How can I keep paint on the trim of my ocean-front house?

This link has some answers for you:

https://www.jlconline.com/how-to/exteriors/painting-the-coastal-home_o

Oil based marine paint would work, it is very durable. Rustoleum is a good brand.

I would take the advice about using marine paint. Prep the trim well, apply a primer, then marine paint which should last longer than a regular paint.

Experts recommend acrylic latex paints. A few decades ago, oil-based topcoats had a long lifespan. Painting contractors who specialize in painting coastal homes rarely used anything but oil-based paint because it provided better protection compared to latex paint. Nowadays, people complain that oil-based paints don’t last nearly as long. Unlike oil-based paints, acrylic latex paints have improved over the years. Not only do latex paints do a better job, but they also last longer and look better. They have improved so much that a touch-up won’t be necessary for about 5 years.

Prepping the Surface Properly is Critical

In a coastal environment it is extremely important that the surface you’re painting or staining is prepped properly. All peeling paint should be sanded off and sanded to ensure complete removal. Look for signs of warping or rotting wood and replace if necessary.

Painting over damaged surfaces results in a shorter duration between repairs and perhaps further damage to the surface underneath if, for example, mold or moisture becomes trapped in the wood underneath the paint. Also, the paint may not adhere to the surface as well.

Marine paint would be the best. Proper prep is the key. You can also use a floor and porch enamel

I hope you find out the perfect solution. We have a water front lake location and the pressure treated decking needs paint staining every year. It is a nightmare.

We have a similar problem due to extreme sun exposure and the first paint was not good quality. I had to scrape and remove all the existing then prime and paint. Sherwin Williams fixed our issue.

Marine enamel is very waterproof, but is not necessarily protected from UV rays, something to consider.

I would try marine paint. The salt water is just so corrosive that a house near the ocean is bound to have upkeep like this.

I think that’s what I’ll do. With so much of the cost of painting being the what it is, absolutely must get the paint to stay in place longer.

You could try replacing the trim with tree deck and you won’t have to ever paint it again

It’s the salt that’s eating it away

Marine paint is meant for water. Your problem is probably sand and salt water. I would try the marine paint