I do not recommend painting the insides of any grill.
I do not FULLY disapprove it either. I am not a chemist,
and the lawyers at Rustoleum have left open some
room for interpretation on this issue.
Sorry for the pic... hard to snap a pic of a round can .....
It is quite clear... don't paint grates, or any surface
in direct contact with food.
"Do not expose to open flames." This is vague.
At some point distance has to come into play, right?
I would also think temperature would have to be an
issue also. The inside of the cooking chamber on
my offset after burn off was never above 300 degrees.
It was not exposed to any direct flame, as the flames
were inside the firebox, not the cooking chamber.
This would be different than the inside of a gasser.
There is lots of other legal mumbo jumbo listed below
the bottom of the pic, but it all seems to apply to the
application of paint, and not the use of the painted
product afterwards.
I have never, and will never spray the inside of a flipper.
I am very comfortable in saying that I simply do not know
enough one way or the other to feel comfortable in doing so.
Also, as is perfectly illustrated here ... it opens up a whole can
of worms. Much better to simply have a customer refuse
to buy your grill because they think its unappealing on the
inside than to think they may be poisoned by your work.
JimV. - for what its worth - I would have taken care of this when
picking up the fire box. I would have questioned why the inside was
painted to begin with, and had him blast the inside again whether it
was on my dime or his. A nice shiny blasted box will sell quickly,
without any of the bs a painted box might stir up.