Marine paint cost several times as much as house paint of similar composition. I worked for a major chemical company that also made paint and knew that the paint on which they spent the most on research and made them the most money was house paint. Houses are out in the weather all year long � no winter covers or inside storage. House owners expect to repaint them infrequently, such as every ten years or so. They also expect a good paint job will require little preparation before repainting.
Back then the only house paints were oil-based paints, so my yacht was painted with top quality oil-based house paint. All paints consist of binders or resins, pigments, solvents, and additives. The binder forms the film that sticks to the boat and holds the pigment there.
The pigments color the paint, make it opaque and have a good deal to do with UV resistance. Solvents keep the binder dispersed or dissolved and the pigments dispersed in an easy to apply state. They allow the paint to be applied in the correct thickness and then these solvents evaporate from the paint film as it dries. Mineral spirits, a petroleum distillate fraction, is the most common solvent in oil-based paints.
In latex paints, water is the major fluid. It does not dissolve the latex particles, but disperses them in suspension. Small amounts of special solvents are present to control the coalescence of the latex particles into a tough, tenacious film and to slow down the drying of the latex paint.
They are more durable and tougher. They resist chalking and fading, retaining their color especially well when exposed to bright sun. They are easier to apply, going on more smoothly and with less brush drag. They have less tendency to grow mildew. They have almost no odor and no fire hazard. Cleanup is with water. They can be re-coated in as little as one hour. The weather resistance of these polymers parallels that of the acrylic molding powders that make red automobile taillight and stoplight lenses that last forever without fading.
All of the products are available as custom colors mixed to your desire. What kind of a paint schedule can you use to get it in the water next weekend? You can do the outside in one day, the inside the next, and give it a couple of days before you launch it. Here is the schedule. Sand it all over with 60 grit sandpaper and clean up the dust. Put on a coat of latex primer. That will raise some hairy fuzz, so after drying a couple of hours give it a once over with 60 grit to defuzz it.
Put on a coat of your exterior latex paint. Gloss is the toughest and most durable, but also shows surface imperfections best. Semi gloss is almost as tough, durable, and easy to clean as gloss while not showing surface imperfections. For me, it is the usual pick.
I have stayed away from flat paint. That finishes half of the boat. The next morning turn it over and repeat the schedule for the other half of the boat. If you use two colors on the outside of the boat, you will add another day to the painting. If you use different colors for the bottom and the side on the inside and have a steady enough hand to cut it in at the chine you can do it in one day.
A posting on the rec. Look around your neighborhood. All those houses painted with latex paint sit out in the weather all the time. My boats live in the water with their latex paint jobs. How long is the latex paint job going to last?
My sailing skiff that lives in the water was three years old this spring. The inside, especially the bottom, was scroungy from bilge water and having been through two hurricanes, so I gave it a one coat repaint job this spring. It looked great until another hurricane messed it up again.
It looks pretty scroungy, but the interesting thing is that while the paint on the wood has been scoured off by hurricane winds and general wear the paint on the epoxy-fiberglass joints inside is perfectly intact and looks great. A fellow who was donating a boat to our local museum told me he had the real secret to boat painting. He had painted a production plywood boat with latex primer and latex paint.
He was sanding the paint off and found it was almost impossible to remove the last traces of the latex primer because it had penetrated the wood to some degree.
Well, nothing soaks into wood like water and some of the pigment particles are bound to be carried along with the water vehicle of the latex paint. When I rebuilt my Simmons Sea-Skiff 20 I used a heat gun and a wide chisel to remove about a dozen layers of old oil paint.
It has been three years and three hurricanes ridden out on the mooring since the boat was launched. Except where the boat has rubbed fenders or the edge of the float and on the cockpit floorboards the paint is in first class shape.
I do need to repaint the floorboards. I believe I will try it. Thomas Firth Jones, boat designer, boatbuilder, and author of Boats To Go wrote in Boatbuilder several years ago that he preferred latex paint over oil paint for boats for all of the reasons cited above. He did comment that he paints his tiller with oil-based paint because the latex paint stains there. Boatbuilders are traditionalists and it has been a hard sell to get them to accept plywood, stitch-and-glue construction, epoxy adhesives, and other similar innovations.
Your Thoughts? I recently bought a 21 ft. The boat had been moored for 6 months and when it was pulled out it became apparent that the paint below the waterline had deteriorated and was coming off in sheets.
We do have exterior waterbased acrylic paints such as Dulux Weathershield, British Paints and Solver also make exterior acrylic paints with warranties of up to 25 years.. Perhaps you can contact the paint manufacturer. The St. More than just being a mouthful to say, the paint is much easier to work with than oil-based enamel, durable, easier to apply than poly, and relatively inexpensive. Read their story here. Your email address will not be published.
The Latest. Latex Paint for Boats??? If you enjoyed this article, please consider sharing it! Rolf Koens says:. April 29, at pm. Gayle Brantuk says:. June 6, at pm. Kurt Uetz says:. April 5, at pm. John B says:. April 7, at am. April 1, at am. Leave a Reply Cancel reply Your email address will not be published.
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12.05.2021 at 22:17:43 Have been cruising with their boat.
12.05.2021 at 14:46:29 Plush comfort and outstanding non-slip painting.