Michel
Joined: 10 Jan 2006
Posts: 966
Location: Norway
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 Posted: Wed May 31, 2006 10:10 am Post subject: Alternative material WAS: West System Epoxy answer |
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On May 31, 2006, at 7:36 PM, Mike Chaney wrote:
| Quote: | I was wondering why someone hasn't made a tank out of the same
material that
the red plastic gas cans are made from. I have a number of these
plastic
cans at home and they seem to last forever.
|
I don't know, Mike, but I think that all the thermoplastics will
require a mould that is expensive to produce, and the testing to make
it even and at the right thickness.
As I wrote before, and only based on my experience with thermoplastic
dinghies built here, in Norway, the process is to cast an aluminium
mould. Then this is placed in an oven. Preferably by a company that
already has ovens about the right size for that kind of object. Then
there is a long and extensive period of trial and error, where the
"robot" that turns around the mould has to learn how to and how long so
that the result is satisfactory and passes QA. At least, that's how it
was done in the late 70s.
We could ask someone to do that for us but then we have to come with
the following: How many tanks do we need? How many different tank types
there is for all the Kitfox models? Then we hear what it would cost to
make the mould and calculate how much it will cost per tank to pay for
it.
Cheers,
Michel
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