3M ISOLOSS LS Polyurethane

What can these foams do for you?

What is 3M ISOLOSS LS Polyurethane?

3m's ISOLOSS LS Polyurethane Foams are low compression set, high density foams generally used for gasketing, sealing, and damping applications. These LS Polyurethane open cell foams include a variety of thicknesses and densities to meet just about all application requirements. 3M's ISOLOSS is a higher quality, lower cost option to Poron prducts.

Multiple densities allow engineers to select from a wide range of consistent force deflection curves so we are able to provide a tailored solution to your application. ISOLOSS features a broad service temperature range that should exceed typical use requirements. The low compression set ensures that the foam maintains its original structure throughout the product's lifecycle.

ISOLOSS Features & Applications

Low Compression Set

The foam rebounds to maintain the same fit, form, and function throughout a product's lifecycle.


Highly shock absorbent, and flame and chemical resistant foams provide strength and longevity in extreme environments and temperatures.

Variety of Thickness & Density

A unique combination of design features allow for custom made solutions for different applications.

Energy Control

From sensitive electronics to earth shaking heavy equipment, protect critical components from impact, shock & vibration.

Gasketing & Sealing

UL Gasket & sealing rated pairs well with 3M Laminating Adhesives.

Cushioning & Support

Soft and supportive foam that conforms to the design and fills gaps to protect equipment.

  • Gasketing
  • Light Duty Sealing
  • Enclosure Seals
  • Gap Filling
  • Shock Absorbing
  • Impact Absorbing
  • Padding
  • Buzz, Squeak, Rattle (BSR)
  • Noise, Vibration, Harshness (NVH)
  • Equipment & Component Mounts
  • Vibration Damping

What Can We Do For You?

At Rapid Die Cut, we pride ourselves on precision, quality, and speed. Our digital manufacturing, die cutting, and in-house tooling capabilities allows us to quickly turn around the most complex parts and deliver prototypes in as quick as 3 days, and full production runs as quick as 7 days.

Our digital system automatically chooses the correct adhesive for your material and 

substrate. We also offer kiss cuts on sheets/rolls for pressure sensitive adhesive lamination.


3M ISOLOSS Polyurethane foams have a wide range of densities and thicknesses that we can tailor to meet your applications specific needs. These foams are great for all sorts of gasketing & sealing applications and feature a low compression set to maintain the same form and fit throughout the product lifecycle.

As a 3M Converter Partner, we are able to provide direct access to 3M support & material specialists all around the globe. We keep inventory of the most popular 3M materials and are able to send out prototypes within 1-3 days, and full production runs with thousands or even millions of parts in as quick as 7 days! 

Learn more about 3M’s ISOLOSS Polyurethane and our in-house processes & services.

Matt Benes

Digital Marketing Lead

Rapid Die Cut - Clinton Township, MI

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