Working on my bottom

[bsavulis]

I am very close to being ready to apply the barrier coat to the hull of my H27. I plan on 4 coats of Interlux 2000 and then three coats of abalative bottom paint.

I have 2 questions....
How do you deal with the stands when applying the barrier. To avoid sanding between coats I am told to apply the next coat when previous coat is still slightly tacky. But if I move the stands at this point won't I risk epoxying a stand to my hull?

If I do have to sand between coats, how much is enough?

Thanks
Brian

 

[sailingdog]

I wrote this up for another forum on barrier coating with IP2KE...

Alternating the colors helps a lot with determining where you've painted, but it is also very useful for helping you coat the areas around the boat stands. For instance:

The first layer is gray, since the gelcoat is white, and you can paint right up to the boat stand pads. Then you paint a layer of white, and leave about a two-inch margin of gray paint around the pads... then paint a layer a gray and leave a four-inch margin around the pads or about two-inches of white and two inches of gray showing...and then finish with a layer of white—with a six-inch margin around the pads—with two inches of gray, two inches of white and two inches of gray.

Then when you move the boat stands, you can fill in the pads and layer the paint accordingly... adding gray to cover the white square left by the pad.. then white to cover the gray square, and so on.

Also, by alternating colors, you can see if someone has sanded through the barrier coat when you're prepping the boat for re-painting. If there's an area that is gray or grayish, they've sanded through at least the outermost layer of barrier coat. If you had all white, you wouldn't be able to tell if they had sanded down through the barrier coat as easily—if you had all gray, you could tell they sanded through the barrier coat...but not if they've sanded into it...

I hope this helps clear things up a bit.

You shouldn't need to sand between coats provided the coats are within the times listed on the IP2KE instructions for application.

 

[Bad Obsession]

The pads are such a pain in the butt. The last marina I was at wouldn't move the jackstands until they had the boat on the lift. This was a major irritation. Places in the past would come around and move the jackstands once for you for no charge. The process didn't look too bad either.

One thing that I saw at a nice marina in deltaville was that they put a piece of wax paper over the pad when they moved it (this kept it from sticking to the new bottom paint. They also put wax paper over the slings when they lifted the boat to drop it back in. It saved having marks on the hull from the straps and it helps the paint on the bottom as well. The wax paper is the stuff you commonly find in the grocery store.

 

[dvideohd]

Wax paper.. good idea...

An extra set of stands might make easier to do yourself.....

 

[sailingdog]

If you're going to use the wax paper... you do have to de-wax the hull between applications, since you don't want any trace contamination from the wax paper to cause the barrier coat to not stick properly.