Posted by steve on May 07, 2003 at 04:59:12:
In Reply to: Re: Latex house paint on boats posted by RonW on March 31, 2003 at 14:12:11:
: : I must make one rebuttal here: You mention "may have to strip it down to bare wood". But all our boat are epoxy encapsulated! In essence, they already ARE painted with epoxy paint! The latex is just a beauty coating, plus UV shield and anti-fouling.
: -I will come back to you Jim.What i meant in stripping to wood did not include the cloth, but my point was house paint is thick and after a couple of repaints you will end up with a thick layer.House paint is thick for a reason, to withstand hail storms and balls from kids, and to hide blemishes in your siding.If you just painted your house you wouldn't use the same house paint on your wooden porch floor, because in about a year it would blister and bubble from water standing on it,and the mailman would wear it down to bare wood in no time just walking to the mailbox due to low abrasion resistance.There is a big difference in water repellent between a vertical application and a horizontal application.
: Your abrasion is not only going to be on the bottom of the boat, but also on the floor that you walk on and slide coolers around on.There is also a discussion on the wooden boat board, and they do not favor house paint. Stating the same, low abrasion resistance and too much emersion allowing water absorption.As far as painting cabins, i would think it is fine, but i humbly dissagree with the bottom, outside and interior floor. Also i think you will find that epoxy and marine paints are very thin and cover 3 times the square footage,so $90. a gallon is equivalent in price to $30. a gallon house paint.I am sorry but i think it is a penny pinching dollar poor decision.And i think in about 5 years the discussion on these boards will state that it was tried and didn't fare all that well.I have been on this site for over 3 years and have read everything at least twice and looked at all the pictures 7 to 10 times and have thouroghly enjoyed myself, as well as learn and pick up a lot of tips. I commend Barry and say without hestitation this has to be the best and most informative boat site on the internet. Thanks. I have just been shy about saying anything, but got to dissagree with this one. I am 48 and don't want to paint the house or every couple of years have to repaint the boat, I don't even want to cut the grass, just go fishing.
My goodness! Stop the madness!!!...lol Ok Mr. Contractor, (no offence but I am not fond of contractors), I agree with you about latex below the waterline. As far as latex house paint being porous that stands to reason as latex is a porous rubber, but what about acrilic latex? acrylic is not porous. As far as spending $90.00/gl. for epoxy paint, this is just nuts for a topcoat. For a few bucks more, maybe $20.00 or so, you can get 100% catalyzed polyurethane. There aint much better than this! I wouldn't recommend anything epoxy exposed to sunlight, however, catalyzed epoxy makes an excellent primer. If I were to build a large expensive boat I would use a self-etch primer, epoxy primer/sealer, and catalyzed polyurethane or acrlic urethane as a top coat. For a smaller trailered boat I would consider 100% acrilic latex after researching compatable premium primers. These porches you wouldn't paint? are they stripped and primed? and the coolers/abrasion issue?, nothing some non skid added to the paint wont fix. Any paint job wil not last if the prep work is shoddy. I cannot emphasize enough the importance of a clean, well prepared, and adequately primmed substrate. I feel sorry for the poor guy who had his house painted by some contractor who just scrubbed and topcoated. Hey, as long as they got paid right?