View Full Version : Antifouling Paint?
09-25-2007, 03:03 PM
I am trying to pick an antifoulding paint for my boat and I don't get the difference between the different types.
What is the difference between these? Ablative Antifouling and
Hard Antifouling Paints.
09-25-2007, 04:10 PM
The short answer to your question is Hard Antifouling Paints are designed to leach out evenly over the season. While Alblative Antifouling Paints are designed to wash away like a bar of soap over throughout the season.
Please call us if you have any questions. 877-388-2628
Now for the long explanation:
HARD ANTIFOULINGS - The technical term for these types of antifouling paints is contact leaching. The paint dries to a porous film that is packed with biocides, which leach out on contact with water to prevent fouling growth. This leaching is chemically designed to release biocide throughout the season, but the amount will steadily decrease until there is not enough biocide coming out of the paint film to maintain fouling protection. Once the biocide is exhausted, the hard paint film remains on the boat. Hard antifoulings do not retain their antifouling ability out of the water and cannot be hauled and relaunched without repainting. One of the main benefits of this type of antifouling is its resistance to abrasion and rubbing. This makes it ideal for fast powerboats, racing sailboats or boats where the owners have the bottoms scrubbed regularly. Most hard antifouling paints can be wet sanded and burnished prior to launch to reduce drag and improve hull speed.
ABLATIVE ANTIFOULINGS -Ablative Antifoulings wear away with use, which reduces paint build-up. This reduces the maintenance and preparation needed when it is time to apply more antifouling paint and ends the annual ritual of sanding. Ablative Antifoulings, such as Fiberglass Bottomkote ACT not only provide excellent antifouling properties but also can be applied over most other antifouling paints.
09-27-2007, 01:37 AM
Which bottom paint for aluminum boats? How about the drive?
I've been told that standard antifouling paints can cause a battery effect and actually promote corrosion?
09-27-2007, 07:29 AM
My question is: is bottom paint nessesary for trailered boats used in fresh water? Also on the topic of paint, whats the difference in topside marine paints and quality oil paints from the hardware store (aside from the $20 a quart difference)?
09-27-2007, 08:32 AM
In my opinion, a boat that is in fresh water and trailered does not need bottom paint.
Your other question about top side paints is a good one, you got me there.
Have a Great Day
09-27-2007, 03:18 PM
As far as marine paint you don't have to use a marine paint but there are advantages. Most of the marine paints we sell are a singular polyurethane making it very easy to work with. There is no mixing, they have a high UV rating very easy to apply and flow out very well. The paint is made to handle the flexing of the hull and the constant use in water. I think you will be very happy with the longevity and durability of the paint. Here is a link to our Topside Paints.
09-27-2007, 03:29 PM
You are correct the last thing you want to put on your boat is standard bottom paint. We recommend Interlux Trilux 33 it is an excellent aluminum bottom paint.
For the outdrive we recommend Trilux Prop & Drive paint. Please note that if the drive has not been previously paint with the antifouling paint you must use the Primcon Primer 2 coats or the paint will not hold up. Here is a couple of links for those products.
04-06-2008, 11:31 PM
Your explanation post above implies that all ablatives are suitable for trailered boats. Is that correct?
We have a fiberglass 24' express cruiser which is normally in a slip, but we trailer it about four times a year. Each time it will remain dry from one to ten days, depending on our schedule and location we are going. Our slip is in fresh water, and we trailer to salt twice a year, where it will be in the water for about a week at a time. The boat currently has a black ablative that is due for recoating (I don't know which specific paint was used in the past). The lake we are slipped in has a Quagga mussel problem and a medium amount of slime/algae growth. Water temps range from 85 in summer down to 60 in winter.
What do you recommend? I would prefer longer-lasting and most effective over cheap. Considering the labor involved, paint cost is not an issue at all. I don't really have any color preference.
04-08-2008, 09:51 AM
Since you don't know what type of paint was on your boat before and you are going to be in fresh and salt water I would recommend using an Ablative paint.
The best paint for your application is probably Fiberglass Bottomkote ACT. This paint can be used in both salt water and fresh water. It can also be applied over most other antifouling paints and it is good for boats that will be trailered.
Thank you for your question and if you have any concerns just give us a call,
09-01-2008, 06:27 PM
Help ,I have a 1964 Bostan Whaler that I found in a ditch. It had a Basket Ball size hole in one side. Now I need to Paint it inside an out. What Primer an Paint do you suggest I use. Thanks Paul@ email@example.com
09-10-2008, 11:00 AM
What you use really depends on where the hole is. If it's above your water line, you can use Interlux's Brightside primer and then go over it with the Brightside white paint. If it's below the waterline and stays in the water, you may want to spray gel over the repair. I believe if you are not staying in the water very long you can get away with using topside paint on the bottom. What model Whaler is it?
04-07-2009, 10:06 PM
I Have a Pontoon Boat Purchased new in 2007.I am due for bottom paint. I keep the boat docked in salt water. I was told I would have to remove all the old paint before recoating. Is this correct and if so can you recommend the proper removal and application procedure and products I should use. THANK YOU VERY MUCH