Barrier coat or not?

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   I have had a 2006 37 Egg Harbor since new that shows significant peeling of the bottom paint. I dont know what the factory applied but over several seasons now a few different paints have been used. It has been suggested to me by a few yards here in NJ to CO2 blast down to gelcoat and use the iterprotect2000 product with a good micron overcoat. The real debate seems to be the number of coats (thickness) for each. One yard seems to think that since the Egg is a decent hull the future issue of blistering due to water absorbtion is minimal. They suggest a CO2 removal of all paint present, proper solvent cleaning, a coat of 2000 and while 'tackie' two antifouling coats. They feel that way a good adhesion of the bottom paint to the hull is what is needed. Any thoughts on this approach?

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proteus Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 17 Apr 2012 Status: Offline Points: 1	Post Options Post Reply Quote proteus Report Post Thanks(0) Quote Reply Topic: Barrier coat or not? Posted: 17 Apr 2012 at 7:46pm
	I have had a 2006 37 Egg Harbor since new that shows significant peeling of the bottom paint. I dont know what the factory applied but over several seasons now a few different paints have been used. It has been suggested to me by a few yards here in NJ to CO2 blast down to gelcoat and use the iterprotect2000 product with a good micron overcoat. The real debate seems to be the number of coats (thickness) for each. One yard seems to think that since the Egg is a decent hull the future issue of blistering due to water absorbtion is minimal. They suggest a CO2 removal of all paint present, proper solvent cleaning, a coat of 2000 and while 'tackie' two antifouling coats. They feel that way a good adhesion of the bottom paint to the hull is what is needed. Any thoughts on this approach?

Jay@Interlux Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 18 Jun 2010 Location: New Jersey Status: Offline Points: 1147	Post Options Post Reply Quote Jay@Interlux Report Post Thanks(0) Quote Reply Posted: 18 Apr 2012 at 3:15pm
	InterProtect 2000E is used for a variety of applications hence the variable 1-5 coat recommendation, see below: - 1 coat is typically used in conjunction with the Ultimate No Sand System or on a sanded gelcoat surface where it is simply used as a tie coat or on metal surfaces when applying Pacifica Plus - 2 coats are typically used to enhance adhesion on sanded gelcoat surfaces - 3 coats are typically used to enhance adhesion on sanded gelcoat surfaces or on metal surfaces when applying antifouling paints - 4 coats are typically used to achieve a full moisture barrier when applying all antifouling paints with the exception of VC Offshore and Baltoplate - 5 coats are typically used to achieve a full moisture barrier when applying racing antifouling paint such as VC Offshore and Baltoplate as you are required to sand the InterProtect 2000E with 80 grit paper prior to applying either product and the extra coat will help to ensure that you not sand off too much product, but still maintain sound adhesion All of the above would potentially be suitable for you to use. Therefore if you simply wanted to enhance ahdesion then the one system that had been recommended to you would be perfectly fine, however if you figured that there is no better time to applya barrier coat then when the bottom is bare and you are up for the bit of additional work, then I would look into the 4 coats of InterProtect and then follow up with one of the Micron antifouling paints. Hope this helps!