Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 21-06-2010, 12:59   #1
Registered User
bene505's Avatar

Join Date: Dec 2008
Location: NOT on Long Island - Look elsewhere! :-)
Boat: Beneteau 50
Posts: 453
Help - Sikaflex: I'm Sick of it and it Flexes

Is it possible to apply too much sikaflex at a keel-hull joint?

It took all day to get to the old Sikaflex, remove it, and apply new Sikaflex (using a thorough, clean-rags wipe with Xylene wipe as a cleaner/primer).

Now, due to my inferior skill on this, I have a huge thick bulging multi-bead of new Sikaflex all around my keel.

Did I go too far?

Do I need to put barrier coat on top of it, or will simple bottom paint suffice?

(Thank goodness I don't have any pictures of it.)

Email address is: b-cf "at" hallmont "dot" com

2000 Beneteau 505 "Summer Boost"
bene505 is offline   Reply With Quote
Old 21-06-2010, 15:16   #2
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2009
Location: between the devil and the deep blue sea
Boat: a sailing boat
Posts: 17,316
The keel could have been colder when you applied the sika then warmer when it was setting. If any voids left the air expands and you end up with nice bulges.

But any excess of sika can be cut off / sanded off (beware - depends on particular type you used) and some sika stuff can be painted over.

Read up and go for it.

barnakiel is offline   Reply With Quote
Old 26-06-2010, 06:52   #3
Moderator Emeritus
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 32,203
Images: 240
Apply Sikaflex®-291/292 in 20-25 mm-high triangular profiles. Each bead must form a continuous, closed ring, with no gaps. The same applies to the beads around the bolt holes.
The keel is then lifted into position, observing carefully the open time of Sikaflex®-291/292 and pulled up on the keel bolts. The adhesive that is squeezed out of the joint can be tooled to a smooth finish.
Traces of uncured Sika adhesives or sealants may be removed with Sika® Remover-208. On no account should other cleaning agents or Sika® Cleaner-205 be used for this purpose.

See page 15 of the Sikaflex Marine Handbook:
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"

GordMay is offline   Reply With Quote

Thread Tools
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
Sea Sick Cat Kai Nui Families, Kids and Pets Afloat 11 25-11-2017 16:16
Sea Sickness and Stugeron 42AFJ Seamanship & Boat Handling 36 05-09-2013 14:05
Sikaflex cburger Construction, Maintenance & Refit 4 17-01-2010 11:38
Sea-sick German Shepherd Dog Derrick Serrer Families, Kids and Pets Afloat 7 02-09-2008 07:12

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 10:59.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.