Thread Tools Display Modes
Old 06-13-2009   #1
napa, California
Paddling Since: 2
Join Date: Jun 2009
Posts: 1
Raft Repair

I have a 1989 West Marine sportboat raft made of hypalon. The floor has has been covered/coated with some junk (has major leaks) and I am thinking of doing a Flexane FL-80 overcoat to cover the entire bottom as explained in this thread. The pictures of my raft are here.

My questions are, 1) Should I attempt to remove the older added strips of patch material before using the flexane? 2) Will there be a problem with cleaning and attachment of the flexane to the current bottom material and glue? 3) Would water get trapped (from the top inside of the raft) and be troublesome in between the old floor material layers (that are separating) and the flexane? 4) Another option it seems would be to use this hypalon wear patch material.

Also someone cut out a 5/16" single board for the floor, he sanded it good and rounded the edges and painted it. Would you recommend using that or making a new floor piece (with 4-5 crosslength pieces with hinges and aluminum rods).

Another thing is that one of the 690 BV halkey roberts valves has a very minor slow leak, could I clean or is it complicated to replace the valve. Also the transom drain valve has a thin flat round rubber piece with a stem and I pulled it out to clean it and now can't get it back in. This is not that big of a deal because there is also a tapered rubber plug also which I can just tap in extra good.
Attached Thumbnails
Click image for larger version

Name:	1.JPG
Views:	131
Size:	325.3 KB
ID:	1595   Click image for larger version

Name:	2.JPG
Views:	138
Size:	324.4 KB
ID:	1596  

Click image for larger version

Name:	3.JPG
Views:	126
Size:	325.9 KB
ID:	1597   Click image for larger version

Name:	4.JPG
Views:	129
Size:	335.4 KB
ID:	1598  

Click image for larger version

Name:	5.JPG
Views:	130
Size:	334.3 KB
ID:	1599   Click image for larger version

Name:	6.JPG
Views:	126
Size:	320.8 KB
ID:	1600  

Click image for larger version

Name:	7.JPG
Views:	123
Size:	314.7 KB
ID:	1601   Click image for larger version

Name:	8.JPG
Views:	125
Size:	328.8 KB
ID:	1602  

Click image for larger version

Name:	9.JPG
Views:	126
Size:	327.2 KB
ID:	1603   Click image for larger version

Name:	10.JPG
Views:	120
Size:	330.2 KB
ID:	1604  


redrockmtn is offline   Reply With Quote
Old 06-14-2009   #2
Goldendale, Washington
Paddling Since: 1984
Join Date: Feb 2008
Posts: 16
Okay, this assumes that you are getting the flexane cheap because it isn't really cheap stuff, and judging from the pictures, I don't think you want to put a whole lot of money into this boat, correct?

Okay, I did not get rid of the older patch material on my raft, and I don't think I would recommend getting rid of it. It goes over very nicely, and adds another layer of protection. It seems to help hold patch jobs in place, but I wouldn't want to bet on it being very good patch material by itself, if that makes sense.

You should have no problem with the flaxane sticking to the bottom of your raft. It is like tar, and I doubt there is anything it won't attach to. It would be interesting to put it on a CPVC pipe to see how it does. I'd bet it would stick to that, even. I forget my original thread and precisely how I prepared the bottom, but I think it was just cleaner (I used rubbing alcohol), light sanding to rough it up (and I don't know that it really needed it, but I am use to doing it when I do a patch), and then alcohol again to get the sanding dust off. That's it, and it will stick like mad.

Keep in mind that on mine, I did the entire underside because it was an inflatable floor, and I had hundreds of pinhole leaks that were a constant problem This cured it, and while the rest of the boat ended up dying on me, the floor was amazing. BUT, when I did my bucket boat, I only went along the areas that were worn, and the areas where there had been long patches. If I were doing your boat, I wouldn't do the entire underside. Not becuase it won't work, but because you probably don't need that. I went all the way down the tube because the wear pad was pretty darn worn. But everywhere else, I just went across, sealed over some problem areas, reinforced at the first thrwart, where I seemed to get leaks from my cooler barging into the rocks, etc. That said, I have never had any water get trapped from the top by getting into areas. The flexane will not give pockets for water to be trapped, and the top should be patched in a traditional fashion if you have any large "flaps" around.

That's all I can do for you. I haven't had to replace a valve or put a floor down....yet.

The bottom right picture of the red rubber desintegrating. That would be an excellent test of the flexane. Sand away all the lose stuff, and spread it on, and I'll bet it does wonders. Good luck.

kvrdave is offline   Reply With Quote
Old 06-14-2009   #3
raftus's Avatar
Boulder, Colorado
Paddling Since: 2000
Join Date: Jul 2005
Posts: 1,128
I'd definitely sand - or better yet get a rotary plastic brush to use on a drill - the kind you might use for paint striping, and go to town roughing up everywhere you plan to add flexathane or patch material. Then use toulene to clean up the dust. Hyside also sells these brushes in two or three different grit levels - they work a lot better than metal brushes.

Caswell Inc. - Abrasive Nylon Bristle Brushes

raftus is offline   Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Topic Thread Starter Forum Replies Last Post
Raft repair jfredericks Whitewater Rafting 2 05-27-2009 05:49 PM
Raft Repair ? again! thogan Whitewater Rafting 8 07-30-2008 05:55 PM
How do I repair my raft krashhadley Whitewater Rafting 2 05-06-2008 09:21 AM
raft repair in GJ AndTheLab Whitewater Rafting 3 01-30-2007 09:41 PM
Raft Repair ????? jahmon77 Whitewater Rafting 8 11-11-2006 10:45 AM

» Classified Ads
Sawyer 10' counter...

posted by rrrlotus

Sawyer 10' counter balanced oars - fiberglass...

Hyside Pro 13.0

posted by jconnsurf

2014 Blue Hyside Pro 13.0 in very good condition. Three...

Maravia 14 x 22 Cataraft...

posted by Music

2016 Maravia Custom Built 14 x 22 Cat... MEEEOOOWWW!! I...

Powered by vBadvanced CMPS v3.2.3

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2012 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 12:20 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.