What is the impact of long-term exposure to outdoor sunlight on the single-layer sintered epoxy powder anti-corrosion coating?
Thread Content
Steel pipe with a single-layer epoxy powder anti-corrosion coating; the thickness of the coating is 400 microns. It has been protected against corrosion for over half a year, stored outdoors under direct sunlight. I would like to ask the experts here: What is the impact of long-term exposure to sunlight on single-epoxy anti-corrosion coatings? Why? Where can I find relevant papers?
Epoxy paint does not have good weather resistance; after prolonged exposure to sunlight, its surface tends to flake and fade, but this does not affect its anti-corrosion properties. Still, it needs to be dealt with as soon as possible, or shielding measures should be taken.
As long as the resin cross-linking degree of the epoxy paint film is good, its weather resistance is still satisfactory.
The surface is prone to flaking and fading after exposure to sunlight.