Re Gelcoating - SailNet Community
LinkBack Thread Tools
post #1 of 1 Old 06-25-2002 Thread Starter
Contributing Authors
Join Date: Jan 2000
Posts: 325
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 18
Re Gelcoating

I have ground the hull down through the hundreds of layers of paint and have now hit gelcoat. I plan to take that down to bare fiberglass because the gelcoat has obviously seen better days. So what's next? Is it best to apply new gelcoat or simply paint the bare fiberglass with some sort of waterproof paint?

SailNet responds:
You're definitely demonstrating the right attitude: fix it correctly this time. Of course that means that you'll encounter a lot of work initially. If you do take all of the old gelcoat off, remember that the function of the gelcoat is twofold. It protects the inner laminations from moisture penetration, and it gives the hull a smooth finish for performance and aesthetic purposes. Once you take it down, you'll face a tough job getting the surface smooth and fair again. If that's not important to you, blast away.

Now to seal the fiberglass, we recommend that you find a top-quality coating that's manufactured to be used as a barrier coat. Yes, you can use gelcoat, but most gelcoat products are rendered in polyester resin, and that's more water permeable than an epoxy-based coating. So why not try something like Corrocoat FC 2100, which is a 100-percent solid epoxy. (That description means that you don't have to worry about shrinkage after application because there's little to no solvent added that will evaporate after you apply the product.) This stuff is available in gallon amounts for $125. Of course there are other products on the market, and part of your decision will come down to what is available in your area and what's reasonable regarding the cost.

Best of luck with your project.

SailNet is offline  
Closed Thread

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

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

BB code is Off
Smilies are On
[IMG] code is Off
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