Will Wood Glue Bond Styrofoam? Shop Built Air Conditioner.

  • Advertise with us

« back to Focus on the Workspace forum

Forum topic by LoyalAppleGeek posted 05-25-2016 12:34 AM 1096 views 0 times favorited 12 replies Add to Favorites Watch
View LoyalAppleGeek's profile


160 posts in 923 days

05-25-2016 12:34 AM

Topic tags/keywords: air conditioning styrofoam glue

Greetings and salutations!

I’m building an air conditioner for the shop here, it’ll be sunny and 70 soon. I know, that may not seem very hot, but I’m a Swede, I overheat when it gets above 50 degrees. Since I work pretty much exclusively with wood, TiteBond ll is the only glue I keep stocked in large quantities. I’ll need to glue up some styrofoam for the unit, and was wondering if anyone has tried using wood glue for that application.


12 replies so far

View conifur's profile


955 posts in 1180 days

#1 posted 05-25-2016 12:42 AM

Never tried it, do a sample piece. Some adhesives will melt Styrofoam, I dont think Tite bond would. I just dont know if it will adhere Styrofoam.

-- Knowledge and experience equals Wisdom, Michael Frankowski

View Loren's profile


10476 posts in 3677 days

#2 posted 05-25-2016 01:02 AM

I think it will. Styrofoam is porous. If wood glue is what
you have, try it. Spray adhesive may be preferable in
some applications because it grabs instantly. With wood
glue you’ll likely want to use masking tape or something
like that to hold the parts together while the glue grabs.

View distrbd's profile


2252 posts in 2475 days

#3 posted 05-25-2016 01:10 AM

Have you considered HTB double sided tape like 3M VHB tape, that would be the first thing I try.
Loren,it’s good to see you post again bytheway.

-- Ken from Ontario, Canada

View Planeman40's profile


1179 posts in 2790 days

#4 posted 05-25-2016 03:04 PM

I just did this in lining the inside of a packing crate to send a carefully painted object. I used Titebond. I found that Titebond usually has a very tacky nature that holds things fairly well when gluing, but this wasn’t true for the Styrofoam. I had to use some light clamps until the glue set. I understand Titebond sets using moisture as a “catalyst”, however Styrofoam has no moisture in it thus it sets VERY slowly using whatever moisture that is in the air. Also, the bond is no stronger than the Styrofoam itself which is very weak, so the Styrofoam can easily be knocked loose breaking the Styrofoam, not the glue bond.


-- Always remember: It is a mathematical certainty that half the people in this country are below average in intelligence!

View Ger21's profile


1075 posts in 3160 days

#5 posted 05-25-2016 03:15 PM

polyurethane (Gorilla Glue) or epoxy is what I’d use.

-- Gerry,

View higtron's profile


237 posts in 2706 days

#6 posted 05-25-2016 03:55 PM

Silicone caulk, they also make a special caulk for Styrofoam adhesion.

-- A friend will help you move, a good friend will help you move a body

View bondogaposis's profile


4770 posts in 2380 days

#7 posted 05-25-2016 03:56 PM

In my experience it wont hold. Construction adhesive is a better choice.

-- Bondo Gaposis

View ClammyBallz's profile


435 posts in 1165 days

#8 posted 05-25-2016 06:01 PM

What bondo said!

View Planeman40's profile


1179 posts in 2790 days

#9 posted 05-25-2016 09:00 PM

Just keep in mind that even the strongest glue is no stronger than the item it is glued to. Styrofoam is about the weakest thing there is. So the Styrofoam will break waaaay before the glue bond does!!! Don’t expect much in the way of strength.

-- Always remember: It is a mathematical certainty that half the people in this country are below average in intelligence!

View Nubsnstubs's profile


1300 posts in 1759 days

#10 posted 05-25-2016 11:06 PM

After reading the comments, it looks to me that duct tape is in your future…....... Jerry (in Tucson)

-- Jerry (in Tucson)

View Dark_Lightning's profile


3165 posts in 3138 days

#11 posted 05-26-2016 12:52 AM

Don’t expect the styrofoam to keep its shape or remain in place if you just glue it. Your best bet is to encapsulate it in something else that has more structural integrity. If the application will never get wet, you can use corrugated cardboard to hold the styrofoam in place. Just enclose it like you would with insulation inside the walls. Alternatively, if you can build a flange which the styrofoam can be stopped from moving, that would be good enough. It only takes a piece of sheet metal where the styrofoam gravitates to. It holds itself together well enough when only in compression with itself.

-- Random Orbital Nailer

View splatman's profile


586 posts in 1428 days

#12 posted 05-26-2016 02:37 AM

Laminate the Stryo between 2 layers of plywood, with boards around the perimeter as a frame. Now you’ll have an insulated panel with the durability of plywood all around. Strong, too, due to the same principles behind torsion panels, which is basically what this will amount to.

In my experience, glue will adhere to EPS stronger than EPS.
EPS = Expanded PolyStyrene: The white beady stuff from which packing blocks are made.
Styrofoam = The blue stuff, aka XPS: Extruded PolyStyrene. XPS has a smooth surface that will need to be roughened (use sandpaper) before gluing with wood glue.

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics