Shell, hot-dip galvanization?

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Rob_farmer
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Post Sun Jan 12, 2014 10:19 pm

Guys,

What do you think would happen if bare shell would go through such process? Do you think 450 degrees would damage/melt/bend/change anything?

Would be perfect to get all the old paint off to bare metal and get it galvanized. But then - would paint stick to zinc ?!

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I`m driving E30, 1989, 325i, 4 door. Restoring 1990, 4 door.
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maggspower
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Post Sun Jan 12, 2014 10:22 pm

Well it wouldn't rust.

But the panel gaps would be....... interesting
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Rob_farmer
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Post Sun Jan 12, 2014 10:23 pm

maggspower wrote:But the panel gaps would be....... interesting
What do you mean ?
I`m driving E30, 1989, 325i, 4 door. Restoring 1990, 4 door.
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maggspower
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Post Sun Jan 12, 2014 10:32 pm

No doubt it would have the general shape of an e30. But 450*C is going to warp panels, big time. The steel will want to go back to the shape that it was before it was pressed into panels.

You could lessen the effect, but you would need to slowly bring the whole shell to 450*C and then let it cool down slowly. Impractical really, and it still may bend.
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Rob_farmer
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Post Sun Jan 12, 2014 10:33 pm

:eek: 8O Bad idea then.
I`m driving E30, 1989, 325i, 4 door. Restoring 1990, 4 door.
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leeparkes
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Post Sun Jan 12, 2014 10:44 pm

Theres a place near me who does a similar sort of thing, see all manor of cars going there on trailers.

http://www.surfaceprocessing.co.uk/for-cars.html
Cypriotgeeza wrote:I done both my mates in my old 318is
felt so proud,even tried it with a E30 325i and got put in my place.. :o:
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Rob_farmer
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Post Sun Jan 12, 2014 10:48 pm

I wish there would be such plant in our country. We only have one in total, and its hot dip.
I`m driving E30, 1989, 325i, 4 door. Restoring 1990, 4 door.
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bss325i
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Post Sun Jan 12, 2014 11:03 pm

leeparkes wrote:Theres a place near me who does a similar sort of thing, see all manor of cars going there on trailers.

http://www.surfaceprocessing.co.uk/for-cars.html
That's acid dipping and E-coat. No 450 degree heat needed. :)
http://www.bmrperformance.co.uk

BMW and MINI specialist - Gatwick
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leeparkes
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Post Sun Jan 12, 2014 11:10 pm

All the better then :) you see some right peodo chariots turning up there.
Cypriotgeeza wrote:I done both my mates in my old 318is
felt so proud,even tried it with a E30 325i and got put in my place.. :o:
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DanThe
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Post Sun Jan 12, 2014 11:20 pm

It would end up a right mess! Have you ever seen a gate post for example thats been galv'd? The last bit to come out of the tank has the most material build up, you end up with 'galv thorns' where it drips off, very painful! Box sections have to have holes put in to stop them exploding too! Being a car body, it would all gather/pool in any place it runs to, lots of 'container' bits to hold the galv.
I doubt anyone would take the job on either TBH
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mcbonio
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Post Mon Jan 13, 2014 2:17 pm

Didn't the 318IS have a galvanized shell? Surely it would be best to build your long term e30 on a 318IS shell if this is true.
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SStuart
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Post Wed Feb 12, 2014 4:48 pm

Cold dipping gives the same cathodic protection as hot dip, but it is applied as a paint.
Paint after depends on the manufacturers data sheet.
hmmmm :?:
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Brianmoooore
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Post Wed Feb 12, 2014 6:56 pm

mcbonio wrote:Didn't the 318IS have a galvanized shell? Surely it would be best to build your long term e30 on a 318IS shell if this is true.
Anyone know where this daft rumour started?
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pacerpete
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Post Wed Feb 12, 2014 7:19 pm

Brianmoooore wrote:
mcbonio wrote:Didn't the 318IS have a galvanized shell? Surely it would be best to build your long term e30 on a 318IS shell if this is true.
Anyone know where this daft rumour started?


Undoubtably by a 'mini M3 ' pilot trying to justify his turd after being severely disciplined by a 325 :D
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