David,
I am having all my Aston parts "sand"blasted. The aluminium
bits,which were quite robust, did not do well with the stuff they
used for steel, gave a sort of a funny finish - but was soon
fixed. For the next parts they used a proper aluminium "gind" and
parts came out looking gorgeous. To me the grind would be very fine
- 220 yes? However, I think that crushed walnut shells are used on
aluminium bodys. I calculated that it was cheaper to batch up all my
bits and give them to a professional shop. The advantage that I had
was that they powder coat there too. To do all the bits, blasted
and coated, will cost less than $1,000 - which is much less than
machines, grit, electricity, powder coating, elastaplast, and trips
to the hardware shop................but same amount of beer.
At 09:12 PM 12/29/2009, Councill, David wrote:
>I have purchased a blast cabinet from Horrible Freight because the price
>was right and it will be handy during my latest restoration of a 64B.
>The question I have concerns the media. I have immediate need to clean
>up parts like rusty pedals, brake cover, air filters assemblies to think
>of a few and wonder about what sandblasting media would be best. HF was
>limited on selection and my initial research indicated the best blast
>media for the application would probably be a fine aluminum oxide
>abrasive. All they had was the 70 grit and the staff person thought I'd
>be better off with the out of stock 220 grit. For those of you with
>sandblasting equipment, what do you use or recommend for blast media?
>
>
>
>David Councill
>
>64 B
>
>67 BGT
>
>72 B
>
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Regards
Barrie
(705) 721-9060
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