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Old 23-05-2019, 03:47   #1
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Interprotect 2000 question

Hi,
I have grinded and filled tons of blisters with West System 105/205. I have sanded the hull but there is still some shiny epoxy showing up. I'm through grinding!
I plan to apply 4 coats of Interprotect 2000 before two coats of Micron CSC.

Will the Interprotect 2000 stick on the shiny dried up epoxy?

the boat is a Catalina 27.
the hull surface is like an orange..... no smooth racing hull!
Thanks
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Old 23-05-2019, 04:27   #2
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Re: Interprotect 2000 question

The shiny part of the epoxy will have amine blush which is a waxy like film, and that will need to be washed off, otherwise adhesion will be compromised. Just use soap and warm water, and give her bottom a good bath followed by a good rinse, then let her dry and you will be good to go.

I am right there with you, doing the same thing at this very moment.
https://www.facebook.com/1968.Columb...type=3&theater
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Old 23-05-2019, 05:19   #3
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Re: Interprotect 2000 question

Quote:
Originally Posted by SV Siren View Post
The shiny part of the epoxy will have amine blush which is a waxy like film, and that will need to be washed off, otherwise adhesion will be compromised. Just use soap and warm water, and give her bottom a good bath followed by a good rinse, then let her dry and you will be good to go.

I am right there with you, doing the same thing at this very moment.
https://www.facebook.com/1968.Columb...type=3&theater
Great job on Siren!
My fillings with hardened epoxy are cured no amine blush... just a hard shiny coating..... my question is: will the Interprotect 2000 (epoxy barrier coat) stick to my shiny cured epoxy fillings. I would hate to do more sanding. Thanks
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Old 23-05-2019, 05:45   #4
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Re: Interprotect 2000 question

If you used a specifically "no amine blush" epoxy, or peel ply, there will be amine blush, and it will affect bonding. Amine blush is the result of drying West Systems epoxy...and many others.

https://www.westsystem.com/instructi...e-preparation/
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Old 23-05-2019, 11:52   #5
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Re: Interprotect 2000 question

Quote:
Originally Posted by SV Siren View Post
The shiny part of the epoxy will have amine blush which is a waxy like film, and that will need to be washed off, otherwise adhesion will be compromised. Just use soap and warm water, and give her bottom a good bath followed by a good rinse, then let her dry and you will be good to go.

I am right there with you, doing the same thing at this very moment.
https://www.facebook.com/1968.Columb...type=3&theater
Thanks, the problem is that I didn't know anything about the amine blust before your alerted me.... Now I know, I watched videos and read your links....
I don't think that West Marine was very clear about it on their 105/205?
205
Anyway, I had grinded almost all the glossy (Almine Blush). I just grinded down the amine blush down the epoxy according to what I read.
What a waste of time on my part.
I have to recover. How? with minimun sanding?
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Old 24-05-2019, 04:19   #6
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Re: Interprotect 2000 question

Since the amine blush is now sanded, and most likely into and onto the adjacent areas, just scrub down with water(or soapy warm water-my preference)and a scouring pad, and rinse off..not bad in the scheme of things.

You will not spend that much time on it...me...I over-analyze things and spend more time on research than on the actual project sometimes...working on a boat is a learning curve, we all have to climb that curve. I'd rather do something once than learn from a mistake, and have to do it again. Either way, we're still learning.
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Old 24-05-2019, 09:36   #7
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Re: Interprotect 2000 question

Quote:
Originally Posted by SV Siren View Post
Since the amine blush is now sanded, and most likely into and onto the adjacent areas, just scrub down with water(or soapy warm water-my preference)and a scouring pad, and rinse off..not bad in the scheme of things.

You will not spend that much time on it...me...I over-analyze things and spend more time on research than on the actual project sometimes...working on a boat is a learning curve, we all have to climb that curve. I'd rather do something once than learn from a mistake, and have to do it again. Either way, we're still learning.
thanks.... will scrub, wash, rinse.... make a lot of sense. I hope that Iwill get rid of 99.9% of amine blush before starting my Interprotect 2000 applications.
I'm pretty sure that I will contact you again. Interprotect is very intimidating with all these recoating time windows and these dew points restrictions!
Like you I read a lot but obviously not enough since I missed the amine blush issue!
Thanks again
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Old 24-05-2019, 09:58   #8
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Re: Interprotect 2000 question

When I applied five coats of Interlux Interprotect 2000E epoxy barrier coat to by 2000 380 Searay Sundancer, I used the Blair Equipment Tornado II portable paint shaker.

It is an invaluable tool when painting the bottom of the boat.

The 2000E specifies mixing individual components first, then mixing together. The paint shaker is great for all that mixing. I give a full timer twist for the gallon of solid only, then another full twist for mixing the two parts together.

My experience in my high-temperature climate was that my pot life was insufficient for mixing a full gallon at a time, so I did half gallon batches and that worked out great.

Follow the instructions!

Good luck. Have fun.
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Old 25-05-2019, 04:37   #9
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Re: Interprotect 2000 question

Ferra,

Interlux has a great set of instructions on their website..follow those instructions, and make sure you do the prep, you will be happier for it
in the end. Good Luck!
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