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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 |
Ultra-Thin Rigid Millboard Insulation Sheets for Furnaces

Thinner than most rigid insulation for furnaces and other high-heat applications, these millboard sheets are also used for gasket fabrication. Insulation performs best at temperatures above 1000° F.
Mineral Wool Pipe Insulation
These insulation tubes and sheets meet ASTM E84 standards for flame and smoke. They are typically used in process piping and mechanical systems and perform best at temperatures up to 600° F. To use outdoors, add metal jacketing.
Sheets with adhesive-filled V-grooves create a temporary hold to make installation easier.

- Temperature Range: 0° to 1200° F
- Heat Flow Rate: 0.23 Btu @ 75° F
- Density: 8 lbs./cu. ft.
- Color: Beige
- Specifications Met: ASTM E84 25/50 for Flame and Smoke, ASTM C547
1 1/2" Thick. | 2" Thick. | ||||||||
---|---|---|---|---|---|---|---|---|---|
For Pipe Size | Wd., ft. | Lg., ft. | Flexibility | R Value | Each | R Value | Each | ||
3 | 3 | 3 | Flexible | 6.5 | 00000000 | 000000 | 8.7 | 00000000 | 000000 |
4 | 3 | 3 | Flexible | 6.5 | 00000000 | 00000 | 8.7 | 00000000 | 00000 |
5 | 3 | 3 | Flexible | 6.5 | 00000000 | 00000 | 8.7 | 00000000 | 00000 |
6 | 3 | 3 | Flexible | 6.5 | 00000000 | 00000 | 8.7 | 00000000 | 00000 |
8 | 3 | 3 | Flexible | 6.5 | 00000000 | 00000 | 8.7 | 00000000 | 000000 |
Flame-Resistant Flexible Synthetic Fiber Duct Insulation Sheets

- Max. Temperature: 1830° F
- Heat Flow Rate: 1.93 Btu @ 1500° F
- Density: 6 lbs./cu. ft.
- Color: White
- Facing Color: Silver
- Specifications Met: ASTM E84 0/0 for Flame and Smoke
Also known as fire wrap, these flame-resistant sheets meet ASTM E84 0/0 for flame and smoke and create a fire barrier around rectangular and round ductwork. They are often used to wrap kitchen grease exhaust ducts and air ducts. Seal with reinforced HVAC tape (sold separately).