---
title: 3M™ FRB Series, UL 94 5VA Flame Rating | Marian Inc.
description: The 3M™ Flame Barrier FRB Series is flexible insulation for OEM electrical flame barrier applications.  It offers a UL 94 5VA Flame Rating.
image: https://blog.marianinc.com/hs-fs/hub/330082/file-1460683169.png
---

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Flexible Solutions

# [3M™ FRB Series, UL 94 5VA Flame Rating](https://blog.marianinc.com/blog/3m-frb-series)

Posted by [Katie Sullivan](https://blog.marianinc.com/blog/author/katie-sullivan)

 November 11, 2014 9:00 AM

## 3M™ FRB contains unique properties and has the ability to enhance your applications.

The 3M™ Flame Barrier FRB Series is thin, flexible insulation made primarily of inorganic materials and is used in thermal management applications. FRB provides very high flammability and ignitability resistance, excellent arc and track resistance, good dielectric strength, and good thermal performance to safely contain electrical hazards. When compared to other material options, FRB saves cost and weight in end-use applications.

This thermal management material is easily converted: [slit](https://marianinc.com/capabilities/slitting/), [die-cut](https://marianinc.com/capabilities/die-cutting/), and/or [laminated](https://marianinc.com/capabilities/lamination/) to fit the requirements of your specific design.

 

#### ![3M-Flame-Barrier-FRB-Material](https://blog.marianinc.com/hs-fs/hub/330082/file-1460683169.png?width=150&name=file-1460683169.png)**Key Material Characteristics**

- UL 94 5VA flame rating
- Excellent ignitability resistance
- Excellent arc and track resistance
- Good dielectric strength
- Dimensionally stable
- Thermal index of 130°C
- Very lightweight and ultra-thin, saving cost and weight in final application
- Available in white and black for optimal optical and aesthetic results
- Smooth surface for improved tape adhesion
  
  #### **Applications**
- General purpose lighting luminaires (including LEDs)
- Electric and hybrid vehicles (between batteries, power converters, etc.)
- [Appliances](https://marianinc.com/wp-content/uploads/2024/07/Marian-Solutions-for-Appliances-WEB-072324.pdf) (vacuum cleaners, slow cookers, etc.) 
    - Electrical devices

### How does FRB compare to competitive materials?

- Mica-based materials: A limited number of mica-based materials meet UL95 5VA flame ratings. Such mica-based materials do not convert well. Mica shards easily break off during the cutting process
- Glass plate: Bulky, heavier, and more expensive
- Flame retardant plastic lens: Bulky, heavier, and more expensive

---

#### DOWNLOAD - Material Spotlight: 3M FRB

[![3M FRB](https://blog.marianinc.com/hs-fs/hubfs/3M%20FRB-1.png?width=301&name=3M%20FRB-1.png)](https://marianinc.com/wp-content/uploads/2024/07/Material-Spotlight-3M-FRB-WEB-072624.pdf)

 

---

#### Marian and 3M

Marian and 3M have a long partnership. Marian is proud to be a [3M Preferred Converter](https://marianinc.com/about-us/partnerships/3m/). This means that we have been selected by 3M as one of their **top converter partners**. This status is earned over time by establishing a strong relationship with 3M, demonstrating expertise in both 3M products and converting processes, and by successfully manufacturing solutions for customers using their innovative materials.

[**Contact us**](https://info.marianinc.com/contact-us) today for a sample.

 

[![Contact Us](https://no-cache.hubspot.com/cta/default/330082/50af1808-237f-48fb-b2c2-c8b634fbef23.png)](https://cta-redirect.hubspot.com/cta/redirect/330082/50af1808-237f-48fb-b2c2-c8b634fbef23)

 

Visit the [3M Site](https://www.3m.com/) to learn more about this material. Download the datasheet on our [datasheets page](https://marianinc.com/data-sheets/).

 Topics: [Thermal Management](https://blog.marianinc.com/blog/topic/thermal-management)

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