Search found 92 matches

by Todd Bradshaw
Wed Nov 17, 2004 12:12 pm
Forum: Builders' Forum
Topic: Positioning keel/skeg during glassing
Replies: 4
Views: 3424

Mineral spirits? I could be wrong, but I can't recall ever reading that mineral spirits was an effective solvent for epoxy or even something you want to get in contact with green epoxy. The idea of putting any petroleum-based solvent (or damned near any other chemical) on your boat between the cloth...
by Todd Bradshaw
Sun Nov 14, 2004 10:44 pm
Forum: Builders' Forum
Topic: Seeking: info on Sairy Gamp
Replies: 5
Views: 3502

Find a copy of "Rushton and his Times in American Canoeing" by Atwood Manley (Adirondack Museum/Syracuse University Press) http://www.imagestation.com/picture/sraid146/p1b9dd5cf11fe6907d922a50ae1fe8a5c/f6434c73.jpg http://www.imagestation.com/picture/sraid146/p649f8a4e89657ab661a437aaaa2f7...
by Todd Bradshaw
Fri Nov 05, 2004 11:46 am
Forum: Builders' Forum
Topic: Varnish
Replies: 2
Views: 1486

Agreed. First of all, the thinner wash probably isn't needed to get a clean surface. Secondly, fisheyes are almost always caused by chemical contamination. The fact that it is the proper THINNER for the varnish when correctly mixed-in doesn't always mean that it makes a good base coat for it. It cou...
by Todd Bradshaw
Fri Nov 05, 2004 4:02 am
Forum: Builders' Forum
Topic: Non-slip interior surface
Replies: 8
Views: 3617

Some claim that they have had good luck creating non-skid varnish by sprinkling sugar all over the final coat of varnish while it's still wet, letting it dry thoroughly and then washing the sugar away. Supposedly, it leaves a pretty nice and decent looking surface with tiny dimples all over it where...
by Todd Bradshaw
Thu Nov 04, 2004 3:46 am
Forum: Builders' Forum
Topic: alternatives to brass stem band ?
Replies: 9
Views: 4368

A single extra layer gives so litle protection from abrasion that it's hardly worth the trouble to install it. If you want to use fiberglass bias strips, you're better off using several layers, graduated to put the full thickness of the stack on the bottom (below waterline) portion of the stem. Even...
by Todd Bradshaw
Sun Oct 31, 2004 5:48 pm
Forum: Builders' Forum
Topic: Non-slip interior surface
Replies: 8
Views: 3617

"research indicates that epoxy deteriorates much less if as many as 5 coats are applied" Who's research??? Thickness or number of of epoxy filler coats applied has very little to do with limiting the epoxy's deterioration. It does deteriorate from the outside-in, but even five or six fille...
by Todd Bradshaw
Sun Oct 24, 2004 12:00 pm
Forum: Builders' Forum
Topic: Pete restoration
Replies: 2
Views: 1702

The obvious advantage to Dacron covering is the weight reduction created by the lighter weight of both the cover fabric and it's filler. You can probably save ten to fifteen pounds compared to cotton canvas. The drawbacks are that the thin new skin will show any irregularities in the hull much more ...
by Todd Bradshaw
Fri Oct 15, 2004 10:37 pm
Forum: Builders' Forum
Topic: Hellp! - split along a joint
Replies: 21
Views: 7912

Depending upon your stem shape and how much of it gets serious abrasion from beaching, you might want to try a small strip of Kevlar felt there as a "grunch patch". Most of my tripping has been done in 18' Hazen Micmacs and there always seemed to be a small area on each stem that got almos...
by Todd Bradshaw
Fri Oct 15, 2004 1:09 am
Forum: Builders' Forum
Topic: Hellp! - split along a joint
Replies: 21
Views: 7912

It might not even be a defective strip, especially if it's redwood. I've built a few redwood strippers and had good luck with them, but between the three woods I've used (sitka spruce, WRC and redwood) the redwood strips always seemed to be the most brittle and fragile, especially those which were 3...
by Todd Bradshaw
Tue Sep 21, 2004 5:54 pm
Forum: Builders' Forum
Topic: Industrial Formulators Epoxy
Replies: 37
Views: 19146

I have the utmost respect for Ted and what he's contributed to stripper building over many years...but that doesn't mean that I always agree with him. Easy Gord, don't blow a gasket buddy...It's only a canoe, and you're free to do anything you want to the boats you build. The mechanical bonds (as we...
by Todd Bradshaw
Sat Sep 18, 2004 5:39 pm
Forum: Builders' Forum
Topic: Kiln dried or not for steaming?
Replies: 3
Views: 2764

There are much more efficient methods for preventing oilcaning on fiberglass or plastic hulls. Nearly every boat that has used such a system in the past, from the Hyperform "Familia" model of the 1970's, through the pogo-stick We-No-Nah boats to Coleman's rotomolds has had to brace the cen...
by Todd Bradshaw
Sat Sep 18, 2004 2:39 am
Forum: Builders' Forum
Topic: gunwales, light, rot-resistant, strong
Replies: 2
Views: 1869

Sitka is light and stiff, which is good. On the other hand, it is neither very dent-resistant or weather/rot resistant. Spruce (either eastern or sitka) makes a pretty decent inwale and many wood/canvas canoe companies have used it for inwales for many years. For outwales, you're better off with som...
by Todd Bradshaw
Wed Sep 15, 2004 11:32 am
Forum: Builders' Forum
Topic: Industrial Formulators Epoxy
Replies: 37
Views: 19146

Puddles???? Voids???Just how high do you believe the little raised fibers are? If you've got either puddles or voids between the cloth and the wood, whether you raise the grain beforehand or not, you're doing something very wrong. There is no visible remaining sign showing whether you raised the gra...
by Todd Bradshaw
Mon Sep 13, 2004 3:25 pm
Forum: Builders' Forum
Topic: Indian Head Design
Replies: 8
Views: 4695

uuuuhhhhhhhhh.....just in case it matters....Though the typical chief wearing an eagle feathered war bonnet is what most folks think of for Indian heads, there probably isn't a single instance in history of such a person being in a canoe. War bonnets were built and worn by plains Indians who rode ho...
by Todd Bradshaw
Tue Sep 07, 2004 12:48 pm
Forum: Builders' Forum
Topic: Industrial Formulators Epoxy
Replies: 37
Views: 19146

Epoxy does raise the grain. Just dry-sand a chunk of 2x4 and roll on a single light coat of resin, let it cure and see for yourself. My point here is that cosmetically, it doesn't matter and structurally you're quite likely to get a better bond by allowing the resin on a stripper to raise the grain....