Search found 1371 matches

by Patricks Dad
Fri Aug 03, 2018 8:06 am
Forum: Builders' Forum
Topic: Sanding Epoxy inside hull
Replies: 10
Views: 1452

Re: Sanding Epoxy inside hull

I found S-Glass to wet out just about as easily as E-Glass. I'm more accustomed to 4 oz s-glass however. I would say that it wets out easier than 6 oz E-glass (but there's 2 variables for you). It probably also depends on the viscosity of the epoxy you are using (I was glassing with West System epox...
by Patricks Dad
Wed Aug 01, 2018 4:12 pm
Forum: Builders' Forum
Topic: Sanding Epoxy inside hull
Replies: 10
Views: 1452

Re: Sanding Epoxy inside hull

I'm a bit confused. Are you asking how much to sand the first layer of epoxy (with an intention of using two layers of epoxy (rather than 2 layers of glass?)? I'm assuming you mean two coats of epoxy (2 layers of glass would add weight you don't want)... You just need to scuff the surface to allow f...
by Patricks Dad
Wed Aug 01, 2018 7:44 am
Forum: Project Directories
Topic: 17' 0" Nomad
Replies: 75
Views: 70455

Re: 17' 0" Nomad

I would address it now. How much flex do you have in the hull (i.e., how far do you need to push it to get it to the right place?)? If it is small, try putting some weight in it at that spot and let it set for a few days to see if it corrects. If that works, glass it as is. I would try to avoid reso...
by Patricks Dad
Mon Jul 30, 2018 2:20 pm
Forum: Project Directories
Topic: 17' 0" Freedom
Replies: 114
Views: 31329

Re: 17' 0" Freedom

Yeah, I was thinking of pouring sand into it but was worried about it sagging given the hull is pretty thin/flexible right now. I only have 2 supports right now (may add more) but will try my forms strapped in first.
by Patricks Dad
Mon Jul 30, 2018 9:02 am
Forum: Project Directories
Topic: 17' 0" Freedom
Replies: 114
Views: 31329

Re: 17' 0" Freedom

The foam is 3/8" thick. It looks thicker in the pictures because I have beveled the edges ~30 degrees. I set up a jig on my table saw to cut fairly consistent bevels. It's pretty stiff stuff. I bought it from Fibre Glast https://www.fibreglast.com/product/Vinyl_Foam_4lb_Density/Foam It comes in a co...
by Patricks Dad
Sun Jul 29, 2018 9:14 pm
Forum: Project Directories
Topic: 17' 0" Freedom
Replies: 114
Views: 31329

Re: 17' 0" Freedom

Here's my foam (used the inside of the strip canoe as a form to bend the foam....
Image
by Patricks Dad
Wed Jul 25, 2018 9:04 pm
Forum: Project Directories
Topic: 17' 0" Freedom
Replies: 114
Views: 31329

Re: 17' 0" Freedom

I started with a layer of 5 oz kevlar
Next was a 6 oz layer of carbon fiber
Finally was a layer of 4 oz S-Glass

Inside I'll add (in the football and ribs up the side) 3/8" structural foam
and cover that with another layer of 5 oz Kevlar.
by Patricks Dad
Tue Jul 24, 2018 8:25 pm
Forum: Project Directories
Topic: 17' 0" Freedom
Replies: 114
Views: 31329

Re: 17' 0" Freedom

Here's a video of me removing the first composite hull off the Freedom 17 original...

https://www.facebook.com/goprairie/vide ... 681264713/
by Patricks Dad
Sun Jul 15, 2018 10:43 pm
Forum: Project Directories
Topic: 17' 0" Freedom
Replies: 114
Views: 31329

Re: 17' 0" Freedom

Still a work in progress but I coated the outside of this hull with a layer of heatshrink plastic to ensure nothing would stick to it. Then I wet out a layer of kevlar, a layer of carbon fiber and a layer of glass. Once cured, I pulled the composite hull off the "mold" and repeated the whole process...
by Patricks Dad
Sat Jul 14, 2018 3:58 pm
Forum: Project Directories
Topic: 17' 0" Freedom
Replies: 114
Views: 31329

Re: 17' 0" Freedom

After about 6 weeks of using the outside of my Freedom 17 hull as a mold to make two composite copies, I'm finally back to working on the original. I'm about ready to glass the inside. https://scontent.feau1-1.fna.fbcdn.net/v/t1.0-9/37076676_10156007941282885_7901826100412547072_n.jpg?_nc_cat=0&oh=0...
by Patricks Dad
Sat Jul 14, 2018 3:50 pm
Forum: Builders' Forum
Topic: FIberglassing the Stems?
Replies: 3
Views: 1153

Re: FIberglassing the Stems?

After your first wet-out coat of epoxy is on and just nearing the end of the tacky state (you are about ready to put on the first fill coat), take a sharp razor blade and trim the glass along the edge of the stem where it begins to curve to the other side of the canoe - trim both side similarly. The...
by Patricks Dad
Thu Jul 05, 2018 6:33 pm
Forum: Builders' Forum
Topic: Help with Oil-canning
Replies: 4
Views: 1280

Re: Help with Oil-canning

Sorry to hear about your problems. I'm kinda surprised. I hate to say it but I think whatever you put on the outside you should mirror on the inside too.
by Patricks Dad
Thu Jul 05, 2018 1:34 pm
Forum: Project Directories
Topic: 17' 0" Freedom
Replies: 114
Views: 31329

Re: 17' 0" Freedom

Looks great! Congratulations!
by Patricks Dad
Mon Jun 18, 2018 7:58 pm
Forum: Builders' Forum
Topic: Ash bottoms for tough river?
Replies: 9
Views: 1580

Re: Ash bottoms for tough river?

Don't do it. Strength of the hull is less driven by the core material (i.e., the wood) than what surrounds it. If you want to make it stronger, put more glass on BOTH sides of the hull. Consider using S-glass. Using heavier wood in the core won't make the hull much less likely to fail when impacted ...
by Patricks Dad
Thu Jun 14, 2018 10:09 pm
Forum: Builders' Forum
Topic: Advice needed - Fiberglass/Epoxy shaping and filling(?)
Replies: 13
Views: 1716

Re: Advice needed - Fiberglass/Epoxy shaping and filling(?)

yup. you have some waviness in your glass. It looks like you stopped sanding fairly soon after you hit the glass. If you get it wet does some of the glass disappear? If so, another coat of epoxy in those areas will help. It's hard to tell from the pictures how high the glass is off the hull. If you ...