I wonder if I want to barrier coat my bottom if I have to
dry it out completely first ? That is is it OK to dry for 1 - 2 days
then barrier coat or am I sealing water in ?
cutt@netcom.com
epoxy barrier coat
Moderator: Jim Walsh
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Matt Cawthorne
Re: epoxy barrier coat
Arch,
It takes a long time (months) to get enough water into the hull to cause blisters and it takes a long time to get it out. Two days is not enough time. I was told by an Interlux technical person that a good method to use is to tape a square of clear plastic to the hull overnight. If you have condensation on the inside of the plastic then you have a way to go. Another way is to use a moisture meter. Don't pay attention to the absolute number, just watch the trend over a period of weeks or monts. If It stays the same then there is no point waiting any longer. If it continues to drop then keep waiting. when we did our CD-36 we let it stay out of the water over the winter from October to march before coating. The boat should dry much quicker in the summer. You will get lots of opinions on this subject. Try searching on blisters and barrier coating on this web page for a pile of postings.
Matt
mcawthor@bellatlantic.net
It takes a long time (months) to get enough water into the hull to cause blisters and it takes a long time to get it out. Two days is not enough time. I was told by an Interlux technical person that a good method to use is to tape a square of clear plastic to the hull overnight. If you have condensation on the inside of the plastic then you have a way to go. Another way is to use a moisture meter. Don't pay attention to the absolute number, just watch the trend over a period of weeks or monts. If It stays the same then there is no point waiting any longer. If it continues to drop then keep waiting. when we did our CD-36 we let it stay out of the water over the winter from October to march before coating. The boat should dry much quicker in the summer. You will get lots of opinions on this subject. Try searching on blisters and barrier coating on this web page for a pile of postings.
Matt
arch wrote: I wonder if I want to barrier coat my bottom if I have to
dry it out completely first ? That is is it OK to dry for 1 - 2 days
then barrier coat or am I sealing water in ?
mcawthor@bellatlantic.net
-
Matt Cawthorne
Re: epoxy barrier coat
Arch,
It takes a long time (months) to get enough water into the hull to cause blisters and it takes a long time to get it out. Two days is not enough time. I was told by an Interlux technical person that a good method to use is to tape a square of clear plastic to the hull overnight. If you have condensation on the inside of the plastic then you have a way to go. Another way is to use a moisture meter. Don't pay attention to the absolute number, just watch the trend over a period of weeks or monts. If It stays the same then there is no point waiting any longer. If it continues to drop then keep waiting. when we did our CD-36 we let it stay out of the water over the winter from October to march before coating. The boat should dry much quicker in the summer. You will get lots of opinions on this subject. Try searching on blisters and barrier coating on this web page for a pile of postings.
Matt
mcawthor@bellatlantic.net
It takes a long time (months) to get enough water into the hull to cause blisters and it takes a long time to get it out. Two days is not enough time. I was told by an Interlux technical person that a good method to use is to tape a square of clear plastic to the hull overnight. If you have condensation on the inside of the plastic then you have a way to go. Another way is to use a moisture meter. Don't pay attention to the absolute number, just watch the trend over a period of weeks or monts. If It stays the same then there is no point waiting any longer. If it continues to drop then keep waiting. when we did our CD-36 we let it stay out of the water over the winter from October to march before coating. The boat should dry much quicker in the summer. You will get lots of opinions on this subject. Try searching on blisters and barrier coating on this web page for a pile of postings.
Matt
arch wrote: I wonder if I want to barrier coat my bottom if I have to
dry it out completely first ? That is is it OK to dry for 1 - 2 days
then barrier coat or am I sealing water in ?
mcawthor@bellatlantic.net