A "Soft Gasket" material is a term used when referring to a gasket material that is easily compressed under a low bolt load. This term has been used to distinguish the difference from a metallic gasket. A soft gasket material can be selected from a large variety of rubbers and compressed non-asbestos sheet products. As part of Lamons strategy to offer customers a wider range of products, we are pleased to supply the following soft gasket materials:

  • Elastomeric and Fiber Sheet
  • Compressed Non-Asbestos Sheet
  • Virgin / Glass-Filled / Reprocessed PTFE Sheet
  • Biaxially Orientated (Filled) PTFE Sheet
  • Expanded PTFE Sheet
  • EPTFE Joint Sealant
  • PTFE Envelope Gaskets
  • Flexible Graphite Sheet
  • Ceramic Fiber
  • Mica Sheet

 

Optimum Gasket Seating Stress
Non-Metallic
Gasket Type Minimum [PSI] Optimum [PSI] Maximum [PSI]
Thickness 1/16" 1/8" 1/16" 1/8" 1/16" 1/8"
CNAF 3,800 4,100 6,000 6,000 210,000 8,000
Rubber 200 1,000 2,000
LG-SS 900 3,600 18,000
LG-TC 2,500 10,000 20,000
Matrix
L-100 2,175 6,000 10,000
L-104 1,595 5,000 10,000
L-110 1,740 6,000 10,000
L-120 1,000 5,000 9,000
Virgin Teflon 2,150 4,500 7,000

 

Note: Optimum Gasket Stress is based on gasket performance at moderate internal pressure. When working with high internal pressure applications please contact Lamons Engineering Department for clarification. This email address is being protected from spambots. You need JavaScript enabled to view it.

Minimum gasket stress is based on the Y factors of the gasket.