Corrosion Inhibitor: Tef-Gel vs LanoCote vs White Lithium Grease
Corrosion Inhibitor: Tef-Gel vs LanoCote vs White Lithium Grease
(OP)
Hello,
I have a structure that requires 18-8 stainless steel bolts and 6061-T6 Al beams and channels to be isolated against galvanic corrosion. I have seen good reports on Tef-Gel ( http://www.tefgel.com)for this purpose, based on marine applications, and in searching the web, also found that Lanocote ( http: //www.fore spar.com/o nlineCatal og/23-Lano cote.shtml )is used for similar marine applications. This leads me to believe that Lanocote could work as well to isolate the SS from the Al . Finally, with cost in mind, why couldn't I use a white lithium grease ( http://www.usseals.com/prod1.htm ) to isolate the SS from the Al? There are a few PTFE enhanced synthetic lithium greases ( DuPont: http:// www.perfor mancelubri cant.dupon t.com/dp_p roducts_li thium.html , or LPS: http:// www.lpslab s.com/Prod ucts/Greas es/white_l ithium.asp , and others... ) that seem to be a good choice. Is the PTFE adding anything to the corrosion protection compared to teh cheaper basic white l;ithium grease? Essentially, the Tef-Gel, Lanocote, and lithium greases are keeping moisture out of the dissimilar metal joint, so it seems that any of these 3 should perform equally well. My application is NOT a marine application. My application is for a roof structure in an (polluted) urban atmosphere. Thanks in advance.
I have a structure that requires 18-8 stainless steel bolts and 6061-T6 Al beams and channels to be isolated against galvanic corrosion. I have seen good reports on Tef-Gel ( http://www.tefgel.com)for this purpose, based on marine applications, and in searching the web, also found that Lanocote ( http:




