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Fluid Filled O-Rings for Maintaining a Seal Under Low Temperature Conditions

Award Information

Department of Defense
Award ID:
Program Year/Program:
1995 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Texas Research Institute Austin, Inc.
9063 Bee Caves Road Austin, TX -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 1995
Title: Fluid Filled O-Rings for Maintaining a Seal Under Low Temperature Conditions
Agency / Branch: DOD / ARMY
Contract: N/A
Award Amount: $99,000.00


Elastomeric O-rings provide a critical sealing funcion in a myriad of devices of military and commerical interest. A critical problem with currently available O-rings occurs when the O-ring material stiffens at low temperatures, causing a failure in sealing. Previous work by the Army has indicated that a fluid filled O-ring is a viable candidate as a low temperature seal. There is a need to extend this work so that the O-ring will maintain a good low temperature seal and be able to tolerate the high temperatures generated by some applications. In the proposed effort, Texas Research Institute Austin (TRI/Austin) will identify, fabricate, and test different elastomeric skins andliquied cores during the design of a prototype liquid filled O-ring. In order to identify state of the art polymeric materials not currently available in commerical O-rings, TRI/Austin will team with McGahan NuSil, Inc., who are experts in silicones, fluorosilicones and other sealing materials. During the Phase I effort, we propose to investigate and characterize a number of elastomeric materials and liquid filings under high and low tmeprature conditions and examine the interaction between the elastomeric envelope and the liquid filler during the O-ring design process.

Principal Investigator:

J.scott Thornton/m.l.ding

Business Contact:

Small Business Information at Submission:

Texas Research Institute
9063 Bee Caves Road Austin, TX 78733

Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No