Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 08-06-2016, 21:11   #1
Registered User

Join Date: May 2015
Location: Ontario
Boat: Gemini 105MC
Posts: 18
Gluing wood to Fiberglass?

Hi all,
I purchased a seabreeze roller shade/screen for an overhead hatch.
The problem is that the old trim kit did not extend very far. The new screw holes for the shade/screen are located out past the current wooden frame under the vinyl headliner.
So can I just pull back the headliner, glue some wood in there (with 3M 5200) staple the headliner back, then drill screw into it to hold the new shade/screen?
I'm not sure if just gluing it would be strong enough.
__________________

__________________
SaltyB is offline   Reply With Quote
Old 08-06-2016, 21:35   #2
Marine Service Provider

Join Date: May 2012
Location: New Orleans
Boat: We have a problem... A serious addiction issue.
Posts: 3,940
Re: Gluing wood to Fiberglass?

Good wood glue is stronger than the wood it is attached to. But you may want to use a few tack nails to hold the new trim piece in place and apply clamping preassure while the glue is drying.
__________________

__________________
Greg

- If animals weren't meant to be eaten then they wouldn't be made of food.
Stumble is offline   Reply With Quote
Old 09-06-2016, 11:30   #3
Registered User
 
rognvald's Avatar

Join Date: Jan 2011
Location: Summer: In the land of Wooly Mammoths
Boat: Pearson 34-II
Posts: 2,252
Images: 2
Re: Gluing wood to Fiberglass?

I would use West System epoxy with high-density structural filler. Bullet proof. Good luck and safe sailing.
__________________
"And those who were seen dancing were thought to be insane by those who could not hear the music."
Friedrich Nietzsche, Thus Spake Zarathrustra
rognvald is offline   Reply With Quote
Old 09-06-2016, 11:46   #4
Senior Cruiser
 
Cheechako's Avatar

Cruisers Forum Supporter

Join Date: Aug 2006
Location: Skagit City, WA
Posts: 19,352
Re: Gluing wood to Fiberglass?

If I understand correctly it should work. If the ceiling is curved you may need to slice the plywood to get it to bend and stay against the fiberglass while the 5200 sets up. Use a few screws to hold it in place while setting up, short screws that penetrate only the inside layer of the glass/deck core.
__________________
"I spent most of my money on Booze, Broads and Boats. The rest I wasted" - Elmore Leonard











Cheechako is offline   Reply With Quote
Old 09-06-2016, 13:06   #5
sitting on the dock of the bay

Join Date: Mar 2006
Posts: 1,513
Images: 6
Send a message via Yahoo to gonesail
Re: Gluing wood to Fiberglass?

Quote:
Originally Posted by rognvald View Post
I would use West System epoxy with high-density structural filler.
me too. sets up a lot quicker than 5200 as well.
__________________
sometimes the things that may or may not be true are the things a man needs to believe in the most.
gonesail is offline   Reply With Quote
Old 09-06-2016, 21:22   #6
Registered User

Join Date: May 2015
Location: Ontario
Boat: Gemini 105MC
Posts: 18
Re: Gluing wood to Fiberglass?

I think there is a slight curve to the ceiling under the headliner so I will try the slicing technique. The glass is pretty thin in that area so I don't think I can tack it, but clamps should work through the hatch until the 5200 sets up. I have some at hand as well as PL premium but I figured the 5200 would be better for fiberglass. The PL premium is insanely strong when gluing wood together but not sure about it's ability on Fiberglass.
__________________
SaltyB is offline   Reply With Quote
Old 10-06-2016, 03:31   #7
Registered User

Join Date: Apr 2013
Posts: 4,877
Re: Gluing wood to Fiberglass?

Epoxy or 5200 should work fine. Once either sets screws no need for any other support. If it's just a thin strip. You might wedge it in place with some sticks braced on the dinnet seats, so it matches the curve. If you use epoxy get some thickener so it has a peanut butter consistency when applying and don't try to squeeze it all out. Either option, make sure you put down some plastic sheets as either will make hard to remove mess if it gets on the seats.
__________________
valhalla360 is offline   Reply With Quote
Old 10-06-2016, 04:25   #8
Registered User

Join Date: May 2011
Location: Toronto
Boat: Sandpiper 565
Posts: 2,942
Re: Gluing wood to Fiberglass?

I would definitely choose epoxy (with cotton fiber filler added for strength and thickening) over 5200 for this project. Even slow epoxy will set faster than 5200, and the 5200 smell will linger for weeks.

I mainly use 'proper' epoxy for boat work, but recently I reattached the foot of a wooden cabinet with some hardware-store 5-min epoxy - also using a bit of cotton fiber filler, and a dowel - and the results were excellent, so for the OP's applicatiion I wouldn't hesitate to use some 5-min epoxy there, which will drastically reduce clamping time.

Another option might be a polyurethane glue like Gorilla Glue, as long as the fiberglass is roughed up a bit first.

I'm not a big fan of PL adhesives, but maybe I've just had bad luck.
__________________
Lake-Effect is offline   Reply With Quote
Old 10-06-2016, 06:03   #9
Registered User

Join Date: Jan 2006
Location: North Carolina
Boat: 44 footer
Posts: 923
Re: Gluing wood to Fiberglass?

You can use hot glue in place of screws if you leave about an inch or so bare of epoxy or 5200 at each end.
__________________
Zach is offline   Reply With Quote
Old 10-06-2016, 06:48   #10
Sponsoring Vendor
 
HopCar's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: May 2011
Location: Miami Florida
Boat: Ellis Flybridge 28
Posts: 3,157
Re: Gluing wood to Fiberglass?

About ten years ago I wanted to attach some hooks to fiberglass that would hold my boat hook and brush handle. I used 5200 to stick blocks of teak to the fiberglass. I used masking tape to hold them while the 5200 set. When set, I screwed the hooks to the teak. They are still there with no sign of failing.

Im sure epoxy would have worked too but 5200 was easier.
__________________
Hopkins-Carter Marine Supplies & Fishing Tackle
What You Need, at the Price You Want...with Service!
HopCar is offline   Reply With Quote
Old 10-06-2016, 10:29   #11
Registered User

Join Date: May 2015
Location: Ontario
Boat: Gemini 105MC
Posts: 18
Re: Gluing wood to Fiberglass?

Thanks guys,
I think I will try to get some epoxy locally.
__________________
SaltyB is offline   Reply With Quote
Old 10-06-2016, 10:45   #12
Senior Cruiser
 
Cheechako's Avatar

Cruisers Forum Supporter

Join Date: Aug 2006
Location: Skagit City, WA
Posts: 19,352
Re: Gluing wood to Fiberglass?

Either will be fine. If you have a tube of 5200 around just use that before it hardens up. Aint no big thang. Epoxy doesn't have to be used for everything. To me Epoxy smells more than 5200. The other thing that will work is Gorilla Glue. It expands filling up al the voids. That stuff is tough. So tough you cant remove the lid off the bottle once you open it up.
__________________
"I spent most of my money on Booze, Broads and Boats. The rest I wasted" - Elmore Leonard











Cheechako is offline   Reply With Quote
Old 12-06-2016, 05:56   #13
Registered User

Join Date: May 2015
Location: Ontario
Boat: Gemini 105MC
Posts: 18
Re: Gluing wood to Fiberglass?

I managed to use epoxy in three corners. The fourth corner curves down to much for the wood piece to make solid contact. I'm wondering how thick I can get the epoxy or some other filler and just screw into that?
__________________
SaltyB is offline   Reply With Quote
Old 12-06-2016, 06:54   #14
Registered User

Join Date: Jan 2006
Location: North Carolina
Boat: 44 footer
Posts: 923
Re: Gluing wood to Fiberglass?

If you use chopped or milled glass fiber, or cotton flock as the filler in Epoxy, you can go in half inch layers with slow at 77f hardener or tropical hardener up to around 90f. Thinner layers the hotter it is...

You can also drill and tap the epoxy thickened with fibers for machine screws. Just make sure that you have used a solvent wash to de-wax the area, and roughed up the area with 40-80 grit until there isn't anything shiny where the epoxy is going to go.

Cheers,

Zach
__________________
Zach is offline   Reply With Quote
Old 12-06-2016, 07:05   #15
Registered User

Join Date: Apr 2013
Posts: 4,877
Re: Gluing wood to Fiberglass?

Quote:
Originally Posted by SaltyB View Post
I managed to use epoxy in three corners. The fourth corner curves down to much for the wood piece to make solid contact. I'm wondering how thick I can get the epoxy or some other filler and just screw into that?
If you get to a peanut butter consistency you can go fairly thick without it dripping down. You don't want to go much more than 1/2inch because the curing process creates heat and a really thick application can't dissipate the heat.

I would think 1/2inch would be enough to span the gap and hold the wood or you can do a second layer after the first cures.

Even if you use a different brand google "west system" they have a nice free application guide for how to do various things with epoxy.
__________________

__________________
valhalla360 is offline   Reply With Quote
Reply

Tags
fiberglass

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
Gluing Neoprene to Ceramic Dishes ? SvenG Provisioning: Food & Drink 8 08-02-2010 07:28
Gluing Numbers Onto Hypalon Dinghy bene505 Construction, Maintenance & Refit 4 05-08-2009 20:15
Gluing Hypalon to Fiberglass witzgall Construction, Maintenance & Refit 3 27-01-2009 09:03
gluing plastic together / lavac head rebel heart Construction, Maintenance & Refit 4 24-11-2008 22:10
gluing down laminate floor schoonerdog Construction, Maintenance & Refit 9 18-03-2007 15:07



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 05:05.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.