Waxed vs unwaxed gel coat - SailNet Community
 
LinkBack Thread Tools
post #1 of 6 Old 04-28-2009 Thread Starter
Senior Member
 
jarcher's Avatar
 
Join Date: Jul 2008
Location: Smithfield, RI
Posts: 1,008
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
 
Waxed vs unwaxed gel coat

Hi All, I am trying to repair some large gel coat chips. These chips resulted from tearing a window frame off the boat. In some cases they are larger than the frame will cover when replaced.

After the repair is complete, I'll need to get an adhesive to stick to it.

I see gel coat comes in two kinds, waxed and unwaxed, the difference being that the waxed will cure without spraying PVA on to it. My thinking is that either way, I need to clean the area with acetone or MEK after cure and then wipe that clean. Then I need to sand it.

But, with the waxed, will there be any wax inside the gel that will remain and cause problems for the adhesive?
jarcher is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 6 Old 04-28-2009
Telstar 28
 
sailingdog's Avatar
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 15 Times in 12 Posts
Rep Power: 14
         
The waxed gelcoat is designed so that it will cure without covering it. It is a finishing gelcoat, rather than a layup one... where the gelcoat is the first layer inside a mold. The wax should surface as the gelcoat cures... and cleaning it properly with a good dewaxer should be all you need to do.

Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
sailingdog is offline  
Quote Quick Reply Share with Facebook
post #3 of 6 Old 04-28-2009
Splashed
 
JomsViking's Avatar
 
Join Date: Apr 2007
Posts: 562
Thanks: 39
Thanked 4 Times in 4 Posts
Rep Power: 9
 
The gelcoat (polyester) is air inhibited, so wax is added that flows to the surface and lets the polyester resin harden. I'd buy without wax, and then just cover the repair with plastic until it is fully hardened.
JomsViking is offline  
Quote Quick Reply Share with Facebook
post #4 of 6 Old 04-28-2009 Thread Starter
Senior Member
 
jarcher's Avatar
 
Join Date: Jul 2008
Location: Smithfield, RI
Posts: 1,008
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
 
Thanks guys, since the wax is going to come to the surface and can be removed, I'll go with the wax. Sounds easier, plus I'm buying enough so that there will be plenty for future jobs. In fact I have a bunch of chips and such all over, many in curved spots, so I think the waxed is the way to go.
jarcher is offline  
Quote Quick Reply Share with Facebook
post #5 of 6 Old 04-30-2009 Thread Starter
Senior Member
 
jarcher's Avatar
 
Join Date: Jul 2008
Location: Smithfield, RI
Posts: 1,008
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
 
My Evercoat One Step Premium Gel-Kote has arrived!

The instructions say to mix 12 drops of hardener with 1 oz of Gel-Kote.

Does it mean by weight or by volume? What do you guys use to measure it out?

Thanks...
jarcher is offline  
Quote Quick Reply Share with Facebook
post #6 of 6 Old 04-30-2009
Telstar 28
 
sailingdog's Avatar
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 15 Times in 12 Posts
Rep Power: 14
         
Volume—1 fluid ounce... not 1 ounce by weight.

Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
sailingdog is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

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

Password:


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

Email Address:
OR

Log-in









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
Bottom paint over Gel Coat without Barrier Coat? WagTheDog Gear & Maintenance 17 07-15-2012 07:33 AM
photo essay, fixing gel coat cracks scottyt Gear & Maintenance 1 03-22-2009 10:12 PM
When to sand new gel coat? Flightsport Gear & Maintenance 3 07-06-2008 10:12 PM
gel coat dm567 Gear & Maintenance 15 01-02-2007 11:55 AM
Gel coat vs epoxy for hull dpoperngr Gear & Maintenance 6 10-28-2002 11:48 PM

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