Interprotect Barrier Coat Questions - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 04-29-2011
cghubbell's Avatar
1977 CS27 ~ Ravat
 
Join Date: May 2009
Location: Ontario, NY (PYC)
Posts: 157
Thanks: 4
Thanked 0 Times in 0 Posts
Rep Power: 6
cghubbell is on a distinguished road
Question Interprotect Barrier Coat Questions

Greetings,

I'm seeing light at the end of the tunnel on my year-and-a-half long refit project, (CS27 ~ Ravat) and am finally barrier coating the hull. I'm going to use Interprotect 2000e, and complete that with VC-17 anti-fowling since that's what everyone else uses around here.

It's looking like temps will be in the low 60s here with pretty average humidity levels. My boat is a shoal draft CS27.

I know about using alternating colors, the correct foam rollers, thumb print curing check, and the boat's bottom is well prepped according to recommendations. I am assuming that I will need one roller and one brush per coat. That being said, here are my questions:

1. Are there any guidelines regarding how much I should mix at a time? Should I mix up the entire batch at once? Should I go half and half? Having never done this, I'm not sure how fast it will kick over or how fast it will apply.

2. Is it better to apply all the coats and then hit it with a quick sander to smooth things out, or to do some form of a roll and tip to keep it smooth as I go? Or am I just wasting time picking nits? I'm not planning to race (well, not SERIOUSLY anyway!). Just cruising. I do want the boat to look good though - after all this work I want it to look like it was done well.

3. At the tape line is it normal to just leave that area standing proud, or do people carefully hand sand it down? I'm guessing it's just left as-is, but hard to tell fromt he boats around me since they have a few layers of bottom paint over them by now obscuring it.

4. Did I miss anything? (Loaded question!)

Thanks in advance,
Chris
__________________
CS27 #1254 ~ Ravat
PYC, Lake Ontario

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #2  
Old 04-29-2011
CharlieCobra's Avatar
On the hard
 
Join Date: May 2006
Location: Bellingham, WA.
Posts: 3,503
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
CharlieCobra has a spectacular aura about CharlieCobra has a spectacular aura about
I wouldn't mix more than it takes to do a coat at a time or you'll find it setting up in your bucket. You want build (minimum 10 mils) which doesn't lend itself to appearance. The fish don't care what the bottom paint looks like and sanding ablative (if that's what you're using) is an oxymoron. If going with Baltoplate or VC-17 then yes, burnish the paint after you are done. Interprotect is an epoxy and does not sand well. That's not what it's designed for.
__________________
Baggett and Sons Marine Restoration
The Landing at Colony Wharf
Bellingham, WA.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #3  
Old 04-29-2011
Junior Member
 
Join Date: Sep 2009
Posts: 17
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
dugsmith98 is on a distinguished road
I just did this with my 39 footer, and bulb keel. I found one gallon of the 2000e covered the boat bow to stern, and then did 5 coats over a few weeks. The time between coats is up to a few weeks, so just reapplying is fine. No sanding needed. The transition from the 2000e to the first coat of antifouling is the one that matters as to a short time. The yard where I did it told me, finish the coat of 2000e, go to lunch and then in about 3 hours (65 degree day), it was dry and I put on the antifouling.
Then you have days again where no sanding is needed before the next coat of bottom pain.
Sounds like you have done your homework, so it should be something to behold once it is done.
__________________
Doug
Desiderata
Oceanus 393
Reply With Quote Share with Facebook
  #4  
Old 04-29-2011
deniseO30's Avatar
Move over Joan Rivers!
 
Join Date: Nov 2006
Location: Bristol pa
Posts: 5,854
Thanks: 51
Thanked 72 Times in 64 Posts
Rep Power: 9
deniseO30 will become famous soon enough deniseO30 will become famous soon enough
I would opt for cooler weather.. the stuff kicks off quick! typical of epoxies if you leave it mixed and in a can it will kick even faster. When we coated strip canoes we always used shallow pans for the stuff. (clear epoxy) When We did the barrier coat on my boat,(2000E) it went well but I expected it to kick faster then the label would lead you to believe. I've had bad luck with foam rollers too.
__________________
Denise, Bristol PA, Oday 30. On Tidal Delaware River, Anchor Yacht Club. New Website!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

my current "project"!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by deniseO30; 04-29-2011 at 10:26 AM.
Reply With Quote Share with Facebook
  #5  
Old 04-29-2011
ASA and PSIA Instructor
 
Join Date: Apr 2000
Posts: 3,422
Thanks: 6
Thanked 14 Times in 14 Posts
Rep Power: 15
sailingfool will become famous soon enough
Chris,
The CS27 is a sweet boat, and its great to someone giving one a second life. I'm sure you will find years of satisfaction and pleasure in payback for all the pain and $$$ you are investing - great job.

As you have been given good advice above, I'll offer a sailing caution based on your blog's picture...always remove any slack from your reefing lines...you wouldn't want a loop to catch a head during a gybe, especially after all this work...
__________________
Certified...in several regards...
Reply With Quote Share with Facebook
  #6  
Old 04-29-2011
Senior Member
 
Join Date: Mar 2004
Location: Austin, TX
Posts: 362
Thanks: 1
Thanked 7 Times in 6 Posts
Rep Power: 11
TejasSailer is on a distinguished road
On VC-17, I've not applied it myself, but have observed the application to my boat several times. A solvent resistant roller was used. It seems quite thin, and only a small amount was mixed at a time. No thinner was used. Six, less than one quart cans were used on our 36' boat for more than one coat, which I think is somewhat more than usual. It dries quicky so there was no wait between coats. Extra coats were applied to leading edges.

The manufactures Web site has instructions.
Reply With Quote Share with Facebook
  #7  
Old 04-29-2011
Maine Sail's Avatar
Senior Member
 
Join Date: Jan 2003
Location: Maine Coast
Posts: 5,264
Thanks: 9
Thanked 111 Times in 81 Posts
Rep Power: 15
Maine Sail is just really nice Maine Sail is just really nice Maine Sail is just really nice Maine Sail is just really nice
If you apply with a foam roller there should be no real need to sand or roll & tip. For the "hot coating" you want thumbprint dry. This means you can leave a thumbprint but none comes off on your thumb.

For our boat this was roughly a 15-20 minute window at about 72 degrees so one guy was rolling the last coat of 2000e while the next guy followed about 20 minutes behind. The "hot coat" layer is the most important one as it chemically bonds the first paint layer to the epoxy so you don't get peeling paint in a few seasons.
__________________
______
-Maine Sail / CS-36T


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.




© Images In Posts Property of Compass Marine Inc.


Reply With Quote Share with Facebook
  #8  
Old 04-29-2011
cghubbell's Avatar
1977 CS27 ~ Ravat
 
Join Date: May 2009
Location: Ontario, NY (PYC)
Posts: 157
Thanks: 4
Thanked 0 Times in 0 Posts
Rep Power: 6
cghubbell is on a distinguished road
Quote:
Originally Posted by deniseO30 View Post
I would opt for cooler weather.. the stuff kicks off quick! typical of epoxies if you leave it mixed and in a can it will kick even faster. When we coated strip canoes we always used shallow pans for the stuff. (clear epoxy) When We did the barrier coat on my boat,(2000E) it went well but I expected it to kick faster then the label would lead you to believe. I've had bad luck with foam rollers too.

I don't have much of an option for looking for cooler weather... Spring has sprung. If I wait, it will most likely only get warmer.

What type of bad luck did you have with foam rollers? It was my understanding that solvent resistant rollers are the right tool for the job. Is there more to it?
__________________
CS27 #1254 ~ Ravat
PYC, Lake Ontario

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #9  
Old 04-29-2011
cghubbell's Avatar
1977 CS27 ~ Ravat
 
Join Date: May 2009
Location: Ontario, NY (PYC)
Posts: 157
Thanks: 4
Thanked 0 Times in 0 Posts
Rep Power: 6
cghubbell is on a distinguished road
Quote:
Originally Posted by sailingfool View Post
Chris,
The CS27 is a sweet boat, and its great to someone giving one a second life. I'm sure you will find years of satisfaction and pleasure in payback for all the pain and $$$ you are investing - great job.

As you have been given good advice above, I'll offer a sailing caution based on your blog's picture...always remove any slack from your reefing lines...you wouldn't want a loop to catch a head during a gybe, especially after all this work...
Not to get too far off topic, or intentionally embarass myself, but that was my second time sailing the boat, and I barely knew what reefing was at that time

To be honest, I am not sure how to reef this boat's main yet. The PO did some very unique customizations... Things which were... How shall I say it? Creative! So the original reefing system is probably not rigged properly. That's going to be one of the summer projects... One of MANY!
__________________
CS27 #1254 ~ Ravat
PYC, Lake Ontario

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #10  
Old 04-29-2011
cghubbell's Avatar
1977 CS27 ~ Ravat
 
Join Date: May 2009
Location: Ontario, NY (PYC)
Posts: 157
Thanks: 4
Thanked 0 Times in 0 Posts
Rep Power: 6
cghubbell is on a distinguished road
Quote:
Originally Posted by Maine Sail View Post
If you apply with a foam roller there should be no real need to sand or roll & tip. For the "hot coating" you want thumbprint dry. This means you can leave a thumbprint but none comes off on your thumb.

For our boat this was roughly a 15-20 minute window at about 72 degrees so one guy was rolling the last coat of 2000e while the next guy followed about 20 minutes behind. The "hot coat" layer is the most important one as it chemically bonds the first paint layer to the epoxy so you don't get peeling paint in a few seasons.
According to the Interprotect Product sheet when overcoating with VC-17m the Interprotect layers are supposed to dry for 24-36 hours, then be sanded with 180-220 grit paper.

So, it looks like the thumb prints are more for timing the Interprotect layers than tying in with my anti-fowling. This process only applies to the VC-17m or VC-17m Extra though. All other anti-fowling paints must be applied in the overcoating window.

Lotsa details to manage with these boat projects!
__________________
CS27 #1254 ~ Ravat
PYC, Lake Ontario

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 2 (0 members and 2 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Bottom paint over Gel Coat without Barrier Coat? WagTheDog Gear & Maintenance 17 07-15-2012 07:33 AM
Help choosing my barrier coat system: Interprotect vs. West System vs. Other? Beersmith Gear & Maintenance 30 02-09-2011 01:10 PM
Tips for barrier coating with Interprotect? mrybas Gear & Maintenance 4 08-20-2010 10:45 AM
Epoxy Barrier Coat over Gel Coat? lizardheadone Gear & Maintenance 2 01-17-2010 08:52 PM
What is a barrier coat? sailboy21 Gear & Maintenance 9 02-12-2008 03:55 PM


All times are GMT -4. The time now is 08:05 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012