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Other: Vacuum bagging a la Red Green?
By:Nathan
Date: 11/7/2001, 5:47 pm

OK, I'm about to start construction on a CLC North Bay XL, and I need some advice. My first S&G effort (Ches. 18) weighs as much as a battleship - too much epoxy, needless extra glass. On the new boat, I'm on a huge kick to reduce weight without compromising strength, so I'm looking into vacuum bagging. Here's my plan - fire away!

1. Stitch hull as normal using microballooned fillers and a sheer clamp made from ceiling moulding (the coved kind... can you imagine this?), and pulling the copper wires. So, I guess that's not normal, but nothing too whacky yet.

2. Seal the inside surface with thin coat epoxy, sand lightly.

3. Carefully tape heavy-duty painter's dropcloth (5 mil? 10?) to the inside of one side of the hull. (Duct tape - the handyman's secret weapon!) Wrap cloth over the boat, trim to shape so it wraps onto the opposite, inside surface of the hull. (This is the vacuum bag.) Pull plastic back over, exposing the wood. Also prepare individual plastic sheets cut in exact shape of the panels. (These are the barriers between the glue and the breather layer.)

5. Glass outside with 4 oz. satin-glass w/ extra layer on bottom.

6. Carefully lay down the barrier layer. Stick the breather layer (maybe cheapo felt from a fabric store?) down with double stick tape, maybe a few spots of 3M 77?

7. Wrap the plastic back over the boat, tape it down.

8. (If you're not laughing yet, here it comes...) Stick a shop-vac hose into the bag, tape it up as best as possible, and let 'er rip.

9. Roll out as much epoxy as possible - I think it should only take a couple of hours before the vacuum has done its work.

The whole point of this is to avoid the second and third coats of epoxy, as they do nothing for strength, and only add weight. Please offer your critiques, suggestions, jibes even... I'd really appreciate it.

And if you think this is nuts, just wait to see what I do with the deck!

Nathan

Messages In This Thread

Other: Vacuum bagging a la Red Green?
Nathan -- 11/7/2001, 5:47 pm
Vacuum pumps a la Red Green!
Dave S. -- 11/8/2001, 11:34 pm
Re: Vacuum pumps a la Red Green!
Don Beale -- 11/9/2001, 11:23 am
Vacuum bagging a la Green Giant?
Paul G. Jacobson -- 11/7/2001, 10:19 pm
Wow - thanks. Responses...
Nathan -- 11/8/2001, 2:03 am
Re: Satinweave Glass, etc...
Mike Hanks -- 11/8/2001, 8:22 pm
Re: Wow - thanks. Responses...
Paul G. Jacobson -- 11/8/2001, 6:14 pm
Okoume in SF Bay
Val Wann -- 11/8/2001, 10:58 am
Re: Okoume in SF Bay
Lee,G -- 11/8/2001, 12:15 pm
Re: Okoume in SF Bay
Matthew Blumenthal -- 11/8/2001, 8:06 pm
Re: Okoume in SF Bay
Val Wann -- 11/9/2001, 1:06 am
Re: Okoume in SF Bay
Rehd -- 11/9/2001, 1:53 am
Re: Okoume in SF Bay
Lee,G -- 11/9/2001, 2:21 pm
Re: Wow - thanks. Responses...
Dan St. Gean -- 11/8/2001, 9:29 am
Re: Responses...VacBag
Jim Kozel -- 11/8/2001, 10:47 am
Re: Other: Vacuum bagging a la Red Green?
Val Wann -- 11/7/2001, 7:06 pm
Re: Other: Vacuum bagging a la Red Green?
Bill Sivori -- 11/7/2001, 9:44 pm
Huh? Why?
Paul G. Jacobson -- 11/7/2001, 11:01 pm
Re: Huh? Why?
Bill Sivori -- 11/9/2001, 7:53 am
Re: Huh? Why?
Dean Trexel -- 11/7/2001, 11:21 pm
Re: Other: Vacuum bagging a la Red Green?
Dean Trexel -- 11/7/2001, 10:29 pm
Re: Other: Vacuum bagging a la Red Green?
Bill Sivori -- 11/9/2001, 8:09 am
Thanks! Responses...
Nathan -- 11/7/2001, 7:18 pm
Re: Other: Vacuum bagging a la Red Green?
Shawn Baker -- 11/7/2001, 6:45 pm
Vacuum bagging really necessary?
Dean Trexel -- 11/7/2001, 6:25 pm
pool noodles
Sam McFadden -- 11/7/2001, 8:42 pm
Re: Other: Vacuum bagging a la Red Green?
Pete Rudie -- 11/7/2001, 5:56 pm