Interlux promotes Interprotect as an adhesive coat and recommends that you apply the anti-fouling paint while the primer is still reactive to prevent flaking. If you allow a full cure, you were not paying attention. On older boats, where blistering was a problem, a barrier coat may help only IF the blisters were properly repaired. Otherwise, save your money.
Evidently you didn’t even read my post. The reason those boats had blisters was due to the fact that they never had a barrier coat in the first place. Gel coat today has the same osmotic principles that it had 30 years ago, which if you didn’t know, gel coat is porous and is by no means impenetrable to water ingress. If you did read my post you would see the part where I mentioned a chemical bond between the barrier coat and the bottom paint which is only obtained when the barrier coat is tacky, known as a “hot coat” which I explained in my post. I also mention the steps you would take if you in fact did let the barrier coat fully cure, which to reiterate to you, in case you didn’t read what I wrote, would be to sand down the cured barrier coat with 80 grit and then coat with your bottom paint, creating a mechanical bond. I know reading and retaining a small post can be overwhelming, so I won’t assume you actually read the technical data sheet either. Check it out, you might learn something.
Get your head out of your bucket!Evidently you didn’t even read my post. The reason those boats had blisters was due to the fact that they never had a barrier coat in the first place. Gel coat today has the same osmotic principles that it had 30 years ago, which if you didn’t know, gel coat is porous and is by no means impenetrable to water ingress. If you did read my post you would see the part where I mentioned a chemical bond between the barrier coat and the bottom paint which is only obtained when the barrier coat is tacky, known as a “hot coat” which I explained in my post. I also mention the steps you would take if you in fact did let the barrier coat fully cure, which to reiterate to you, in case you didn’t read what I wrote, would be to sand down the cured barrier coat with 80 grit and then coat with your bottom paint, creating a mechanical bond. I know reading and retaining a small post can be overwhelming, so I won’t assume you actually read the technical data sheet either. Check it out, you might learn something.
Hey you came at me for some wierd reason and I wasn't referring to any product, I was only talking about the science behind adhesion.
You totally nailed it, I haven’t been out of my armchair lately! There is so much bad misinformation spewed on this site to vulnerable people that are genuinely looking to be lead in the right direction. Most of the time I don’t have the energy to even say anything because it ends up with clowns like you in the mix. Most things people post are a matter of their own opinion and those same individuals never have any validity behind their suggestions when asked to elaborate or show any proof.
Here's the proof you requested from Interlux:
