Archive: Jun 2018

Finding the Right Insulation Cover Material

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Insulation blankets (also known as insulation covers or insulation jackets) come in a variety of material options, some of which are better suited to certain tasks and environments than others. You need to ensure that your chosen material can meet the demands of your specific application as efficiently as possible.

Our quick guide to the most common insulation materials can ensure that you have the information you need to make an informed decision regarding the right insulation solution for your particular situation, while saving you time and money down the line.

Material Advantages Disadvantages
General Insulation Materials
Fiberglass
  • Odorless
  • Doesn’t cause corrosion in metals
  • Temperature limit of 1200°F (649°C) leaves it poorly suited to higher temperature applications
CMS Wool
  • Temperature limit of 2192°F (1200°C)
  • Odorless
  • Slightly more expensive than fiberglass
Mineral Wool
  • Low moisture absorption
  • Excellent thermal resistance
  • Shares the same temperature limits as fiberglass
Aerogel
  • Top-of-the-line insulation material
  • Very expensive
Outer Covers
Aluminized Fiberglass or Mirrored Fiberglass
  • Maintains structural integrity at temperatures up to 1000°F (538°C)
  • Aluminum coating breaks down at 450°F (230°C)
Heavy Duty Silicone
  • Ideal for challenging outdoor applications where resistance to wear and tear is necessary
Stainless Steel Laminate Fiberglass
  • Perfect for applications that require high resistance to oil, chemical, and fire
  • Very expensive
Inner Liners
Stainless Steel Mesh 304
  • Temperature range up to 1200°F (649°C)
Stainless Steel Mesh 309,316
  • High temperature range of 1800°F (982°C)
Stainless Steel Mesh Foil with Mesh Cover
  • Same as 309 but offers fluid barrier
Stainless Steel Mesh Inconel
  • Top-of-the-line liner with high temperature range of 2300°F (1260°C)
  • Very expensive
Outer Cover & Inner Liner
Silicone Impregnated Fiberglass
  • Standard outer cover for most applications
  • Can serve as inner liner at temperatures greater than 500°F
PTFE Coated Fiberglass
  • Effective alternative to silicone in paint, food, and chemical applications thanks to broad chemical resistance
PVC
  • Low cost alternative to silicone and PTFE
Fiberglass HT
  • Non-coated fabric used as outer cover and inner liner when temperatures exceed 500°F (260°C)
Silica
  • Multi-use, non-coated fabric
  • Great in temperatures greater than 1300°F (982°C)
  • More expensive
Fastening Systems
Stainless Steel Lacing Wire with Rivets
  • Withstands high heat (1200°F/649°C)
  • More cost-effective than other options
Silicone Straps with Buckles/Rings
  • Can be quickly installed and removed
  • Has a lower temperature limit (500°F/260°C)
Kevlar Straps with Buckles/Rings
  • Greater durability and higher temperature limit (700°F/371°C) than silicone
  • More expensive
Stainless Steel Mesh Straps with Buckles/Rings
  • Rugged top-of-the-line system with a high temperature limit (1200°F/649°C)
  • More expensive
Springs
  • Easily assembled and removed
  • High temperature limit (1200°F/649°C)
Snaps
  • Very similar to springs
  • Poorly suited to curved surfaces and low volume applications
Velcro (polyester)
  • Easily applied and removed
  • Very low temperature limit of 200°F/93°C
Nomex Velcro
  • Similar to standard Velcro, but has a slightly higher heat threshold (280°F/138°C)
Stainless Steel Velcro hooks with Nomex Velcro Fasteners
  • ess sensitive to dirty environments than other Velcro products
  • Somewhat expensive

It can be a challenge to find the right insulation blanket, cover, or jacket. Fortunately, the experts at Firwin are ready to help you choose the correct insulation material or combination for your application. Read our free eBook to learn about everything you should look for in your insulation blanket supplier.

Why Choose Firwin?

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With over 30 years of experience in the field, Firwin is proud to be a premier manufacturer of removable insulation blankets and permanent composite Hard Coat™ insulation solutions.

Our business was built on our commitment to provide our customers with the best insulation solution for their particular situation, and it’s from this strong foundation that we’ve emerged as a leading insulation solutions provider for companies across a diverse range of industries.

Firwin’s Key Capabilities

  • Custom insulation products — Firwin offers various permanent and removable thermal solutions. Our product inventory includes removable insulation blankets, Thermo-Wrap™ insulation covers, metal foil, and Hard Coat™ composites.
  • Insulation solutions for a variety of industries — Firwin creates reliable, practical products for many different industries, from power generation and mining to military and marine.
  • Diverse insulation applications — Our products are used for various applications, such as exhaust piping covers, silencer insulation, engine insulation, turbines, industrial solutions, and vehicle insulation.
  • Stocked insulation and safety products — Insulation material, tapes, sleeves, hose wraps, spray shields, and sound attenuation solutions are among our most popular stocked products.

Technical Capabilities

Firwin adheres to the highest standards of design and manufacturing, and we invest in the best technology available today. Here’s a breakdown of our key technical capabilities and resources:

  1. Team of skilled engineers
  2. Design processes using software programs including AutoCAD and SolidWorks
  3. Computer-controlled cutting

OEM Capabilities

We understand the unique needs of growing OEMs. When Firwin creates a custom insulation solution for a client, we ensure:

  • Designs are scalable for shifting manufacturing capacities
  • Detailed pricing matrices and catalog lists are kept on hand by our responsive sales team
  • Product support is at your fingertips

Case Studies

For a better illustration of how Firwin helps our customers, a couple of case studies are outlined below.

Ship Lagging Overhaul: A Marine Application

  • Problem — A fleet of drill ships was experiencing torn exhaust lagging, or insulation. The customer wanted Firwin to construct removable insulation blankets that would meet specific size and thickness specifications set by the customer. Rather than just produce blankets to a specific spec without knowledge of the components they were meant to cover, Firwin encouraged the customer to share more of their product details and allow Firwin’s engineers to determine the most appropriate blanket design that would best meet the customer’s needs; the customer agreed.
  • Solution — Firwin’s design team prepared two options for the customer, both elegant solutions that would cover both the exhaust flex and upper/lower flanges while meeting the customer’s specifications: 1) a single blanket that would cover the flex and the flanges (similar to the client’s original solution), and 2) a three-blanket solution, in which separate blankets would be made for the flex and flanges. The customer chose the three-blanket solution, as it would provide more flexibility and greater ease of use.

Heat Flow Analysis and Containment: A Non-OEM Application

  • Problem — A company needed to insulate a silencer located in their in-house testing room as they were concerned about its high heat generation within the limited space. To assess how much insulation would be required to properly protect the equipment, Firwin conducted a heat flow analysis.
  • Solution — Using new flow simulation software, a dramatic improvement over past technology, the Firwin team was able to use accurate data validation to inform the client’s insulation decision. Firwin’s heat flow analysis indicated that only the top of the silencer needed to be insulated to achieve the desired heat containment. The client moved forward with insulating the recommended portion of the equipment and successfully reduced the silencer’s heat generation, without needlessly spending money on blankets for the entire silencer body.

Find the Custom Solution You’ve Been Looking For

Beginning as a small family business, Firwin has grown to become an industry leader in custom insulation products for wide-ranging industrial applications across the world.