Lost my UHMW bottom

hi-last year on the south fork of the snake onder a full moon i lost my UHMW bottom of my boat. I've owned the boat for over 20yrs,but did not build it,i'am wondering what to do now.

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Permalink Reply by Dave Z on July 14, 2011 at 8:54pm
when did you find out you lost it?!!
Permalink Reply by Eric Wolfer on July 15, 2011 at 9:14pm
when we got close to the take out , I notice it the boat felt like the boat was dragging,so it must of come off right right before take out.We never hit anything .
Permalink Reply by Rick Newman on July 16, 2011 at 8:58am

Have you flipped your boat over to study the condition of the bottom, look for rusted scres and rot yet? How about a picture or two. Good luck with the repairs.

 

Rick Newman

Permalink Reply by mlwebb on July 16, 2011 at 8:59am

I think your better off without it, some here may disagree - do a search for a lot of discussions of the subject. What is left on the bottom of your boat? Pictures?

Possible solutions - epoxy and fiberglass the bottom, with graphite powder or Coat-It, or a plywood shoe.

You may have some rot from the uhmw screw holes to deal with.

Michael

Permalink Reply by Eric Wolfer on July 20, 2011 at 4:55pm
thanks for the info-the bottom of the boat is still in great shape,maybe a little rot from the screws but not bad.If i was to do a plywood shoe would i use screws to attach it and run into the same problem.
Permalink Reply by Rick Newman on July 20, 2011 at 9:24pm

Past experiences from user of the shoes suggest that it won't happen. Where has the boat spent the majority of its' life, what environment? Mountain Wes, Pacific coast, Desert Southwest?

I inquire because of the differences in the differences in temperature swings between these areas. I live in Spokane, Washington where the summer temperatures can reach 100+ degrees and winters -10 to -20. When UHMW undergoes these temp swings it expands and contracts at a different rate than the underlaying wood because its' thermal coefficient is different. So the connecting screws get pulled from the wood creating excess space hence creating entry points for moisture which then provides a habitat for bacteria which becomes "dry" rot which is as I understand it is actually the destruction of the wood by the bacteria. Sort of like mini-termites.

And you get the holes if the bottom of your boat and your UHMW shoe can fall off. I personally have not tried the system of a wooden shoe but those that have, Dave Z, Roger Fletcher for example have had wonderful luck. If I remember correctly Roger's shoe has been on one of his boats for decades. Dave Z has written quite extensively about the makeup and installation of a shoe. Use the search function at the top of the main page and check it out.

 

Rick Newman

Permalink Reply by Richard Elder on May 24, 2013 at 4:55pm

Hi Eric,

I've a sheet of 1/2 x5' marine fire ply sitting in my shop in Driggs as well as epoxy, glass, and graphite.  I'm in bed with the flu right now but still may make it over to JH. on Saturday.  Give me a call @ three o seven 413-5869

Richard

Permalink Reply by Eric Wolfer on May 25, 2013 at 12:32am

Hi Richard,thanks for the reply, is that something you could fix for me, and what might be the cost for the epoxy,glass,graphite,and labor?I live in Salt Lake City but would bring the boat up to you some time this summer.

Permalink Reply by Richard Elder on May 25, 2013 at 4:40am

Hi Eric,

I could do your repair but the timing probably would need to be sooner rather than later.  Cost would depend highly upon how much rot is there, whether the bottom were to be replaced or glassed over, how much glass to be used etc.

Permalink Reply by Eric Wolfer on May 28, 2013 at 11:31am

Hi Richard,no dry rot that i can see,the bottom is in very good condition.Do you have a ballpark amount on cost to put glass and graphite on the bottom.I have to see if this is something i can do right now.

Permalink Reply by Richard Elder on May 28, 2013 at 11:49am

Give me a call at 307-413-5869

Permalink Reply by Terry E Walsh on May 24, 2013 at 5:42pm

Good,...... now put on glass and epoxy and be done with it!

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