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The Grudgeon Brothers Method Options · View
Fastjeff
Posted: Tuesday, September 23, 2008 1:34:16 PM

Rank: Top Rank Aluminum Star
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Joined: 12/5/2007
Posts: 981
Points: 1,793
Location: New Tripoli, PA
Thanks to whom ever suggested this. To wit:

On SMALL areas, if you don't want to go through the etching ritual, use the Grudgeon Brothers (West Systems) method: On a freshly sanded aluminum surface, mix up a batch of 5 minute CLEAR epoxy and sand it into the surface. It's just like wet sanding only you're using epoxy instead of water. Use 40 grit paper and scratch away.

A few good strokes and the clear epoxy will turn grey--that's the aluminum oxide being removed from the "freshly sanded surface" (which tells you how fast that stuff corrodes!) Soon as the epoxy is hard enough you can slap the barrier coat right on. Nothing to it!

Jeff

I'm STILL waiting for my bailout!
Sponsor
Posted: Tuesday, September 23, 2008 1:34:16 PM
Please Register : New members may not post until approved. An email is sent after approval. We do this to reduce those who use these forums for spamming. This forum is for Marinette Owners and other aluminum boat boaters who wish to share boating information. Aluminum Roamer owners are also welcome. (Do not post content you do not have the right to post and mass (robots) posters are unwelcome. We also have a marine electronics page and lots of Chrysler Engine info. State by what permission, you copy content and accredit properly.) The site is now fixed with some more Chrysler information. I will try to post more information soon. We have space for pictures on the new location. Use shinkpic to autochange size http://www.onthegosoft.com/sp_download.htm

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marinettejoe
Posted: Tuesday, September 23, 2008 5:40:08 PM

Rank: Administration
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Joined: 12/3/2007
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Location: Stafford
Holy cow.... That's the best tip ever.....

Unzinced ships sink at slips.
Fastjeff
Posted: Wednesday, September 24, 2008 3:52:27 AM

Rank: Top Rank Aluminum Star
Groups: Administration , Member

Joined: 12/5/2007
Posts: 981
Points: 1,793
Location: New Tripoli, PA
Agreed, Joe, but only for small areas.

Jeff

I'm STILL waiting for my bailout!
ComputerJoe
Posted: Tuesday, September 30, 2008 11:08:06 AM

Rank: Upper Crust Bronze Star
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Joined: 12/7/2007
Posts: 125
Points: 161
Location: Alpena, Michigan
It is Gougeon Brothers www.gougeon.com I bought their book on laminated boat construction using their West System epoxy.

They are the last remaing remanents of a long history of boat\ship building in Bay City Michigan.
I think the last drydocks and ship builder (DeFoe Shipyards) shut down about 1960. DeFoe poineered buildiing ships hulls upside down. I think the last ship built there ( a Coast Guard vessel) was sunk as a dive site off of Boyton Beach Fl. not very long ago.

Some of the builders from Bay City include the Davidson Shipyards, American Shipbuilding Company, and Wheeler & Company. There are very many "Davidson" shipwrecks from the 1800's scattered all over the Great Lakes.


"LIFE is what happens to you, while your making other plans."
dougrose
Posted: Wednesday, October 01, 2008 4:58:57 AM

Rank: Top Rank Aluminum Star
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Joined: 12/7/2007
Posts: 394
Points: 726
Location: Central Florida and the DC area
I had an old pickup with 3-speed. One day it got noisy and I looked under to find that the bottom had been knocked off the case, and you could just look up and see the countershaft and gears.

My roommate Jim was building a trimaran in the back yard using WEST epoxy, the Gougeon system. For a temporary repair, I wet out some of his glass on a piece of wax paper, wet-sanded with epoxy around the big hole in the tranny, and lifted the glass up to cover the hole and taped it all up with duct tape.

Next morning I put in some oil and it didn't leak. It was still fine when I sold the truck a dozen years later.

"I remember when welfare was for poor people..."
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