barrier coat or not?
- Thread starter richk
- Start date
Barrier Coat
A barrier coat on an old hull has served me pretty well for 10 years. I still get a few blisters when the boat comes out every two years. But it was a huge improvement over the original situation. So, what could it hurt...right? Perhaps your wallet of course but how about the manufacturers warranty.
Getting the mold release agent completely off and a light sanding to achieve a slight tooth for the barrier coat to adhere to may not sit well with your warranty. Just my $.02 cents.
A barrier coat on an old hull has served me pretty well for 10 years. I still get a few blisters when the boat comes out every two years. But it was a huge improvement over the original situation. So, what could it hurt...right? Perhaps your wallet of course but how about the manufacturers warranty.
Getting the mold release agent completely off and a light sanding to achieve a slight tooth for the barrier coat to adhere to may not sit well with your warranty. Just my $.02 cents.
If Only ...............................
.............................. I'd had the knowledge to barrier coat my new (from the factory) hull when it arrived. I'd probably have a much lower copper content in my blood stream than I have now. I can still taste it
.
Back in 1998, I wasn't on this site and relied on my dealer for much of my "technical boat knowledge". He was an idiot, pure and simple.
Over the next five years, I repeatedly lost about 20% of my bottom coat by each annual haulout as the chemical etching of the bottom was simply not rough enough to grab the bottom paint. Sanding wasn't allowed or the hull warranty was void.
Spent about a week sanding off the bottom paint that DID want to stick and it was Nightmare on Elm Street with Freddy Kruger chasing me around the boat every night in my dreams. I was blue, the deck was blue, and most of all, the air was blue. I still can't believe I didn't hire someone to sand the bottom.
The main purpose of the barrier was to provide a bottom surface which would hold bottom paint. The few barnacles I did manage to pick up (in the bare areas) really knew how to chew a hole in the FG.
Anyways, another eight years later and all is well. Even if I hadn't had the flaky paint problem, why wait until your FG bottom is saturated and then start worrying about barrier coating. If only I knew then what I know now, I would have barrier coated BEFORE it hit the water.
Do yourself the biggest favour you'll ever do for your boat and barrier coat NOW.
PS. don't forget to make your first bottom coat (against the barrier) a different colour than the final coats.
.............................. I'd had the knowledge to barrier coat my new (from the factory) hull when it arrived. I'd probably have a much lower copper content in my blood stream than I have now. I can still taste it
.Back in 1998, I wasn't on this site and relied on my dealer for much of my "technical boat knowledge". He was an idiot, pure and simple.
Over the next five years, I repeatedly lost about 20% of my bottom coat by each annual haulout as the chemical etching of the bottom was simply not rough enough to grab the bottom paint. Sanding wasn't allowed or the hull warranty was void.
Spent about a week sanding off the bottom paint that DID want to stick and it was Nightmare on Elm Street with Freddy Kruger chasing me around the boat every night in my dreams. I was blue, the deck was blue, and most of all, the air was blue. I still can't believe I didn't hire someone to sand the bottom.
The main purpose of the barrier was to provide a bottom surface which would hold bottom paint. The few barnacles I did manage to pick up (in the bare areas) really knew how to chew a hole in the FG.
Anyways, another eight years later and all is well. Even if I hadn't had the flaky paint problem, why wait until your FG bottom is saturated and then start worrying about barrier coating. If only I knew then what I know now, I would have barrier coated BEFORE it hit the water.
Do yourself the biggest favour you'll ever do for your boat and barrier coat NOW.
PS. don't forget to make your first bottom coat (against the barrier) a different colour than the final coats.
richk,
I concur. I sanded the bottom free from blisters and applied a barrier coat to seal the hull and then painted. I am currently a few miles away and know a guy with a 35 Legend in Smithfield. I would be glad to discuss your boat with you or help you work on it. Message me your thoughts.
splax
I concur. I sanded the bottom free from blisters and applied a barrier coat to seal the hull and then painted. I am currently a few miles away and know a guy with a 35 Legend in Smithfield. I would be glad to discuss your boat with you or help you work on it. Message me your thoughts.
splax
