Re: Those who have painted - Preference for one part paint
I have noticed through the years in here that most folks struggle with the decision of what paint to use. I think that most guys have a hard time believing that a paint rolled and brushed on to a surface simply cannot have a deep smooth look like sprayed paints have. Most of us are novice painters, including me, and we sometimes get the idea that the only way to get a great paint job is by spraying. Another consideration is cost. People who have sprayed cars in the past know that paint is expensive. Not to mention the cost of all the prep products and materials needed to do a good job. Roll/ tip type marine paints, like Interlux products, are somewhat expensive as well. (about $60 qt.) It is understandable why hobby painters that use spray equipment would have a hard time spending that much for a roll on paint.
I use Interlux because it works as advertised. It can be applied using rollers and brushes and will render a completely smooth, deep, shine. I think the same holds true for other marine roll on paints like Petit, Awlgrip, Epifanes, System Three and others. These paints are specifically designed to be applied using rollers and brushes. In fact, Interlux claims their paints look better when applied with hand tools rather than spray equipment.
Marine paints are also specifically designed for the marine environment. They contain U. V inhibitors to protect against constant sun. They are also far superior to automotive paints in surface durability against scratches and chemicals.
I purposely sing the praises of these paints because in my experience they work, and work well. And they look outstanding.
Given all that, there are some challenges using these paints. Most of which are minor and easily overcome. One is the equipment you use. You need to use thin nap phenolic core rollers. Some have great results using common closed cell rollers. They will work but you have to be aware that the solvents in these paints are very strong and can cause some cheaper rollers and foams to fall apart. So spend a little more for quality tools. The same holds true for the brushes you use. Cheap brushes will work but again the solvents can damage them. So if you are doing a big job change them often. The bristles also need to be very fine to aid the paint flow-out and leave a smooth surface. I recommend natural bristles (china or badger hair). I have the same badger brush I have been using for years. It has held up very well.
Another consideration is painting techniques and the conditions you paint in. Interlux provides a ton of information on how to properly apply their paint including video of the process on their website. You need to follow the guidelines the paint manufacturers provide. Unfortunately these paints are not as easy to apply as latex house paint, but it is pretty close. The paint works best if it is applied evenly with a roller then lightly tipped off with a brush to remove the bubbles left by the roller. The solvents in the paint will then cause it to flow out and cure smooth. Weather conditions can also effect that process. If there is too much moisture in the air or dew falls on under cured paint it will dull the shine. If there is wind, even slight breeze, the solvent will flash faster and it can leave brush or roller marks in the paint. Temperature can also effect it. In very hot weather it is better to add a little thinner to the paint to aid paint flow. It is always better to prep ahead of time and apply the paint early in the morning after the dew burns off and before the wind stirs up. The surface to be painted needs to be prepped smooth and paint ready before painting actually begins. Remember a good paint job is 90% prep 10% paint. Get everything ready to go before the can gets opened.
Interlux's website has great guides on using all their products. Including videos! I suggest researching it.
http://www.yachtpaint.com/usa/
I know I sound like a Interlux sales rep. I assure you I am not. I had a great time putting the paint on 'Nostalgic' and a huge sense of accomplishment. Its a feeling like none other. I want everyone in the forum to get that same sense and I believe in these products.
enjoy
drewp