Category Archive: fiberglass insulation blankets

Choosing the Right Material for Your Insulation Blankets – Part 2: General Insulation Materials

We have already discussed the criteria that need to be analyzed when choosing the correct insulation blanket material. With that out of the way, now it is time to look at the actual insulation materials typically found in insulation blankets.

  • Fiberglass – This classic insulation material is used in most standard insulation blanket applications. It is odorless, does not contribute to metal corrosion, is excellent at sound absorption, and resists decay, mold, and vermin. Fiberglass has a temperature limit of 1200°F (649°C), so it is not right for higher temperature applications.
  • CMS Wool – This material is slightly more expensive than fiberglass, but it has a much higher temperature limit of 2192°F (1200°C). It’s also odorless, does not contribute to metal corrosion, is excellent at sound absorption, and can withstand decay, mold, and vermin.
  • Mineral Wool – The big plus of mineral wool is its low moisture absorption qualities and excellent thermal resistance. Its temperature limits are the same as fiberglass, and it is a decent sound and vibration absorber. It is also slightly more economical than fiberglass.
  • Aerogel – This is the top-of-the-line when it comes to insulation materials. It is superior to both fiberglass and CMS wool and is ideal for a limited clearance application or where blanket weight is a concern. In fact, ½” thick Aerogel has the same properties as 1.5” thick fiberglass. As you might expect, it also carries with it a top-of-the-line price tag. It also has a slightly lower temperature limit of 1100°F (600°C).

Stay tuned for Part 3, where we cover the different materials available for your insulation’s outer and inner covers.

Choosing the Right Insulation Blanket Supplier

Did You Know Our Fiberglass Insulation Blankets Are UL-Certified?

Are you involved in any projects or processes with or requiring UL-certification? If so, then it is necessary that all components of that project or process need to be UL-certified, including insulation blankets. For instance, if you’re building a generator set – a process that is specified as requiring UL certification—you’ll need UL-certified insulation blankets. Here at Firwin, our fiberglass insulation jackets meet this requirement. 

Firwin’s fiberglass insulation blankets are used to insulate engine parts, exhaust piping and components, and industrial process piping and machinery. They’re used in just about every industry requiring insulation blankets to manage heat generated by various industrial processes, and if UL-certification is required, Firwin’s fiberglass insulation covers have got you covered. They’re fire-resistant, they can withstand extremely high temperatures, and they’re all UL-certified.

What does UL certification mean? According to the UL website, UL-certification is defined as “a process that determines that the source, substance, quality, manufacture, performance, described features, precision, ruggedness or other characteristics of a product or service meets the standard/s, code or criteria developed for that product or service.”

The UL website also says, “Dedicated to promoting safe living and working environments, UL helps safeguard people, products and places in important ways, facilitating trade and providing peace of mind.” At Firwin, we share this same dedication, and with our fiberglass insulation covers– all UL-certified – we help to promote fire safety practices in all industries.