Blow holes in replica car mascot

[RonA]

I was given a replacement (brass) replica mascot & windscreen brackets (missing) for my resto car project. I suspect they were trial pieces for a production run. All were given free gratis.
Unfortunately they have slight blow holes in places & ultimately they will need chrome plating.
From what I’ve read on the forum & from chromers, the holes will need filling in with silver solder or braze before chroming.
Filling the holes with braze would clearly be very dicey as some of the pieces of the mascot are quite thin (see photo) & easily melted.
Which, unless anybody has any other better idea leaves silver soldering.
My question is would a mapp torch have enough heat to melt silver solder to achieve the required repair.
RonA

 

[tom2207]

very smart ... where are the holes ,, are they round the cap , they should solder ok plumbers paste flux would get you a great start .

 

[daedalusminos]

I hope you know a good chromer, that's intricate and will need very careful polishing - give it to the wrong people and you'll lose all the detail and sharp edges. If the pits aren't too deep they could be filled with heavy copper plating and re-finished

 

[RonA]

very smart ... where are the holes ,, are they round the cap , they should solder ok plumbers paste flux would get a great start

I’ve been told by the chromers the plating won’t attach to normal solder, needs to be silver solder RonA

 

[RonA]

I hope you know a good chromer, that's intricate and will need very careful polishing - give it to the wrong people and you'll lose all the detail and sharp edges. If the pits aren't too deep they could be filled with heavy copper plating and re-finished

Unfortunately some of the holes are quite deep RonA

 

[daedalusminos]

they should solder ok plumbers paste flux would get you a great start .

You'll see a different surface finish using soft solder

 

[tom2207]

I’ve been told by the chromers the plating won’t attach to normal solder, needs to be silver solder RonA

ah , now theres a shame ,,,

 

[brightspark]

if you pack round it with broken soft breezeblocks or fire bricks to retain the heat it will silver solder no problem providing its well cleaned and fluxed

 

[daedalusminos]

You can fill some pretty deep pits with copper....here's an unfinished project, it's an enamelled badge from a Mk1 Triumph GT6 - they're quite rare but this was in poor condition so good for an experiment.

The base is brass but that had become pitted due to loss pitted chrome. First job to get the chrome off which is easy by reverse electrolysis but the nickel underplate is a little more tricky but eventually end up with this:



Then with progressive copper plating followed by polishing you fill the pits, (un)fortunately I never finished as I managed to aquire a good alternative but this should give an idea as to how thick the copper can be built up

 

[tom2207]

You can fill some pretty deep pits with copper....here's an unfinished project, it's an enamelled badge from a Mk1 Triumph GT6 - they're quite rare but this was in poor condition so good for an experiment.

The base is brass but that had become pitted due to loss pitted chrome. First job to get the chrome off which is easy by reverse electrolysis but the nickel underplate is a little more tricky but eventually end up with this:

View attachment 323084

Then with progressive copper plating followed by polishing you fill the pits, (un)fortunately I never finished as I managed to aquire a good alternative but this should give an idea as to how thick the copper can be built up

View attachment 323085

thats a mighty result.