Interlux 2000e how long will it last

[freshalaska]

If properly applying this barrier coat and to the recommended thickness how many years can a person expect to have a proper waterproof barrier in warm tropical waters.
Probably kind of a loaded question but please have at it.

[s/v Jedi]

Originally Posted by freshalaska

If properly applying this barrier coat and to the recommended thickness how many years can a person expect to have a proper waterproof barrier in warm tropical waters.
Probably kind of a loaded question but please have at it.

As long as you keep it protected with anti fouling.

[boatpoker]

Originally Posted by freshalaska

If properly applying this barrier coat and to the recommended thickness how many years can a person expect to have a proper waterproof barrier in warm tropical waters.
Probably kind of a loaded question but please have at it.

The cheapest no-name epoxy you can find is just as good as Interprotect.

[lateral]

Interprotect is easier to use and sands better.
I did a 100% solids west and left it too long before removing the amine and abraiding & it was a prick of a job. I would guess that the no diluent epoxy would be more water resistant than IP.

[s/v Jedi]

I have used lots of these products and the differences are major. While I like TotalProtect, for the hull I would still prefer Interprotect 2000 because I believe the addition of mica flakes provides superior protection.

I also think using West System epoxy with their barrier coat additive is better for equal thickness, but it is wildly more labor intensive and also risky due to amine blush.

The OP asked about longevity and they all are for life if the prep was done good and the coat is protected against UV by always having a good coat of antifouling.

I did loose my antifouling at some spots on the hull (Micron 66 falls off when exposed to fresh water like from a grey water discharge standpipe) so I simply scraped and sanded those spots, added a layer of IP2000 and hot-coated that with the new antifouling, using ABC3 this time.

[freshalaska]

Great information and thank you all.

[boatpoker]

Originally Posted by lateral

Interprotect is easier to use and sands better.
I did a 100% solids west and left it too long before removing the amine and abraiding & it was a prick of a job. I would guess that the no diluent epoxy would be more water resistant than IP.

Should have used non-blushing epoxy.
I've done three boats this way and never had an issue.

[Scrimshaw4]

I had it fail in less than 6 years. When it fails it traps moisture and enhances blisters. I subsequently had Sherwin Williams Formula 150. It's a two part (A & B)epoxy originally formulated for the Navy. I have had it on for 21 years and my hull is still dry. JMHO

[Kello]

Originally Posted by Scrimshaw4

I had it fail in less than 6 years. When it fails it traps moisture and enhances blisters. I subsequently had Sherwin Williams Formula 150. It's a two part (A & B)epoxy originally formulated for the Navy. I have had it on for 21 years and my hull is still dry. JMHO

Well, Hmmm !

Any idea why it failed? Did YOU apply it? Some Yard Monkey? About six years ago I barrier coated my hull with it ... I had many things to do during that haulout and was willing to skip lunch for the next six months to pay a yard monkey to apply the barrier coat. So the BEST painter in the yard was assigned to barrier coat my hull because there wasn't any other work for him the next week. While I'm talking to him about the problems he is having with Coat #1, he drops his paint brush, picks it up (covered with filthy smutz) and puts it back in the container of barrier coat.

After having a (useless) bitch session in the yard office, the next day I started the remainder of the barrier coatings ... and found the first coating the Yard Monkey had done was ... gummy ... In hindsight I should have stripped it off instead of not terminating some idiots.

Since then, many days I think about going to some 3rd world yard and stripping off that barrier coat, letting the hull dry for a few months, and applying a different barrier coat. The Interlux was expensive and a nuisance to use, my water tanks are coated with West System, and (AFAIK) doing perfect after 8 years. No price online for the Sherman Williams MIL-DTL-24441, Type III, or MIL-DTL-24441, Type IV, regardless, the "low voc" label has me thinking it might be Politically Green Sh!t.

Why isn't there a "pulling out your hair" emoticon?

[freshalaska]

In my original post I stated if properly applied. I find it hard to believe if applied properly it could fail in 6 years. Maybe extremely old paint or applied over a wet hull or dirty waxy hull or during the rain. You need to rough up the hull some sanding first. I don’t know doesn’t make sense to me. Guess it could have been a very inferior batch of barrier coat from the manufacture. I suppose these things happen.

[Nicholson58]

Originally Posted by freshalaska

If properly applying this barrier coat and to the recommended thickness how many years can a person expect to have a proper waterproof barrier in warm tropical waters.
Probably kind of a loaded question but please have at it.

6 coats applied 11 years ago on an aggressively restored bottom including thousands of tiny gel only blisters and seven serious delaminations. We have lived on anchor for eight years in the eastern Caribbean. There are ZERO repeats or new blisters. 40 years old hull. The stuff is the best.

[s/v Jedi]

Yes, the stories that tell of failed barrier coats are stories of failed prep or failed application method.

[Scrimshaw4]

The Interlux was put on at the factory by the builder / designer. They applied 3 coats.

[stormalong]

I bought my boat in October 1990. It has about 400 blisters most smaller than a dime. A few as large as a quarter. It had a failed West system barrier coat. Most blisters were at the gelcoat-laminate layer a few were a little deeper.

It was trucked to my old hometown, Chicago - not a warm place. The blisters were all carved out and the boat was left to dry over the winter. In the spring the bottom was sanded to remove the bottom paint, the blisters were ground out to a clean surface and filled with epoxy filler. Five coats of Interprotect 2000 were applied.

Flash forward to 2008. A few blisters were found - not many. I stripped the bottom, ground out and filled the blisters and applied five more coats of Interprotect 2000. I still have the boat and have not had a blister since.

I am very pleased with the results. The professionally applied West epoxy fix failed within in a year or two. The boat was less than five years old when I bought it and the price came down considerably when the boat was hauled for the survey. My DIY Interprotect job was a lot of labor - I had help from friends and family. The materials were not all that much money.

[freshalaska]

If a hull not completely dried out, which is hard to do, blisters can form under a Barrier coat even though the barrier coat is still keeping water out. Some boats will continue to blister no mater how good the barrier coat is. The barrier coat just slows it down.