Search found 108 matches

by Locutus
Fri Jun 26, 2015 4:04 pm
Forum: Epoxy
Topic: EGADS! Epoxy coming off with masking tape!
Replies: 6
Views: 3143

Re: EGADS! Epoxy coming off with masking tape!

I'm pretty confident that the wood itself is well-sealed, and that the cloth layer is not going to delaminate. It's just the next layer after that which is a problem. IIRC, I waited about 24 hours between the cloth layer and the next. I made sure it was good and dry before applying the epoxy.
by Locutus
Fri Jun 26, 2015 12:35 pm
Forum: Epoxy
Topic: EGADS! Epoxy coming off with masking tape!
Replies: 6
Views: 3143

Re: EGADS! Epoxy coming off with masking tape!

Procedure: (Mix of epoxy in all cases was done with graduated mixing cups and stir stick, stirring for over one minute, scraping sides and bottom of cup several times. Mixture was then poured into roller pan. Temperatures were variable outdoor Spring temps, usually not going below 45 F at night nor ...
by Locutus
Thu Jun 25, 2015 4:06 pm
Forum: Epoxy
Topic: EGADS! Epoxy coming off with masking tape!
Replies: 6
Views: 3143

EGADS! Epoxy coming off with masking tape!

I was removing masking tape after painting and had the horrifying experience of pulling an epoxy layer off the cloth along with the masking tape. http://i59.photobucket.com/albums/g292/Locutus59/2015%20Skipjack%20Build/IMG_0230_zps9mxesura.jpg I don't imagine there is anything I can do about it at t...
by Locutus
Mon Jun 22, 2015 1:49 pm
Forum: Power Boats
Topic: Geronimo - fiberglassing hull done
Replies: 11
Views: 1884

Re: Geronimo - fiberglassing hull done

Tip when using 5200:
After applying and inserting fasteners, tighten just snug. Wait at least a week for the 5200 to cure. Then tighten to correct torque. This will improve the seal.
by Locutus
Mon Jun 22, 2015 1:37 pm
Forum: New Members, Please Introduce Yourself
Topic: Hello From South Carolina
Replies: 34
Views: 7537

Re: Hello From South Carolina

Kamisue, I had a similar impression of the plans for my boat (from same source as yours. Saw your Triad build over on that site's forum too.) I was already committed with a materials purchase before discovering Glen-L. I'm making the best of it though and have made modifications that I think improve...
by Locutus
Fri Jun 19, 2015 10:21 am
Forum: Wood and Plywood
Topic: plywood glue
Replies: 3
Views: 1900

Re: plywood glue

Weldwood is rated water resistant, not waterproof. But then, so is epoxy when it comes right down to it. If you go over to the Stevenson Projects site, you'll find that they specify Weldwood as their glue of choice, because it's relatively cheap and easy to work with. For what it's worth, I am build...
by Locutus
Fri Jun 19, 2015 9:54 am
Forum: Wood and Plywood
Topic: Plywood - Type & what to watch out for.
Replies: 10
Views: 4864

Re: Plywood - Type & what to watch out for.

Sorry for the late response...I've been away from the forum for a while. If you haven't already bought your plywood, here are a few tips: If you're considering anything besides marine grade, make sure the glue is rated WBP (Water and boil proof). This is typically resorcinol, used in both marine and...
by Locutus
Fri Jun 19, 2015 9:19 am
Forum: Painting
Topic: Utility Build Finsh Question
Replies: 40
Views: 10316

Re: Utility Build Finsh Question

I'm building a Stevenson Super Skipjack and had similar issues with the topsides paint. Not ridges, but texture. I was using Interlux Pre-Kote primer and Interlux Brightsides paint. After a month of repeatedly sanding back unsatisfactory finishes and going through three times the paint I would other...
by Locutus
Tue Mar 17, 2015 9:31 am
Forum: Design Modifications
Topic: Flotation for a large boat?
Replies: 3
Views: 2430

Re: Flotation for a large boat?

Oops. That's 34 cubic feet of foam. Sorry. A 4'x8'x2" sheet of foam is good for about 320#. Bill Yes, 2000/60=33.333....cubic feet. If you take the cube root of this you get 3.218. That's the size of the cube. 3.218 FT x 3.218 FT x 3.218 FT = 33.333 cubic feet. This will provide 2000 pounds of flot...
by Locutus
Tue Mar 17, 2015 8:11 am
Forum: Design Modifications
Topic: Flotation for a large boat?
Replies: 3
Views: 2430

Flotation for a large boat?

It doesn't take much foam to provide positive flotation for a small unballasted wooden sailboat. And it's a USCG requirement for boats up to 22 FT, IIRC. With larger, ballasted sailboats this can be a challenge it seems. So much so that positive flotation is usually not used, and is not required by ...
by Locutus
Sat Mar 14, 2015 10:11 pm
Forum: Wood and Plywood
Topic: Ripping stock for bird mouth mast
Replies: 9
Views: 3485

Re: Ripping stock for bird mouth mast

Thanks. That makes it clear.
by Locutus
Sat Mar 14, 2015 9:53 am
Forum: Wood and Plywood
Topic: Ripping stock for bird mouth mast
Replies: 9
Views: 3485

Re: Ripping stock for bird mouth mast

Well, now I'm confused. I thought you were both saying I should cut the staves such that the grain would end up like my last diagram. If I take a quarter sawn 2x12 board (actual 1 1/2 x 11 1/2) and rip a number of staves measuring 3/4 x 1 1/2, would they not look like the ones in my last diagram? Wo...
by Locutus
Fri Mar 13, 2015 8:13 pm
Forum: Wood and Plywood
Topic: Ripping stock for bird mouth mast
Replies: 9
Views: 3485

Re: Ripping stock for bird mouth mast

gdcarpenter, thanks for the diagram. Very informative. Rod, So here's what I think you're saying is the best way to cut the staves and assemble them. (Image copied from duckworksmagazine.com and then I added the woodgrain by hand.) Curve of grain cross section maybe a bit exaggerated but shows that ...
by Locutus
Thu Mar 12, 2015 6:36 pm
Forum: Wood and Plywood
Topic: Ripping stock for bird mouth mast
Replies: 9
Views: 3485

Re: Ripping stock for bird mouth mast

The top one you do not want 8) ideal cut.jpg the circled one is what you want :wink: Really? I would have thought the best one would be the first sketch. I've revised it below, showing the resulting stave cross section next to each one. Do you still have the same opinion? http://i59.photobucket.com...
by Locutus
Thu Mar 12, 2015 4:28 pm
Forum: Wood and Plywood
Topic: Ripping stock for bird mouth mast
Replies: 9
Views: 3485

Ripping stock for bird mouth mast

I'm planning to build a bird mouth mast for my Skipjack. I'm wondering which type of board I should buy for ripping the staves. (I think that's what they're called.) I'd like to use Sitka Spruce, but it probably isn't available so will likely end up using Douglas-fir. Anyway, I drew up a quickie dia...

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