Ride, Wrench, Swap, Race
Join Date: Jan 2010
Location: Northern California
Posts: 9,181
Bikes: Cheltenham-Pedersen racer, Boulder F/S Paris-Roubaix, Varsity racer, '52 Christophe, '62 Continental, '92 Merckx, '75 Limongi, '76 Presto, '72 Gitane SC, '71 Schwinn SS, etc.
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I bought a pair of Nuovo Record derailers where someone had soaked them in some kind of degreaser(?) that left the alloy black, and have been wanting to know how to replicate this.
Anybody know how, which chemical has the effect of producing the durable dark-grey tone?