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Not happy with Interprotect 2000 application

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JimmyC View Drop Down
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    Posted: 03 Jun 2012 at 4:59pm
I put two coats of interprotect 2000 on well prepared fiberglass but am not too happy with the way it is coming out and need some advice on how to go forward.

There are three problems. First a roller shed pretty bad and I have roller lint in the paint.  Second, the paint has very heavy orange peel. Third when sanding the lint/orange peel out with the long board I see I have some low areas (which I expected).

The lint sands off with a light pass, so that is not much of a problem, but sanding the orange peel out is a lot of work and gets me back down to fiberglass on places.

My intention at this time was to fair the low spots with watertight but I still have the orange peel.

Can I knock the high points off with a long board, fill the low areas with watertight, paint the whole thing with Epoxy Primecoat, sand with the long board and then continue with the interprotect?

Is there a way to avoid orange peel with 2000? Would a foam roller help?

Can I interlayer Epoxy Primekote, Interprotect, and watertight without worrying too much?,

Jimmy C
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JimmyC View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JimmyC Quote  Post ReplyReply Direct Link To This Post Posted: 03 Jun 2012 at 9:25pm
Other stuff I forgot to mention:

It was hot, upper 90s.

I did not thin the first coat.

I thinned the 2nd coat with 2333N, about 2 cap full per gallon to start and added more later as the paint seemed to be loosing thinner.
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Jay@Interlux View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jay@Interlux Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jun 2012 at 10:42am
Hi Jimmy,
Due to the fact that InterProtect 2000E contains micro-plates, you will generally see a bit of stipple/texture in each coat of InterProtect 2000E and there isn't much of a way to get around that since it's pretty much the nature of the coating. Sometimes the product will setup very quickly which will prevent the micro-plates from laying down altogether which can sometimes cause a much worse looking finish and that would be where the addition of some thinner would be beneficial. You can safely add in 10% by volume of the 2333N without negatively effecting the performance of the InterProtect 2000E, which equals out to just under 13 ounces per mixed gallon of material. And if you need to add more thinner during the application, that is when you add in capfuls.
 
I would recommend that you do not attempt use a foam roller with InterProtect 2000E as the you will not achieve a smoother finish, but you will also be applying less material per coat which means that it will be a thinner coat which in turn will result in less barrier coat protection and very quick overcoating times. Therefore in order to achieve the full barrier coat protection with the same # of coats (4-5) I would recommend that you stick with a 3/8" nap roller, but one which is solvent resistant to help reduce/prevent shedding of the roller.
 
It is potentially possible for you to use Epoxy Primekote overtop of InterProtect 2000E but it will not offer the same barrier coat protection, so you will achieve a smoother finish, but thats really about it.
 
 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JimmyC Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jul 2012 at 11:39am
Hi Jay,

I added thinner, painted first thing in the morning when it was cooler, and didn't use a fan and the paint went on much better.
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Jay@Interlux View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jay@Interlux Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jul 2012 at 12:33pm
Hi Jimmy,
Sounds great and thanks for the follow up!
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HARMONY12 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote HARMONY12 Quote  Post ReplyReply Direct Link To This Post Posted: 08 Aug 2012 at 9:39am
MORNING JAY, FIRST TIME ON THE FORUM, HOPE THIS GETS TO YOU....APPLIED IP2K THREE YEARS AGO, FOLLOWED PROCEDURES CORRECTLY, NO ISSUES...HAULED OUT THIS APRIL - PORTSIDE AS HUNDREDS OF SMALL(VERY SMALL!!)BLISTERS, NOT A ONE ON THE STBD SIDE..SANDED THE ANTIFOULING OFF, WASHED HULL, NOW WANT TO RECOAT PORT SIDE W/IP2K AGAIN....I WOULD THINK NO PROBLEM OVERCOATING EXISTING BARRIER COAT ONCE SANDED AND WASHED...CORRECT???

AN OLD SAILOR
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Jay@Interlux View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jay@Interlux Quote  Post ReplyReply Direct Link To This Post Posted: 08 Aug 2012 at 9:51am
Sure you can freshy apply some InterProtect 2000E overtop of some aged/existing InterProtect 2000E with no issues at all. Just be sure to give that existing InterProtect 2000E a good and thorough sanding with 80 grit paper and remove all sanding residue with 202 or 2316N prior to re-applying InterProtect 2000E.
 
Hope this helps!
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HARMONY12 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote HARMONY12 Quote  Post ReplyReply Direct Link To This Post Posted: 09 Aug 2012 at 7:50am
Thanks Jay, Any thoughts/experience on why one side of the hull saw these small blisters and the other side didn't???

Frank
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jay@Interlux Quote  Post ReplyReply Direct Link To This Post Posted: 09 Aug 2012 at 9:19am
Hi Frank,
The likely reasoning as to why some blistering has re-appeared on the port side would be due to the fact that the hull was not completely dry prior to being coated. Once the hull has been re-coated that moisture will now remain trapped within the hull until it begins it's attempt its plan of escape by evaporating back out, but unfortunately at that time it will be leaving in the form of a blister, hence what you are presently and unfortunately experiencing now.
 
Hope this helps some more.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote HARMONY12 Quote  Post ReplyReply Direct Link To This Post Posted: 10 Aug 2012 at 6:59am
Thanks J, I suspected as much.... HARMONY, A 1980 vintage IS Freeport sat on the hard for 9 months during the hotest summer on record about 3 years ago...However the port side faced north...the sun rose on the bow, set on the stern and the stbd side was bathed in sunlight all day...I cleaned out and filled literally a 1000 blisters on the entire hull and not a one of those came back..This time, I've had the boat placed where the port side recieves the most sun...we'll see what it looks like in another 3 years!!!

Frank
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