SealSpec / Custom gaskets / Fiber sheet
Compressed non-asbestos fiber sheet gaskets
Custom-cut compressed non-asbestos fiber sheet gaskets (Aramid/fiber + NBR or SBR binder): where it works, where it fails, typical properties, and how to call it out on a drawing. Use the builder to spec your part in this material.
Typical properties
| Polymer | Aramid/fiber + NBR or SBR binder |
|---|---|
| Form | sheet |
| Service temperature | up to ~700 °F short-term, grade-dependent |
| Firmness | Rigid sheet |
| Common thicknesses (in) | .031, .062, .125 |
Typical ranges for the material family. Specific grades differ: confirm on the datasheet.
Strengths
- Holds bolt load well in flanged joints
- Steam, water, oil and hydrocarbon service by grade
- Economical industrial flange gasket
Watch out for
- Temperature × pressure limits depend on grade: check the P×T chart
- Not a low-closure-force seal
Typical applications
- Pipe flanges
- Pumps and compressors
- Industrial covers
Specs and standards to reference
- ASME B16.21 flange-gasket dimensions
- ASTM F104 classification