Edd, whatever product you choose, read the instructions carefully, but
more importantly follow them. Applying Interprotect 2000E isn't rocket
science but it is labor intensive.....and to get 10 mils thickness on a
37'er, it will get a bit expensive.
When we bought our boat in the Spring of 2006, we were somewhat forced
to remove the antifouling paint as it was VC 17, a freshwater paint.
Although this is not really true....I have applied Micron CSC over VC 17
(Interlux and all the experts say it can't be done, the CSC won't bond
to the VC 17) . We brought in a Kirby 25 from Toronto with VC 17 and I
applied Micron CSC over it with no issues at all.
The real reason I wanted the VC 17 removed was to see the bottom
gelcoat......had the bottom 'dry iced blasted'. Interesting result of
the blasting was that it exposed a few bad spots in the bottom
gelcoat....about 6 to 8 spots on the starboard side and 4 on the port
side....the biggest one was maybe a 1/4" diameter. There was no evidence
of water/moisture in the hull according the the moisture meter. Not
sure what caused this.....some of the contractors around the yard were
watching and they said it might have been air bubbles in the gelcoat and
the blasting broke them open. Ground them out a bit and filled with resin.
We had the perfect day to apply the Interprotect....my brother and I
started around 8:00 a.m......first we washed the bottom with a cleaner,
mixed our first batch of 2000E around 8:30 a.m. and began rolling it on
with 6" foam rollers at around 9:00 a.m. You have to wait about 20
minutes after you mix this two-part product before applying....again,
follow the instructions. The first time, you won't know exactly how
much to mix to cover everything. We mixed 5 batches, all the same
volumes, and ended up with a little left over each time. Rather than
throwing it way, we would go back to where we started and roll it on.
We applied 5 coats in one day....each coat 2 hours apart....with a
little left over each application, I figure we applied really 7 coats in
total.
If my memory is correct, you have about two weeks after applying the
2000E to apply your antifouling paint. After that, you have to sand
the 2000E. We applied 2 coats of Micron CSC over the 2000E.
If my boat had a 'cored hull' and was in the water all year long, I
would definitely have it barrier coated for the peace of mind.
Bob Abbott
AZURA
C&C 32 - 84
Halifax, N.S.
On 2013/01/12 7:36 AM, dwight veinot wrote:
I am not aware of any C&C boats that ever had blistering (osmosis)
problems, at least around here...maybe there are more such problems in
southern waters...so I can't justify the effort and expense of the
Interprotect system...maybe if I ever did a total bottom paid removal
I would consider going overboard and apply Interprotect then as a tie
coat for new antifouling paint
Dwight Veinot
C&C 35 MKII, Alianna
Head of St. Margaret's Bay, NS
------------------------------------------------------------------------
*From:*CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of
*kirk sneddon
*Sent:* January 11, 2013 10:46 PM
*To:* cnc-list@cnc-list.com
*Subject:* Re: Stus-List Barrier Coating after Soda Blasting
Did the bottom of my boat six years ago when I purchased it.
We did 2 coats of the high build primer (I think the designation is
Interprotect 3000) followed by 3 coats of the Interprotect 2000. It is
a good product line.
The key is build thickness. If you don't get enough thickness the
epoxy will not be effective as a moisture barrier. With proper build
thickness, the stuff works as advertised. I have seen other boats
where people tried only 2 layers of 2000 and the results were not so
good. Don't try and save on materials.
I had gel coat crazing (too thick from factory) prior to doing the
bottom. After six years the bottom looks great. No blisters, no
evidence of propagation of the gel coat crazing under the barrier
coat. I'm sure the fish are impressed when they swim under it.
If you get a good prep on the underlying surface and follow the
manufacturer's instructions, you should be very happy with the results.
Kirk Sneddon
Flying Cloud
C&C 29 Mk II
*From:*CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of
*Edd Schillay
*Sent:* Friday, January 11, 2013 10:48 AM
*To:* cnc-list@cnc-list.com
*Subject:* Stus-List Barrier Coating after Soda Blasting
Listers,
I'm getting the hull of the Enterprise soda blasted this year and the
plan is to do the barrier coating myself afterwards. So, a few questions:
1. I've heard Interprotect is a good product. Anyone have any
recommendations? How many gallons for a 37+'s hull?
2. How many coats should I put on? I like the idea of alternating gray
and white.
3. What is a good way to get it all on? What is the best painting
materials? Please note: I'm not looking for the ultimate super smooth
bottom. I'd rather not spend days wetsanding this hull.
4. Any other tips or suggestions?
The Enterprise launches in 17 weeks.
All the best,
Edd
Edd M. Schillay
Starship Enterprise
C&C 37+ | Sail No: NCC-1701-B
City Island, NY
Starship Enterprise's Captain's Log Website
<http://ncc1701a.blogspot.com/>
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