate™ Product Sheet 
 Install Guide   3M™ Thinsulate™ Install Guide 

 

 

Material Testing

Noise Reduction Coefficient

 Frequency (Hz)  125   250   500   1000   2000   4000   NRC 
 3M Thinsulate SM400L   0.08   0.22   0.60   0.98   1.02   0.98   0.70 
 3M Thinsulate SM600L   0.18   0.44   0.96   1.10   0.98   0.90   0.85 

 

 

 

 

 

 

 

Common Product Uses

  • Van Insulation - door panels, headliner, wheel wells, pillars, and wall panels
  • Semi Truck Insulation - door panels, headliner, sleeper cab walls and roof
  • RV Insulation - wall panels, roof panels, door panels
  • Skoolie Insulation - headliner, wall panels

 

Contact us if you have questions!