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Liquid nails on fiberglass?

Started by Cevin c Taylor, May 13, 2012, 08:47:53 AM

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Cevin c Taylor

I'm thinking of putting some wood in the interior of my CP 16.  I plan to use some screws, and I would like to use some adhesive as well.  Has anyone used Liquid Nails?  I'm just wondering if it's safe for use on fiberglass.  Fiberglass is not mentioned on the "recommended uses," nor is it listed on the things it should not be used with.  My concern is that it has some long term negative effect on the fiberglass.
Thanks

rf2

I have been rebuilding the interior of my ComPac 19 #003.  The glue * am using is Titebond II Interior and Exterior water resistant working great with wood on fiberglass.  Buy it at Lowe's stores.

Fairwinds, RF2, ComPac 19 hull #003.

skip1930

Liquid Nails I'm guessing will adhere to what ever you stick it on.
BUT!! The 'stick' will only be as good as what is under it.
So if the fiberglass is PAINTED and the paint flakes off, guess what?
So does the Liquid Nails. 'bare the fiberglass'. Any sticky swill will do.

Just my two cents.

On my CP-19 we have horizontal wood battons screwed on to blocks of wood glued to the inside of the hull. An un painted inside.
These battons sandwitch the material that has been glued to the inside of the hull and is between decorated with the horizontal strips.

skip.

shamblin

maybe you could say more about what you want to glue to what and how much weight/stress the joint will have to hold in compression/tension/sheer.

liquid nails might not be trustworthy, by itself, as a structural joint.   it might be better where wood is bolted to fiberglass and the joint stabilized by some LN between the pieces.  LN might be fine for many non critical uses.  i used to keep a glue gun of the similar pl premium construction glue for lots of non-critical stuff. 

I think it might not tolerate getting wet  and fail unpredictably.

one might compare ideas you have to knowing that epoxy sticks very well to bare wood and bare fiberglass?  But LN is much easier.

bill


Cevin c Taylor

Quote from: shamblin on May 16, 2012, 05:41:17 AM
maybe you could say more about what you want to glue to what and how much weight/stress the joint will have to hold in compression/tension/sheer.

You're right - the application is critical to answering this question.  I have cut a piece of wood to cover the inside of the wall dividing the cockpit from the cabin.  I want a place to hang things, put up some hooks, and a place to put the switch panel that can be easily reached from the cockpit.  I have removed the three screws that attach the vertical hatch slides.  Since it is 3/4" thick wood I'm using on the wall, I'll repace the 1 1/4" screws with 2" screws.  This should hold one end of the wood firmly.  The other side (toward the gunwale) I'm planning on securing with liquid nails or some other adhesive.  There should not be much stress on these pieces of wood.  I only plan to hang light things here.  I'm thinking of running a couple of ss screws with ss finishing washers through the cabin/cockpit separation wall on the gunwale side to secure that end as well, but I would like to avoid perforating that wall unless I have to.