The Zip is on the NILE, Egypt

Outboard designs up to 14'

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Ayman
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Joined: Thu May 10, 2018 8:54 pm
Location: Cairo, Egypt

Re: The Zip is on the NILE, Egypt

Postby Ayman » Sat Jun 30, 2018 4:16 pm

Matt, it took me two months to find where in Egypt is the West System agent, or distributor if I may say. They carry either one Kg packages or 30 Kg packages. I had no choice. had to buy 3 packages of 1Kg. trying to make me happy because it was too expensive, they gave me a small amount of fibers for free. That was so useful in thickening the epoxy. :)
The Prof

Ayman
Posts: 32
Joined: Thu May 10, 2018 8:54 pm
Location: Cairo, Egypt

Re: The Zip is on the NILE, Egypt

Postby Ayman » Sat Jun 30, 2018 4:20 pm

I like this detail too .. :)
Attachments
Transom Screws.JPG
I like this small detail too :)
The Prof

Ayman
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Location: Cairo, Egypt

Re: The Zip is on the NILE, Egypt

Postby Ayman » Sun Jul 01, 2018 1:19 pm

Hello
Transom is fared and looks great.

Earlier I decided to cut the Stem from one peice of Mahogany, 36mm, Then I took your advice to laminate plywood because the massive granes may Not be strong enough in some parts. So I sandwiched the massive mahogany with 10mm plywood. I will assess the results tomorrow:). I have an extra massive mahogany stem :) :) to donate.

I must say that I’m back to the swing of things :)
Attachments
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AA9F7013-F25F-438F-8284-990A75DA8617.jpeg
E86364E6-D5A9-4A4D-B8BD-18DAC40ED892.jpeg
The Prof

Ayman
Posts: 32
Joined: Thu May 10, 2018 8:54 pm
Location: Cairo, Egypt

Re: The Zip is on the NILE, Egypt

Postby Ayman » Sun Jul 01, 2018 10:49 pm

Hello builders l, greetings from Egypt
Hope you are doing great.

I have a couple of questions; after reviewing some videos for building the zip I noticed that some used fiver glass fabric on the hull some just painted with epoxy. What do you recommend?
The other question is in case of painting with epoxy, how many coats are are required? Should I sand between? What is the time span required between? I really don’t know much about that

Thank you for your time
The Prof

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BarnacleMike
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Re: The Zip is on the NILE, Egypt

Postby BarnacleMike » Mon Jul 02, 2018 5:15 am

Hi Ayman,

Nice looking work on the transom and stem! William Jackson, a Naval Architect who was a contemporary of Glen L. Witt back in the 1950's, used to design stems this way with solid wood sandwiched between two layers of plywood. I can see some advantages, particularly if you have to screw anything directly into the front of the stem (like a wooden bow strip, etc.)

About the fiberglass and epoxy: My personal recommendation would be to fiberglass the hull. It will provide some degree of abrasion resistance, and the additional layers of epoxy involved in the process will provide more waterproofing for the hull.

The way I fiberglassed the hull on my Utility was to first encapsulate the hull with one layer of epoxy, and allow that layer to cure (harden). I then sanded and cleaned that layer in order to roughen the surface to provide better adhesion for the next layer of epoxy. I placed fiberglass cloth onto this sanded surface, and wet the fiberglass cloth with a second layer of epoxy. I used a foam roller and a squeegee to work the epoxy thoroughly into and through the fiberglass cloth. After this second layer cured, I sanded it lightly and added more layers of epoxy as needed to fill the weave of the fiberglass cloth.

Glen-L has produced a very good book and DVD on "How to Fiberglass Boats." I found it to be very useful. https://www.boatdesigns.com/How-to-Fiberglass-a-Boat-Book-DVD-Combo/productinfo/16%2D037/
-Michael

Built Utility "Perseverance" — completed Aug 2016
Currently building a Zip
My Boatbuilding Blog: http://barnaclemikeboats.blogspot.com/
My Website of Boat Photos: https://michaelsmaddox.wordpress.com

Ayman
Posts: 32
Joined: Thu May 10, 2018 8:54 pm
Location: Cairo, Egypt

Re: The Zip is on the NILE, Egypt

Postby Ayman » Thu Jul 05, 2018 12:59 am

Thank you Mike, very useful information and encouraging as well

I think I will go for the fiberglass cloth option. The only challenge is to find it in Egypt!! otherwise I have to buy it during my next visit to the states. which will be soon I think :). obciously I won't find cloth that is wide enough to cover the hull in one go. Do you know where are the best lines to make the connections? do I make an overlap?

Ayman
The Prof

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Bill Edmundson
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Re: The Zip is on the NILE, Egypt

Postby Bill Edmundson » Thu Jul 05, 2018 5:17 am

Ayman

I usually lap about 1 1/2" each side of the keel and chines.

Bill
Mini -Tug, KH Tahoe 19 & Bartender 24 - There can be no miracle recoveries without first screwing up.
Tahoe 19 Build

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BarnacleMike
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Re: The Zip is on the NILE, Egypt

Postby BarnacleMike » Thu Jul 05, 2018 7:07 am

Ayman,

Here are links to a couple of posts on my blog that show photos of overlapping the fiberglass cloth and the process of "feathering" the overlapped edge. This basically means sanding the edge of the first layer of fiberglass cloth so that it tapers down to zero. This helps to create a smooth overlapped area.

http://barnaclemikeboats.blogspot.com/2014/12/fiberglassing-continues.html
http://barnaclemikeboats.blogspot.com/2015/01/more-fiberglassing-photos.html

In all, I wrote seven blog posts that covered the fiberglassing process of my Utility. Here is a link to the index page. Just scroll down to the "Fiberglassing" part:

http://barnaclemikeboats.blogspot.com/p/index.html

The Glen-L book and DVD I mentioned do an extremely good job of showing the fiberglassing process. I'm pretty sure they ship internationally, and they sell fiberglass cloth, too.
-Michael

Built Utility "Perseverance" — completed Aug 2016
Currently building a Zip
My Boatbuilding Blog: http://barnaclemikeboats.blogspot.com/
My Website of Boat Photos: https://michaelsmaddox.wordpress.com

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hoodman
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Location: Lafayette, IN

Re: The Zip is on the NILE, Egypt

Postby hoodman » Thu Jul 05, 2018 10:02 am

Fiberglassing is not hard. It's just stressful the first few times since it will be a new skill for you. You're using a quality epoxy so you should have no problems.

Ayman
Posts: 32
Joined: Thu May 10, 2018 8:54 pm
Location: Cairo, Egypt

Re: The Zip is on the NILE, Egypt

Postby Ayman » Thu Jul 05, 2018 10:31 am

Thank you Matt, Mike, and Bill. You are full of information.

From your previous experience, how many Kilo grams of epoxy does it take to fix a fiberglass cloth on a zip?

Ayman
The Prof

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hoodman
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Re: The Zip is on the NILE, Egypt

Postby hoodman » Thu Jul 05, 2018 2:48 pm

I have used about 7 gallons total for everything on my boat. I can't remember how much I used just for the bottom fiberglass.

JimmY
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Re: The Zip is on the NILE, Egypt

Postby JimmY » Fri Jul 06, 2018 6:42 am

I used about 3 gallons on my Squirt to fiberglass the bottom, and encapsulate inside and outside. Sounds like 5 gallons would be a safe bet for a Zip.
-Jim
Nothing says poor craftsmanship like wrinkles in your duct tape!

Ayman
Posts: 32
Joined: Thu May 10, 2018 8:54 pm
Location: Cairo, Egypt

Re: The Zip is on the NILE, Egypt

Postby Ayman » Sat Jul 14, 2018 11:20 pm

Hello builders, hope you are all fine

I'm now putting the cheer and the chine. is there a specific point where the cheers connects to the Stem?
The Prof

JimmY
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Re: The Zip is on the NILE, Egypt

Postby JimmY » Sun Jul 15, 2018 5:00 am

There is not an exact spot for the Chine to meet the stem. It is whatever looks fair.

I recommend installing the sheers first. They are typically easier, less twist, and give a good reference for the twist of the chines.

Here is how I did it. http://www.glen-l.com/phpBB2/viewtopic.php?f=17&t=30104&start=60#p183735
-Jim
Nothing says poor craftsmanship like wrinkles in your duct tape!

Ayman
Posts: 32
Joined: Thu May 10, 2018 8:54 pm
Location: Cairo, Egypt

Re: The Zip is on the NILE, Egypt

Postby Ayman » Thu Jul 19, 2018 7:44 am

Thank you Jimmy, your advice was really help full. I fixed the chines and getting ready for the sheers :)
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IMG_2553.JPG
The Prof


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