plating, anodizing, & finishing Q&As since 1989
Long term corrosion protection for a classic British motorcycle
October 24, 2012
I have been reading your comments a lot and wanted to ask you questions since the first encounter. Let me explain my problem. I am pretty much in love with my motorcycle (Royal Enfield STD 350) and can't stand a sight of rust.
I ride my motor to work everyday and live close to the beach. Do you have any long term corrosion prevention recommendations ? Will the plan below work?
(A). ferrous parts,
1. Zinc plate the parts (Galvanize; I will get it done by a professional)
2. Use a putty/filler/joint compound to level out the scratches.
3. Sand the surface with a fine grit paper for better primer adhesion
4. Paint (or powder coat ?) a zinc chromate primer
5. Powder coat the final flat black layer
(B). Parts that get hot (exhaust, engine cover etc),
Steps 1 to 3 as above
4. Paint a silicone based heat resistant paint
(C). Aluminium parts,
1. Powder coat a silver/chrome layer
(D). Nuts,bolts, springs and washers
(E) Other ideas
I initially planned to weld a piece of zinc to the metal to be protected and connect with a copper wire (Sacrificial Anode / Cathodic protection). But that's going to be my last option as the chunks of zinc are going to be visually displeasing (Zinc is expensive as well).
Of course I will continue to spray WD-40 every week on all mechanic fasteners. They have a new specialist product range that includes a corrosion protection product. But the specialist range is not available in India yet.
Note: As you suspect, I am confused and would like some help making the final decision.
Hobbyist - Calicut Kerala India