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USE OF SOLITHANE

USE OF SOLITHANE

USE OF SOLITHANE

(OP)
Hello,


We usually use solithane as a way of ensure the fixation of bolts and nuts of space equipment during vibration test.

My question is the use of solithane on the thread of the bolts and nuts is compulsary necessary when a  self-locking nut is used.

Thank you very much and best regards,

Esteban

RE: USE OF SOLITHANE

Do you know something about solithane with glass microsheres?

Regards

Cpepe

RE: USE OF SOLITHANE

Celemin...

Very unfamiliar with "solithane"... however it sounds like a thin coating or thread-locking media.

Typically NASA requires dual locking for bolt/nut installations.

I remember reading a report that NASA approved use of self Locking Nuts [all metal] for launch vehicles, when a space- rated thread-locking adhesive compound was used [space rated = non-outgassing, plus wide temperature range].

I have successfully installed Hi-Loks [pins/collars or SL nuts] in high vibration areas with a combination of tension-rated parts [collars/pins or nuts] and wet-sealant or high-strength thread locking compounds on the collar/nut threads [install slowly and deliberately to allow selant or adhesive squeeze-out before collar break to insure parts are truly tight/seated]. Note: the pins/collars must be solvent-cleaned to remove any existing thread lubricants [IE: cetyl alcohol] or grime that would interfere with adhesion [anaerobic adhesives and sealants are slippery, up-to the point where "gelling" occurs].

Regards, Wil Taylor

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