My experience is that new ceder tends to bleed through latex paint, so it need to be sealed before painting. Might take 2 coats over the primer to eliminate that. Oil based paint over oil based primer, latex paint over latex primer.
I’ll be doing just that combination on my deck railings - oil primer and semigloss exterior concrete block grade latex for color.Oil primer on everything. In fact you can use waterborne coatings over oil primers, but not the reverse.
My experience here in the PNW is that waterbased coatings are a miserable failure for exterior use. Especially on horizontal surfaces like railing caps. Waste of money on decks and stairs.
Just my opinion
This is an obvious case of where paint quality can be depended on if we make the investment. The big box stores have all but decimated the value of latex with their lines, but the private brands do the job remarkably well. Worth paying for...I haven't had that problem with the latex paint outside. My 2 story cape cod house had latex house paint on it for 43 years none ever peeled , it got painted every 5 years. I used latex house paint on outdoor furniture and it held up better than the oil based stain on the sun deck. so when I had to replace the sundeck I used house paint and solved that problem. I always bought the best name brand paint.
Years ago when I couldn't afford to best paint, I did buy the generic brand and it didn't last 2 years, And before I could paint over it I spent a lot of time scraping, patching and sanding prep before I started to paint. That made me a believer in Name Brands.This is an obvious case of where paint quality can be depended on if we make the investment. The big box stores have all but decimated the value of latex with their lines, but the private brands do the job remarkably well. Worth paying for...
I think that the exterior paint I used was Acrilic Latex exterior paint, it was water clean up."That made me a believer in Name Brands."
I've called (Exterior) 'Latex' paint every name in the book...
I just noticed yesterday that we have a Sherwin Williams paint factory not far from here. Back in my business reporter days, I toured one of their factories down near the coast. It was incredibly clean first of all, and they were mixing batches of paint in huge vats that were formed of concrete sunk in the floor. They have a local retail store a mile or so from the factory. Looks like the new plant up here is using large tanks. Paint formulas have changed radically in the 40 years since.... I have had good luck with Sherwin Williams products personally.
white glue works too...The painters on the job always used a shellac based primer to seal crayon, sharpy ball point ink marks before painting over them.