Pyrogel® XT- Flexible Industrial Insulation for High-Temperature Applications
Pyrogel® XT is a high-temperature insulation blanket formed of silica aerogel and reinforced with a non-woven, glass-fiber batting.
Silica aerogels possess the lowest thermal conductivity of 
any known solid. Pyrogel XT achieves this industry-leading thermal performance in a flexible, environmentally safe, and easy-to-use product.
Ideal for insulating piping, vessels, tanks, and equipment, Pyrogel XT is an essential material for those seeking the ultimate in thermal efficiency.
Pyrogel Physical Properties
| Thicknesses* | 0.20 in (5 mm) | 0.40 in (10 mm) |
| Material Form* | 60 in (1,500 mm) wide x 260 ft (80 m) long rolls | 60 in (1,500 mm) wide x 155 ft (47 m) long rolls |
| Max. Use Temp. | 1200°F (650°C) | 1200°F (650°C) |
| Color | Beige | Beige |
| Density* | 11 lb/ft3 (0.18 g/cc) | 11 lb/ft3 (0.18 g/cc) |
| Hydrophobic | Yes | Yes |
| *Nominal Values |
Advantages of Pyrogel XT® XT
Superior Thermal Performance 2 to 5 times better than competing insulation products
Reduced Thickness and Profile Equal thermal resistance at a fraction of the thickness
Less Time and Labor to Install Easily cut and conformed to complex shapes, tight curvatures, and spaces with restricted access
Physically Robust Soft and flexible but with excellent springback, Pyrogel XT recovers its thermal performance even after compression events as high as 100 psi
Shipping and Warehousing Savings Reduced material volume, high packing density, and low scrap rates can reduce logistics costs by a factor of five or more compared to rigid, pre-formed insulations
Simplified Inventory Unlike rigid pre-forms such as pipe cover or board, the same Pyrogel XT blanket can be kitted to fit any shape or design
Hydrophobic Yet Breathable Pyrogel repels liquid water but allows vapor to pass through, helping to prevent corrosion under insulation
Environmentally Safe Landfill disposable, shot-free, with no respirable fiber content
Pyrogel® XT Thermal Conductivity
| Mean Temp. °C | 0 | 100 | 200 | 300 | 400 | 500 | 600 |
| Mean Temp. °F | 32 | 212 | 392 | 572 | 752 | 932 | 1112 |
| k mW/m-K | 20 | 23 | 28 | 35 | 46 | 64 | 89 |
| k BTU-in/hr-ft2-°F | 0.14 | 0.16 | 0.19 | 0.24 | 0.32 | 0.44 | 0.62 |
*ASTM c 177 Results; Thermal conductivity measurements taken at a compressive load of 2 psi.
Pyrogel® XT Specification Compliance and Performance
| Test Procedure | Property | Results |
| ASTM C 165 | Compressive Strength | Stress at 10% strain = 14.8 psi (102 kPa)Stress at 25% strain = 26.6 psi (183 kPa) |
| ASTM C 356 | Linear Shrinkage Under Soaking Heat | < 1.3% @ 1200°F (650°C) |
| ASTM C 411 | Hot Surface Performance | Passed |
| ASTM C 447 | Estimation of Maximum Use Temperature | 1200°F (650°C) |
| ASTM C 592-04 (Section 11.11, Modified) | Heat and Vibration Aging | -0.19% mass change after 6 hr vibration |
| ASTM C 795 | Insulation for Use Over Austenitic Stainless Steel | Passed |
| ASTM C 1101 | Classifying the Flexibility of Mineral Fiber Blankets | Class: Resilient Flexible |
| ASTM C 1104 | Water Vapor Sorption | 2.25% (by weight) |
| ASTM C 1338 | Fungal Resistance of Insulation Materials | Passed |
| ASTM C 1511 | Liquid Water Retention After Submersion | 4% (by weight) |
| ASTM E 84 | Surface Burning Characteristics | Flame Spread Index = 0 Smoke Developed Index = 0 |
| ASTM E 1354 | Cone Calorimetry | No ignition at 50 kW/m2 |
| BS EN 13501-1: 2007 | Reaction to Fire Performance | Passed Euroclass A2 |
| ISO 1182:1990 | Non-Combustibility | Meets criteria outlined in ISO 1182:1990 |
Pyrogel XT Characteristics
Pyrogel XT can be cut using conventional cutting tools including scissors, tin snips, and razor knives. The material can be dusty, and it is recommended gloves, safety glasses, and dust mask be worn when handling matierial. See MSDS for complete health and safety information.
Learn more about Thermaxx Aerogel Insulation Blankets
*Pyrogel is a registered trademark of Aspen Aerogels, Inc.
Information presented herein is typical and representative of material performance. Any and all warranties, either expressed of implied, are disclaimed. All products or materials supplied, including any recommendations or suggestions must be evaluated by the user to determine applicability and suitability for a particular use. Values should not be used directly for specification purposes. Aspen Aerogels, Inc. does not assume any liability for use or misuse of any products produced or supplied. This information replaces all previous information. As a result of the constant development of our products, we reserve the right to make alterations to this information without notice.
