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In article <fgbb43tkl20lajba7qer8fasgh0j3cnjfa@4ax.com>,
Michael Horowitz <mhorowit@cox.net> wrote:
> I've yet to decide what epoxy to use on my steel fuselage, so I've
> no literature on how to prep the metal.
>
> Part of my decision making is _where_ to do the work. If I've to use
> MEK or like solvent, I do not want to do the work in a semi-enclosed
> area; if a dry wipe-down or alchol is sufficient, then my work-place
> of choice is OK.
>
> Assuming I"ve brought to fuselage back to bare metal and have used
> emery cloth so there exists a 'tooth' to the metal, does metal prep
> require the use of MEK or acytone prior to primer application? - Mike
For steel (or any metal, for that matter), you have to remove all
oils/greases. A wipe down with lacquer thinner, MEK, alcohol, etc. will
do this. Look for a clean-looking cloth or paper towel.
You should also remove any welding scale, which consists of oxides of
iron before priming. This process usually involves fine-particulate
(glass beads are best) blasting of welded areas to clean the metal.
As soon as the metal is clean, apply two-part epoxy primers. Wear
appropriate breathing protection, as the stuff is cumulatively toxic and
allergenic.
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Re: Steel prep for two part epoxy?
