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About Selecting Thermal Insulation
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Rigid Mineral Wool Insulation Sheets
- Max. Temperature: 1200° F
- Heat Flow Rate: See Table
- Density: 8 lbs./cu. ft.
- Color: See Table
- Specifications Met: See Table
These durable sheets resist compression and are often used in oven and power-generating applications. To use outdoors, add metal jacketing.
Sheets with wire-mesh reinforcement withstand extreme shock and vibration.
Sheets with foil facing reflect heat. The foil facing is also known as foil scrim kraft (FSK).
Flame-resistant sheets meet ASTM E84 0/0 for flame and smoke.
| Thick. | Wd. | Lg., ft. | R Value | Heat Flow Rate | Color | Flexibility | Performance Properties | Specifications Met | Each | |
Sheets | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1" | 24" | 4 | 4.3 | 0.23 Btu @ 75° F | Green | Semi-Rigid | Flame Resistant | ASTM E84 0/0 for Flame and Smoke | 0000000 | 000000 |
| 1 1/2" | 24" | 4 | 6.5 | 0.23 Btu @ 75° F | Green | Semi-Rigid | Flame Resistant | ASTM E84 0/0 for Flame and Smoke | 0000000 | 00000 |
| 2" | 24" | 4 | 8.7 | 0.23 Btu @ 75° F | Green | Semi-Rigid | Flame Resistant | ASTM E84 0/0 for Flame and Smoke | 0000000 | 00000 |
| 3" | 24" | 4 | 12.6 | 0.24 Btu @ 75° F | Beige | Semi-Rigid | Flame Resistant | ASTM E84 0/0 for Flame and Smoke | 0000000 | 00000 |
| 4" | 24" | 4 | 16.8 | 0.24 Btu @ 75° F | Beige | Semi-Rigid | Flame Resistant | ASTM E84 0/0 for Flame and Smoke | 0000000 | 00000 |
Sheets with Wire-Mesh Reinforcement on One Side | ||||||||||
| 1" | 24" | 4 | 4.3 | 0.23 Btu @ 75° F | Green | Semi-Rigid | Flame Resistant | ASTM E84 0/0 for Flame and Smoke | 0000000 | 00000 |
| 1 1/2" | 24" | 4 | 6.5 | 0.23 Btu @ 75° F | Green | Semi-Rigid | Flame Resistant | ASTM E84 0/0 for Flame and Smoke | 0000000 | 00000 |
| 2" | 24" | 4 | 8.7 | 0.23 Btu @ 75° F | Green | Semi-Rigid | Flame Resistant | ASTM E84 0/0 for Flame and Smoke | 0000000 | 00000 |
| 3" | 24" | 4 | 12.5 | 0.24 Btu @ 75° F | Green | Semi-Rigid | Flame Resistant | ASTM E84 0/0 for Flame and Smoke | 00000000 | 00000 |
| 4" | 24" | 4 | 16.5 | 0.24 Btu @ 75° F | Green | Semi-Rigid | Flame Resistant | ASTM E84 0/0 for Flame and Smoke | 00000000 | 00000 |
Sheets with Wire-Mesh Reinforcement on Two Sides | ||||||||||
| 1" | 24" | 4 | 4.3 | 0.23 Btu @ 75° F | Green | Semi-Rigid | Flame Resistant | ASTM E84 0/0 for Flame and Smoke | 0000000 | 00000 |
| 1 1/2" | 24" | 4 | 6.5 | 0.23 Btu @ 75° F | Green | Semi-Rigid | Flame Resistant | ASTM E84 0/0 for Flame and Smoke | 0000000 | 00000 |
| 2" | 24" | 4 | 8.7 | 0.23 Btu @ 75° F | Green | Semi-Rigid | Flame Resistant | ASTM E84 0/0 for Flame and Smoke | 0000000 | 00000 |
| 3" | 24" | 4 | 12.5 | 0.24 Btu @ 75° F | Green | Semi-Rigid | Flame Resistant | ASTM E84 0/0 for Flame and Smoke | 00000000 | 00000 |
| 4" | 24" | 4 | 16.5 | 0.24 Btu @ 75° F | Green | Semi-Rigid | Flame Resistant | ASTM E84 0/0 for Flame and Smoke | 00000000 | 000000 |
Sheets with Foil Facing | ||||||||||
| 1" | 24" | 4 | 4.3 | 0.24 Btu @ 75° F | Green | Semi-Rigid | Flame Resistant | ASTM E84 0/0 for Flame and Smoke | 00000000 | 00000 |
| 1 1/2" | 24" | 4 | 6.5 | 0.24 Btu @ 75° F | Green | Semi-Rigid | Flame Resistant | ASTM E84 0/0 for Flame and Smoke | 00000000 | 00000 |
| 2" | 24" | 4 | 8.7 | 0.24 Btu @ 75° F | Green | Semi-Rigid | Flame Resistant | ASTM E84 0/0 for Flame and Smoke | 00000000 | 00000 |
| 3" | 24" | 4 | 12.5 | 0.24 Btu @ 75° F | Green | Semi-Rigid | Flame Resistant | ASTM E84 0/0 for Flame and Smoke | 00000000 | 00000 |
| 4" | 24" | 4 | 16.5 | 0.24 Btu @ 75° F | Green | Semi-Rigid | Flame Resistant | ASTM E84 0/0 for Flame and Smoke | 00000000 | 00000 |
Polyurethane Foam Insulation Sheets with Perforated Facing
- Temperature Range: -20° to 200° F
- Heat Flow Rate: 0.3 Btu @ 75° F
- Density: 2 lbs./cu. ft.
- Color: Black
- Specifications Met: FMVSS-302
The perforated vinyl facing allows moisture to evaporate and resists cracking and fading. These flexible sheets are good for insulating large enclosures.
Abrasion-Resistant Silicone Foam Insulation Sheets
- Temperature Range: -65° to 390° F
- Heat Flow Rate: 0.39 Btu @ 75° F
- Density: 13 lbs./cu. ft.
- Color: White
- Specifications Met: UL 94 HF-1, UL 94 V-0
The fiberglass facing on these flexible silicone foam sheets protects against highly abrasive conditions and resists tearing. Install with contact adhesive (sold separately).
Abrasion-Resistant Rigid Calcium Silicate Insulation Sheets
Made of high-strength calcium silicate, these durable sheets withstand high temperatures and are often used in power-generating applications.
Sheets with a density of 40 lbs./cu. ft. can be machined.
Sheets with a density of 55 lbs./cu. ft. stand up to heavy compression.
Flame-resistant sheets meet ASTM E84 0/0 for flame and smoke.
- Max. Temperature: 1200° F
- Heat Flow Rate: 0.73 Btu @ 800° F
- Color: Gold
- Specifications Met: ASTM E84 0/0 for Flame and Smoke
| Wd. | Lg., ft. | R Value | Flexibility | Performance Properties | Pkg. Qty. | Pkg. | |
1 1/2" Thick. | |||||||
|---|---|---|---|---|---|---|---|
| 6" | 3 | 2.1 | Rigid | Abrasion Resistant, Flame Resistant | 2 | 0000000 | 000000 |
| 12" | 3 | 2.1 | Rigid | Abrasion Resistant, Flame Resistant | 2 | 0000000 | 00000 |
2" Thick. | |||||||
| 6" | 3 | 2.7 | Rigid | Abrasion Resistant, Flame Resistant | 2 | 0000000 | 00000 |
| 12" | 3 | 2.7 | Rigid | Abrasion Resistant, Flame Resistant | 2 | 0000000 | 00000 |
| 18" | 3 | 2.7 | Rigid | Abrasion Resistant, Flame Resistant | 2 | 0000000 | 000000 |
- Max. Temperature: 1700° F
- Heat Flow Rate: 0.8 Btu @ 800° F
- Color: White
- Specifications Met: ASTM E84 0/0 for Flame and Smoke
| Wd. | Lg., ft. | R Value | Flexibility | Performance Properties | Each | |
1/2" Thick. | ||||||
|---|---|---|---|---|---|---|
| 12" | 1 | 0.6 | Rigid | Abrasion Resistant, Flame Resistant | 0000000 | 000000 |
| 24" | 4 | 0.6 | Rigid | Abrasion Resistant, Flame Resistant | 0000000 | 000000 |
| 48" | 4 | 0.6 | Rigid | Abrasion Resistant, Flame Resistant | 0000000 | 000000 |
3/4" Thick. | ||||||
| 12" | 1 | 0.9 | Rigid | Abrasion Resistant, Flame Resistant | 0000000 | 00000 |
| 24" | 4 | 0.9 | Rigid | Abrasion Resistant, Flame Resistant | 0000000 | 000000 |
| 48" | 4 | 0.9 | Rigid | Abrasion Resistant, Flame Resistant | 0000000 | 000000 |
1" Thick. | ||||||
| 12" | 1 | 1.3 | Rigid | Abrasion Resistant, Flame Resistant | 0000000 | 00000 |
| 24" | 4 | 1.3 | Rigid | Abrasion Resistant, Flame Resistant | 0000000 | 000000 |
| 48" | 4 | 1.3 | Rigid | Abrasion Resistant, Flame Resistant | 0000000 | 000000 |
- Max. Temperature: 1700° F
- Heat Flow Rate: 1.05 Btu @ 800° F
- Color: White
| Wd. | Lg., ft. | R Value | Flexibility | Performance Properties | Each | |
1/2" Thick. | ||||||
|---|---|---|---|---|---|---|
| 12" | 1 | 0.5 | Rigid | Abrasion Resistant | 00000000 | 000000 |
| 24" | 4 | 0.5 | Rigid | Abrasion Resistant | 00000000 | 000000 |
| 48" | 4 | 0.5 | Rigid | Abrasion Resistant | 00000000 | 000000 |
1" Thick. | ||||||
| 12" | 1 | 1 | Rigid | Abrasion Resistant | 00000000 | 00000 |
| 24" | 4 | 1 | Rigid | Abrasion Resistant | 00000000 | 000000 |
| 48" | 4 | 1 | Rigid | Abrasion Resistant | 00000000 | 00000000 |
1 1/2" Thick. | ||||||
| 12" | 1 | 1.4 | Rigid | Abrasion Resistant | 00000000 | 000000 |
| 24" | 4 | 1.4 | Rigid | Abrasion Resistant | 00000000 | 000000 |
| 48" | 4 | 1.4 | Rigid | Abrasion Resistant | 00000000 | 00000000 |
Fiberglass Insulation Sheets
These lightweight, flexible fiberglass sheets are typically used to insulate equipment and appliances.
- Temperature Range: 0° to 350° F
- Heat Flow Rate: 0.26 Btu @ 75° F
- Density: 0.95 lbs./cu. ft.
- Color: Yellow
- Specifications Met: ASTM E84 25/50 for Flame and Smoke
Sheets with temperature range of 0° to 350° F can be layered to increase efficiency.
- Temperature Range: 0° to 1000° F
- Heat Flow Rate: See table
- Density: 2.4 lbs./cu. ft.
- Color: Gray
- Specifications Met: ASTM E84 25/50 for Flame and Smoke
Sheets with temperature range of 0° to 1000° F are suitable for use in ovens. To use outdoors, add metal jacketing (sold separately).
Crack-Resistant Rigid Polyimide Insulation Sheets
Even when subjected to heavy compression, these rigid polyimide sheets won't crack. To use outdoors, add metal jacketing.
Sheets with a density of 12 lbs./cu. ft. are easier to cut than denser polyimide insulation sheets, which makes them good for die-punching applications. They are not, however, good for machining.
Sheets with a density of 60 lbs./cu. ft. are more durable than less dense polyimide insulation sheets, so they can stand up to machining. They’re often used for mold bases or press insulation.
- Temperature Range: -300° to 550° F
- Heat Flow Rate: 0.24 Btu @ 75° F
- Color: Gold
- Specifications Met: UL 94 V-0
Thermally Stable Composite Paper Insulation Sheets
- Max. Temperature: 1100° F
- Heat Flow Rate: 0.22 Btu @ 75° F
- Density: 8.7 lbs./cu. ft.
- Color: White
- Specifications Met: UL 94 V-0
Made of flexible composite paper, these sheets won't shrink or lose shape in the high temperatures of air furnaces and hot water tanks.
Lightweight Melamine Insulation Sheets
- Temperature Range: -40° to 350° F
- Facing Temperature Range: 30° to 150° F
- Heat Flow Rate: 0.27 Btu @ 75° F
- Density: 0.44lbs./cu. ft.
- Color: Gray
- Facing Color: White
- Specifications Met: ASTM E84 25/50 for Flame and Smoke
The lowest-density insulation we offer, these sheets are made of lightweight melamine foam. To use outdoors, add metal jacketing or a coating. Seal with reinforced insulation tape (sold separately).
Sheets with kraft paper facing have added impact resistance.
Sheets | Sheets with Kraft Paper Facing | ||||||
|---|---|---|---|---|---|---|---|
| Wd. | Lg., ft. | R Value | Flexibility | Each | Each | ||
1/2" Thick. | |||||||
| 24" | 4 | 1.9 | Flexible | 00000000 | 000000 | 0000000 | 000000 |
| 24" | 8 | 1.9 | Flexible | 00000000 | 00000 | 0000000 | 000000 |
| 48" | 8 | 1.9 | Flexible | 00000000 | 000000 | 0000000 | 000000 |
1" Thick. | |||||||
| 24" | 4 | 3.7 | Flexible | 00000000 | 000000 | 0000000 | 00000 |
| 24" | 8 | 3.7 | Flexible | 00000000 | 000000 | 0000000 | 000000 |
| 48" | 8 | 3.7 | Flexible | 00000000 | 000000 | 0000000 | 000000 |
2" Thick. | |||||||
| 24" | 4 | 7.4 | Flexible | 00000000 | 000000 | 0000000 | 000000 |
| 24" | 8 | 7.4 | Flexible | 00000000 | 000000 | 000000 | 00 |
| 48" | 8 | 7.4 | Flexible | 00000000 | 000000 | 0000000 | 000000 |
| Foil, Paper | 00000000 | Each | 000000 |
Humidity-Resistant Paper Insulation Sheets
- Temperature Range: 0° to 265° F
- Heat Flow Rate: See Table
- Density: See Table
- Color: Off-White
- Specifications Met: UL 94 V-0, UL 94 5VA
Often used in high-humidity applications for its low moisture absorption, this flexible paper insulation is made of inorganic materials. It’s typically used in appliances and electrical devices. Insulation meets UL 94 V-0 and UL 94 5VA for flame resistance.