Join Date: Dec 2005
Location: Pacific Northwest
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How To Repair Thermal Lug - Carbon to Aluminum?
I just picked up an Eclipse TVT Carbon 7 road bike for a "fire sale" price. This is a carbon tubing frame from the late 1980s where the carbon tubing is thermally bonded into aluminum lugs. The problem is that the bond at the top of one of the rear stays has separated from the lug--this is the lug that joins the seatpost, rear stays, and top tube. The tubing is presumably thermally bonded with what appears to be grey epoxy.
The bottom of the rear stay in question is bolted rather than bonded to the lug at the bottom (the lug that attaches it to the rear chainstay.) The bridge for the rear brake also appears to be thermally bonded, but has not separated.
I bought the bike strictly for parts resale, not for riding myself, and all the other parts are nice Shimano 600, Dura-Ace, and Campy Record stuff.
So my question is, can I repair this sucker, with a view to selling the frame by itself with an advisory that it has been properly repaired?