SealSpec
Build a spec

Custom gaskets and seals, specified and quoted

Free tools for OEM engineers and buyers. Get quotes from qualified manufacturers.

  1. 1Pick a material or sizeSponge, foam, rubber, PTFE, AS568 O-rings
  2. 2Draw and check the partLive drawing with design checks
  3. 3Get your spec sheetSupplier-ready callout, PDF and DXF
  4. 4Get quotesFrom up to 3 qualified manufacturers

Gasket materials

MaterialFormTypical temp.Best for
Silicone spongesponge-75 to 400 °FVery wide temperature rangeSpec it →
EPDM spongesponge-40 to 250 °FExcellent weather, UV and ozone resistanceSpec it →
Neoprene spongesponge-40 to 212 °FBalanced oil, weather and flame resistanceSpec it →
Microcellular urethane foam (PORON-type)foam-40 to 194 °F (typical)Very low compression set for a foamSpec it →
Solid silicone rubbersolid-65 to 450 °FWide temperature rangeSpec it →
Solid EPDM rubbersolid-40 to 275 °FWater, steam, glycol and brake-fluid resistanceSpec it →
Nitrile (Buna-N) rubbersolid-30 to 250 °FGood resistance to petroleum oils, fuels and hydraulic fluidsSpec it →
FKM fluoroelastomer (Viton-type)solid-15 to 400 °FExcellent fuel, oil and chemical resistanceSpec it →
PTFE (solid, filled and expanded)sheet-450 to 500 °FNear-universal chemical resistanceSpec it →
Compressed non-asbestos fiber sheetsheetup to ~700 °F short-term, grade-dependentHolds bolt load well in flanged jointsSpec it →

Typical values; grades vary. Compare all materials side by side →