Technical & Reference Section > Tech and Restoration

Any of you lads do media blasting?

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oldschoolace:
Alreet lads :)

I've got an idea for some cranks and am looking to get them media blasted with baking soda, walnut shell or something similar to achieve a matt nice flat alloy look but without the overly granulated look of heavier media.

Tried wet or dry and fine wire wool but it's impossible to get a truely even matt look. Don't want to trust them to a company that don't appreciate the finesse needed so who can help me?

:)

sawzall:
Try a red layered scotch bright wheel on a polishing
Mop clint,great for a satin finish

oldschoolace:
Cheers Phil will give it a whirl, hopefully it should just get in around the spider. Did think about a light etch with oven cleaner but the parts I have stripped in the past have never had a totally even finish :(

Bfellows:
You need to tumble them rather than blast for a nice matt even finish - have a mooch through the yellow pages for metal burnishers ;)

oldschoolace:
I've actually got a vibratory tumbler and was playing with it this evening but it's not really big enough for a crank arm. I know a company in Birmingham but I plan on leaving the face of the arm and the spider rim polished so would be easier to mask off for shot blasting.

will get a pic of thermal up in a min :)

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