What to use for Primer

[Duke 7184]

The blister repairs on the hull and rudder will soon be completed. So, now I'm looking for recomendations on what to used between the gelcoat and the anti fouling paint.
Your input is appreciated.
Duke

[Faster]

We've had good luck with Interlux Interprotect. It was suggested to us to put on as many coats as you could up to 6 - 8. We did that after a relatively mild blistering condition/repair, and it's still good 5 years later.

btw this is meant to be a barrier coat.

[camaraderie]

Ditto...we had two coats put on after stripping our bottom 2 years ago (no blisters!) ,and we still have none despite constant immersion in warm salt water since.

[firehoser75]

My yacht broker used Interlux Interprotect barrier coat on my new boat 2 years ago. They followed Interlux's directions and used 5 coats, followed by 2 coats of anti-fouling. It is supposed to act as a "water proof" barrier and prevent blistering, as all fibreglass will slowly absorb water over time without something like this.
So far no problems, but it is only 2 years.
Hope this helps,

Tom

[Goodnewsboy]

Interprotect was used on mine with great results. Pettit has a competitive product. The key ingredient is epoxy resin which cures to form the moisture barrier.

Whatever you use, put on at least the recommended dry mil thickness, no matter how many coats it takes.

[Duke 7184]

Thanks for the input. I had been considering the Intelux Interprotect, but decided to see if there were aother products I should investigate. I am still open to suggestions.
Duke

[billangiep]

Duke.
A good link to Interlux products..... click on the Interprotect bulleton... http://www.yachtpaint.com/usa/
Bill,

[IslandRaider]

Awlgrip has a pretty good system,that I am using on a 42' custom morgan that has minor gelcoat blistering. have used it on the runabout with pretty good results.

[tigerregis]

I used Interlux 1000 in 1990. The boat was in fresh water for 9 years and has been in salt(brackish) for seven. There is no sign of blisters. This is one product that seems to deliver. Highly recommended as it is an economical prophilactic. IMHO.

[T37Chef]

I have just used the Petit barrier coat product this past spring...we'll see how its doing by this spring.

You should apply your first coat of bottom paint before the final barrier coat dries and cures so you get them "bonded" together. Also, using different colors for the two coatings of bottom paint will aid in knowing when to apply another coat at the next hauling.

Good luck.