Cruisers Forum
 


Join CruisersForum Today

Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 04-08-2017, 08:03   #1
Registered User

Join Date: Sep 2012
Posts: 15
Underwater emergency grp repair

We lost focus yesterday and kissed a rock at the forward part of the keel. The damage is thru the barrier and into the grp. I can see the mat for about 14". Can I cover the glass mat with an underwater epoxy or do I need to haul out immediately? I need to travel at least 1day to get to a yard. We do not have keel bolts and there appears to be no more damage other than some scratches down to barrier coat.

Rob
Joyeux
Southern Sardinia
__________________

__________________
Rob
SV Joyeux
svjoyeux is offline   Reply With Quote
Old 04-08-2017, 09:05   #2
Senior Cruiser
 
DeepFrz's Avatar

Cruisers Forum Supporter

Join Date: Mar 2006
Location: Winnipeg
Boat: None at this time
Posts: 8,173
Re: Underwater emergency grp repair

If you are not taking on water then just sail to a haul out yard and work on the problem on the hard. The area around the scratch may need a little drying out but if you use underwater epoxy you will have to grind it all out anyway.
__________________

DeepFrz is offline   Reply With Quote
Old 04-08-2017, 19:16   #3
KJB
Registered User
 
KJB's Avatar

Join Date: Mar 2011
Location: SF Bay Area
Boat: Mason 38 CC Ketch
Posts: 145
Re: Underwater emergency grp repair

Google "Splash Zone". It has been used successfully for such things.
KJB is offline   Reply With Quote
Old 04-08-2017, 20:23   #4
Marine service provider
 
newhaul's Avatar

Cruisers Forum Supporter

Join Date: Sep 2014
Location: puget sound washington
Boat: 1968 Islander bahama 24 hull 182, 1963 columbia 29 defender. hull # 60
Posts: 6,419
Re: Underwater emergency grp repair

Second if no water ingress go to haulout facility and let the damage dry and then repair it as needed.
__________________
Non illigitamus carborundum
newhaul is offline   Reply With Quote
Old 04-08-2017, 21:47   #5
Registered User

Join Date: Jun 2017
Location: Subic Bay Philippines
Posts: 539
Re: Underwater emergency grp repair

Yes, under water epoxy will work just fine until you desire to do a scheduled lift out. either way it will need drying and grinding preparation to repair in the correct manor,

Have done numerous repairs under water that stayed there until the end of the sailing season

Cheers Steve
Captsteve53 is offline   Reply With Quote
Old 05-08-2017, 07:28   #6
Registered User

Join Date: Apr 2013
Posts: 931
Underwater emergency grp repair

Problems at sea usually occur incrementally -- a small problem grows step by step. Before you leave for another marina figure out a "kit" in case the issue worsens underway. That might include canvas, precut thin plywood and other goodies the forum can suggest.

You must be prepared for it to get worse, underway, and self-resolve the issue. If waiting a couple days meant you could buddy boat on the trip it would be well worth waiting IMO.
SecondBase is offline   Reply With Quote
Old 05-08-2017, 10:46   #7
Registered User
 
Cadence's Avatar

Join Date: Dec 2008
Location: SC
Boat: None,build the one shown of glass, had many from 6' to 48'.
Posts: 7,645
Re: Underwater emergency grp repair

Quote:
Originally Posted by DeepFrz View Post
If you are not taking on water then just sail to a haul out yard and work on the problem on the hard. The area around the scratch may need a little drying out but if you use underwater epoxy you will have to grind it all out anyway.
Cadence is offline   Reply With Quote
Old 06-08-2017, 07:44   #8
cruiser

Join Date: Jan 2012
Location: Lake Ontario
Boat: Douglas 32 Mk II
Posts: 2,722
Re: Underwater emergency grp repair

Sounds like you have an encapsulated keel.

If so, the GRP is likely 1.5" + thick on the bottom of the keel.

This is not likely an emergency.

If the gouge is even through 3 layers of glass, you likely have at least 10 more.

If it is chopper gun construction , you likely have even more thickness.

If not taking on water, I would check it next regular haul out at an inexpensive or DIY yard.

If you haul out in a cold climate, I recommend it be properly repaired before freeze up.

This is a situation where encapsulated keels (especially full) really shine. I have pulled several boats of rocks, and encapsulated keels rarely suffer serious damage.

GRP repairs represent about 30% of our business.

A little glass and fresh barrier coat when you get to it, and good to go.
__________________

ramblinrod is offline   Reply With Quote
Reply

Tags
emergency, enc, water

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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
Thread Thread Starter Forum Replies Last Post
Bow GRP repair after hitting a rock island gtpinhei Construction, Maintenance & Refit 22 08-11-2015 22:20
Emergency underwater hull repair!!! jordiebsocal Health, Safety & Related Gear 46 29-09-2015 17:53
Repair underwater damage - how soon? myocean Construction, Maintenance & Refit 8 08-06-2013 00:26
Damaged GRP Repair Estimations Jani-SRI Construction, Maintenance & Refit 6 23-10-2010 15:17
emergency repair capt lar Construction, Maintenance & Refit 16 19-03-2007 13:51



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 04:10.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.