Author Topic: Tank Colour  (Read 240 times)

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Offline FAA891

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Tank Colour
« on: January 09, 2019, 09:39:49 pm »
Gentlemen,

Good evening all. After a few months hard work with my mate Ron we finally got the bike running today and once it got warmed up very nice it sounded to. Its looks as well as sounds great but my missus thought the tank need some work on it. Pls see the attached photos. I think the tank was originally green and chrome. Does anyone know where I can get hold of that green and is there a paint ref?

Btw thx all for the helpful advice over + or - earthing a couple of months back. In the end I went neg earth.
Cheers
Pete M
Pete M

Offline Owen

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Re: Tank Colour
« Reply #1 on: January 09, 2019, 09:52:22 pm »
Remind us which year?
I have a 45 c11 which the tank is silver and seems to have an undercoat of green.
1940 C12 (350cc)
1945 C10 & C11
1953 C10 & C11
Anyone want a B20 in need of a lot of tlc

Offline FAA891

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Re: Tank Colour
« Reply #2 on: January 09, 2019, 10:06:21 pm »
Owen,

Its a 1946.
Pete M

Offline Owen

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Re: Tank Colour
« Reply #3 on: January 09, 2019, 10:08:54 pm »
So could be the green was an undercoat. 
1940 C12 (350cc)
1945 C10 & C11
1953 C10 & C11
Anyone want a B20 in need of a lot of tlc

Offline timsdad

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Re: Tank Colour
« Reply #4 on: January 10, 2019, 06:10:36 am »
Yes, my 1940 fuel tank was pin-striped silver but had a green undercoat. This old bike had been stood up in about 1960 so I'm sure the paintwork was original. The finish of war-time bikes was carried through to the immediate post-war production bikes until the factories had managed to sort themselves out and get the new ranges on the market.

So I'd say, too, Pete, that your tank had a green undercoat with a matt silver finish and probably had a pin-striping round the sides as in pictures in the Galleries.


Ray
Just a motorcyclist.

Offline Owen

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Re: Tank Colour
« Reply #5 on: January 10, 2019, 09:42:30 am »
If you look at post 246 of the following topic you can see my 45 C11 tank undercoated in green
https://bsac10c11c12.co.uk/smf/technical/1945-girder-c11/225/
1940 C12 (350cc)
1945 C10 & C11
1953 C10 & C11
Anyone want a B20 in need of a lot of tlc

Offline ianinglis

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Re: Tank Colour
« Reply #6 on: January 10, 2019, 07:41:36 pm »
the green is probably an etching primer to make the silver paint "stick"

ian
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Offline hampshirebiker

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Re: Tank Colour
« Reply #7 on: January 10, 2019, 08:01:40 pm »
I wondered why they'd use a green undercoat for silver paint.
Postal - Liphook Hants - But just into West Sussex.

Offline timsdad

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Re: Tank Colour
« Reply #8 on: January 11, 2019, 06:49:00 am »
Back in the early'70s I worked for a local haulage firm and spent about a year in the paintshop after their sprayer had sudden medical problems and retired early. I was the only one in the workshop who had any bodywork experience so got chucked in at the deep end to finish off a half-painted Mercedes truck. I think, maybe, I made too good a job of it so stayed in there for a year to go through the older vehicles in the fleet.

This included several artic bulker trailers, malt boxes, flour tankers and the like, and the acidic-tasting etch primer I used on the aluminium was green. I've always thought that the green undercoat on my old BSA tank was etching primer used as a first undercoat.


Ray
Just a motorcyclist.

Offline maroon1953

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Re: Tank Colour
« Reply #9 on: January 11, 2019, 07:24:31 am »
I own an unrestored 1946 B32 Competition bike and wonder about the silver + green colour fragments on the petroltank.
Now I understand the green colour.
Thanks for the information!

Michael

Sorry, I was not able to send a photo with this relpy.

Offline timsdad

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Re: Tank Colour
« Reply #10 on: January 11, 2019, 07:31:02 am »
Chrome plated tanks would certainly need an etching primer under the paint to prevent it flaking off. It's likely that BSA, at the time, used the same primer/undercoat on their tanks whether they were chromed or just painted.


Ray
Just a motorcyclist.

Offline Owen

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Re: Tank Colour
« Reply #11 on: January 11, 2019, 08:04:27 am »
Maybe they used the green primer to give the silver top coat a different tint?
1940 C12 (350cc)
1945 C10 & C11
1953 C10 & C11
Anyone want a B20 in need of a lot of tlc