This classic restoration project is going to take courage // SOUP Classic Motoring 49

This classic restoration project is going to take courage // SOUP Classic Motoring 49


you see when you’re blasting, it’s not a Range
Rover chassis it’s not 3mm steel you know it’s very thin, its nearly the same as
a door or bonnet skin you know. That’s why you have to blast always at an
angle. Of course you’re using more grit because you’re losing thirty or forty percent
[of your power] when you’re blasting at an angle. But you’re never going to stretch
[the metal] you’re never going to do damage when you do it at an angle. If you’re going
to do it straight you can do damage when you’re blasting stuff like this stuff in the middle,
it’s no problem in the corners or those round pipes, you can blast it you can hold
it straight and go very close to the item. You see its fine when you’re doing heavy stuff, it’s no worry, even axles or chassis,
but if someone asks you to do a the door or bonnet of the car or a wing, there’s no
way you can blast it straight away and some people think if you’re using very fine
media you’re not going to do damage That’s completely wrong thinking because when you’re
using really fine grit you’re going to do more damage. It’s nearly the same like
if you take very fine sand paper and try to sand off three or four coats of paint it gets
hot very quickly and you have to sand for probably five minutes to get rid of that paint.
With the very rough sand paper you need only half a minute, not five minutes, sometimes
it’s better to use rough grit and low pressure than you know very fine grit and high pressure.
That’s the thing. Yes first of all we were using fine glass, crushed glass, but the chassis has so many
tiny little pores which it was very hard to get rid of with the fine stuff, then I tried
superfine glass and it was not good enough and the of course I changed to very very fine
stuff to get rid of as much as I can you know. The biggest problem is pores. Because some
steel, it’s nothing like cast iron, if you’re blasting cast iron you can get rid
of all the rust, but mild steel you see you have tiny little pores its nearly the same
as if you press a needle into timber, it will have little pores and it’s very hard to
get rid of because when shot hits it just bounces back and you have to really insist
blasting and blasting in one area which you can’t do on this because it’s very thin
skinned and that’s why it took so long. Sometimes there is not a hope you can get rid
of those because it’s so tiny even if you’re using soda you have zero chance to get rid
of them in some places. I feel good, oh yeah yeah yeah, now you have to do a few welding jobs Yes, yes, you have to do it and you have to do it very quickly you’re not supposed to leave it even 24 hours It has to be done actually straight away.

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