Painting garage walls

[robbyvrs]

I had a new sectional detached garage built a couple of years ago and decided to board the inside out.
I used kingspan insulation on the roof, insulation sheeting on the insides of the metal doors and fitted moisture resistant chipboard on the walls.
This looked great but not there are signs of moisture (from before i started using a de-humidifier) and marks on the walls so i'm wanting to paint them white.
Reading on the net there seems to be no specific answer what type of paint to use on moisture resistant chipboard so i'm stuck?

Options are
to try a wood primer them acrylic paint and hope it look good?
or - go over chipboard with plywood sheets before painting them?

I don't want to have to paint several coats to get a nice finish so should i use the chipboard as i'm guessing it'll be easier to paint?

Pic of garage as it is now (22ft x x10ft)

 

[7th Kahuna]

I'm not aware of any issues painting moisture resistant chip board. Use a good quality primer and you should be fine. If you have specific concerns, go to a proper paint store and ask for their recommendations. They make a paint to stick to just about anything today.

A few years back, Toys-R-Us asked my company to paint their checkout counters as part of a larger remodel. I thought they were crazy, the counters were plastic laminate. My painter knew just what to do and the resulting counters held up pretty well. Chip board should be easy by comparison.