Mailbox post turning green?

Question

I recently put in a wooden mailbox post in my front yard. I painted it with standard white outdoor (yes it's outdoor) paint. Now, a few weeks after installing it, I'm noticing a very light green color forming on the mailbox. I have no clue what this is, nor where it's coming from. Can anyone help me fix this problem?

The light green color is appearing on the mailbox post, not the mailbox! Sorry for the confusion

Answer 1

That sounds like mold to me, but it shouldn't be there at all if you painted with outdoor paint.

Answer 2

It sounds like the natural oils of the wood coming through the paint. You may want to ask about a primer coat, then the outdoor coat. Check with your local paint specialist.

Answer 3

If it's on the surface of the paint, it's moss. You can wash it off with a bleach solution if you so desire.

If it's not on the surface and it is a pressure treated post, it might be the pressure-treating solution bleeding through. When you use pressure treated wood and want to paint it, you need first to let it dry thoroughly, then prime it before painting.

Answer 4

The post is probably pressure treated wood. Now days that is done with copper. When it oxidizes it turns green. The wood was probably still wet when you painted it Let it dry out and repaint it with a stain blocking primer first.

Answer 5

MOLD

MOLDY MOLD MOLD

you might need a new wood post or try to go for a metle one with a nice finish

Answer 6

may be some sort of rot or whatnot. if you have a local ace hardware store, i am confident they would be able to assist you and show you how to correct the problem

Answer 7

Does your area is covered by humidity?
it might be green muck

--
Trilochan Kaur
www.gardeningcare.co.nr

Answer 8

spray it down with bleach