drilling/plugging holes in verticals - SailNet Community
LinkBack Thread Tools
post #1 of 4 Old 06-15-2001 Thread Starter
Join Date: Aug 2000
Posts: 32
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
drilling/plugging holes in verticals

Hi there,

I need to add a couple of eyes to hook a teather into just outside the compnionway in the cockpit. So typically, I''d drill the hole, hollow out the balsa-core, fill with epoxy, redrill, and insert the hardware. However, I am stomped on how to accomplish this with the surface in this case being vertical instead of horizontal. I checked the sections where I''d like to drill, and they are balsa-cored. If anybody has done this before, I''d love to get a few pointers.

The only thing I''ve come up with is to not do the hollow/fill gig, but just drill a hole for the HW that slants upwards so as to discourage water from flowing in. Not sure about capillary action, though.

cditzen is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
post #2 of 4 Old 06-16-2001
Senior Member
paulk's Avatar
Join Date: Jun 2000
Location: CT/ Long Island Sound
Posts: 2,845
Thanks: 4
Thanked 45 Times in 44 Posts
Rep Power: 18
drilling/plugging holes in verticals

If you mix in enough microballoons, the epoxy mixture should be stiff enough not to run out of the hollowed out area. You can also tape over the hole once it''s been filled to help ensure a smooth surface. Since it''s for a safety harness tether, you may also want to add a backing pad or plate to the inside.
paulk is offline  
Quote Quick Reply Share with Facebook
post #3 of 4 Old 06-17-2001
Junior Member
Join Date: Apr 2000
Posts: 28
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
drilling/plugging holes in verticals

I''ve just dealt with this. 72 holes on the starboard side to hold two acrylic portlights to the exterior cabin structure. A learning process as I went...no doubt the forward portlight is better sealed than the aft one. I used West Epoxy but found that with two much filler, I could not inject it very well using their syringes. So, I ended up putting another small hole over the original bolt hole, and into the hollowed out area balsa core. This hole was then plugged with polyester resin and then gel-coated, after I had re-drilled the bolt hole and checked to see that the epoxy completely surrounded the new drille hole. No one who has seen it can tell the difference except that the new gel-coat material is glossier than the original interior coat; painted on, not a mold. Have not yet figured out how to lower the gloss on the new gel-coat. On the starboard side, which I am doing now, I am using polyester resin as the filler, not epoxy, and the process is going much faster.
BenDaniels is offline  
Quote Quick Reply Share with Facebook
post #4 of 4 Old 06-18-2001
Posts: n/a
drilling/plugging holes in verticals

The problem with using Polyester as the filler is that:1. it shrinks more on setup and so pulls away from the core leaving room for water to get to the surrounding core, 2. It does not actualy seal the wood, 3. it is far weaker than epoxy and so will shatter. I used polyester to replace the core in a high stessed area of a boat I owned some 13 years ago. Two years or so later the deck was crushed again and the hole was full of polyester chips.

Quote Quick Reply Share with Facebook

Quick Reply

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
Patching Screw Holes yesterdayswine Gear & Maintenance 7 06-14-2009 11:12 PM
Punch holes...Please! CherylannJohn Cruising & Liveaboard Forum 7 07-12-2004 06:17 AM
holes in the mast jbarros Gear & Maintenance 1 08-07-2003 09:38 AM
How Do You Fill-In Unused Through-Hull Holes? rrobar Gear & Maintenance 2 11-27-2001 02:52 AM

Posting Rules  
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome