PLA Colour Leaching

I've just discovered that the PLA filament I'm using is not colour-fast.

This very simple 1:144 scale model of a P40 Warhawk was printed in blue PLA (0.08mm layer height), and then sprayed with white primer. The blue from the PLA has leached through a bit and stained the primer a pale blue.

Hopefully when the primer has cured properly, it will seal and stabilize the underlying colour. I wouldn't want all my top-coats going blue too.

One good thing: the sandable primer has completely obliterated any remaining layer corrugations (though they were minimal in any case). There's no fine detail on this model to be affected by it, so that's a pure win.

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