[azz7772]

what do you all think after sandblasting would you also sand with sandpaper before priming? or is that not required as long as you prime soon after blasting?  thanx in advance for your opinions  8)

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[eldubb440]

prime right over the blasted area, but hurry before it turns brown. use a good epoxy primer, it will fill in the sand "pits" and adhesion will be awesome! other blasting media, such as soda may not leave it as rough as sand, and may require "scratching". i prefer sand. but never sandblast the open areas of exterior skins. i like to strip the skins chemically.

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[71 demon child]

DO NOT touch the metal with greasy paws.The oils from your hands will transfer onto the metal instantly.You might want to clean the bare metal first.Just a precaution for contaminents.Adhesion is definitely the key.