Boat Design Forums  |  Boat Design Directory  |  Boat Design Gallery  |  Boat Design Book Store  |  Thanks to Our Site Sponsors

Go Back   Boat Design Forums > Construction > Materials
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 07-11-2008, 02:03 PM
Bronn Bronn is offline
Junior Member
 
Join Date: Jul 2008
Rep: 10 Posts: 9
Location: New Jersey
Process of bonding Epoxy to steel reinforcement.

Hey all,

I am in the middle of restoring an old '72 Wellcraft Bowrider and seeking some advice.

The transom which hosts a 80 hp outboard is rotted in the middle. Where the bottom clamp of the outboard rests on the transom is right above the bilge pan and it was sitting for years with salt water rotting away the resin and wood behind it. So the lower clamp is pushing in the transom right above the bilge and the top of the transom is pulling out away from the upper clamp, approx. 1 1/2".

My solution was going to be installing 3 steel plates 1/4" thick. One plate across the top of the transom full width of the transom with angle stock to keep it rigid. Then another plate inside the boat above the bilge roughly 12" x 18". Finally another plate across the transom in the shape of a T which will span most of the transom's width. The upper part will thru bolt to the upper plate inside and the bottom part of the T will bolt to the plate inside the bilge area. There will be more bolts to keep the whole thing tight.

Now its not a lot of weight, about 50lbs, which i will compensate by moving the two fuel tanks forward.

Barring all that....I want to encapsulate the steel in epoxy, wrap all steel in a layer of fiber glass, epoxy and paint for a finish.

Can this be done? I really didn't want to rip off the entire transom but i do want to do it right.

Any advice appreciated.
Reply With Quote
  #2  
Old 07-11-2008, 09:40 PM
ondarvr ondarvr is offline
Senior Member
 
Join Date: Dec 2005
Rep: 226 Posts: 636
Location: Monroe WA
What you need to do is completely rebuild the transom, the floor and stringers are very likely rotten also, so you'll need to gut it and it build back similar to what it is now. Just bolting steel to the outside will be an inadequate bandaid at best.

If you don't want to do this amount of repair it would be best to find a new boat.
Reply With Quote
Reply



Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Bonding Aluminum with Epoxy Chris Krumm Materials 49 02-10-2012 05:16 AM
Bonding aluminium to epoxy gary1 Fiberglass and Composite Boat Building 6 09-19-2007 07:15 AM
Bonding Steel to fiberglass jtm311 Fiberglass and Composite Boat Building 21 01-28-2006 07:49 AM
bonding plywwod to steel capt'n ron Materials 6 09-14-2005 08:55 PM
epoxy to gel coat bonding Guest portpenncrab Boat Design 1 10-22-2003 08:44 PM


All times are GMT -5. The time now is 12:18 AM.


Powered by: vBulletin Copyright ©2000 - 2012, Jelsoft Enterprises Ltd.
Web Site Design and Content Copyright ©1999 - 2012 Boat Design Net