Well anyone can give idea about it? Meanwhile the replacement cap is on the way.
So my second vintage gillette tech c4 1957 is brass right??That is probably not repairable. It is made by casting (molding) a type of metal (Zamac) that eventually falls apart once the plating is gone and the underneath is exposed. This is why the other Tech you bought is much better because the whole razor is made of brass underneath the plating. Even if it gets, or has scratches or the plating begins to wear off and expose the brass underneath, it's still okay and will not rot away. Your plain ball-end Tech that you just got is very good. I just shaved with the exact same razor today and the shave was perfect. Absolutely baby smooth shave result with that simple ball-end Tech.
Yes, you can see the brass showing through where the plating is worn away on the edge/corner of the top cap in your photo.So my second vintage gillette tech c4 1957 is brass right??
Actually it is lighting. No plates loss at top cap. But According to sources it is bass because the ball end techs produce before 1962 are brass. But 1950 to 1953 is ferrous metals due to shortage because of Korean war.Yes, you can see the brass showing through where the plating is worn away on the edge/corner of the top cap in your photo.
Hmm yeah I have ordered replacement cap which is on the way for the first one which is Zamak. The second one is brass which is in really good shape and condition. Of course I wouldn't repair the first one anymore due to replacement cap.Depends what the material actually is. MAZAK or ZAMAK is just a fancy name for pot metal. This can be repaired with low temperature solder specifically made for the purpose but replating would be a pain. If it's steel it could be TIG welded. If brass it could be soldered as well. Any way you look at it, the repair would probably cost more than the razor is worth unless you do it yourself.