Neoprene and Nylon insulating washers for galvanic corrosion
Neoprene and Nylon insulating washers for galvanic corrosion
(OP)
Does anybody know how strong neoprene and nylon washers are? What if I need to torque them beyond snug-tight (e.g. pretension or slip-critical connections)?
Can these washers handle the stress? Does anybody know what their strength properties are?
I would like to use these to seperate SS bolts from aluminum or galvanized steel members.
Thanks
Can these washers handle the stress? Does anybody know what their strength properties are?
I would like to use these to seperate SS bolts from aluminum or galvanized steel members.
Thanks





RE: Neoprene and Nylon insulating washers for galvanic corrosion
RE: Neoprene and Nylon insulating washers for galvanic corrosion
RE: Neoprene and Nylon insulating washers for galvanic corrosion
Regards,
Cory
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RE: Neoprene and Nylon insulating washers for galvanic corrosion
Steve Jones
Materials & Corrosion Engineer
http://www.pdo.co.om/pdoweb/
RE: Neoprene and Nylon insulating washers for galvanic corrosion
There is a number of companies specialised in supplying insulating washers, sleeves, gaskets, etc..Check out one of the many sites, refer below:
http:
cheers,
gr2vessels
RE: Neoprene and Nylon insulating washers for galvanic corrosion
Gold is for the mistress - silver for the maid
Copper for the craftsman cunning in his trade.
"Good!" said the Baron, sitting in his hall
But iron - cold iron is the master of them all.
Rudyard Kipling
RE: Neoprene and Nylon insulating washers for galvanic corrosion
RE: Neoprene and Nylon insulating washers for galvanic corrosion
MJ
RE: Neoprene and Nylon insulating washers for galvanic corrosion
The flange and bolting insulators are non-metallic electric insulators, but they can take large compressive stresses, typically associated with flange bolting stresses. The washers supplied come usually with precise torquing instructions. Ah, by the way, those are not made of rubber. The rubbes washers are used for water taps. As far as the galvanic corrosion in submerged sea water concerns, the insulators will interrupt the galvanic circuit between the metallic parts and the water will become a passive component in the circuit. No more galvanic corrosion issues. I would rather be concerned with the suitability of SS bolts in marine submerged environment and also the galvanised components as subjected to direct corrosion, rather than galvanic corrosion of dissimilar materials.
If you refer to structural bolting outside a wet marine environment, the insulator washers and sleeves are still your best option, as those washers can take loads associated with class 1500# flanges without problems...
cheers,
gr2vessels