For those who have read my build posts and watched my walkaround videos, you know I am a big fan of dollar stores for inexpensive items to use in building my planes. I'm of the mindset that if I can find something very inexpensive that still works great, I'm going to go with it.
You may also know that we have been big fans of BSI Foam Cure glue for quite a long time now, you can read much more about our experiences with that product in this thread.
On a recent trip to my closest Dollar Tree store (which is about 25 miles from me) to pick up some Adams Readiboard (Dollar Tree Foam) for use as KF airfoils, I was poking around and came upon this glue in the craft section. It is called Craft Medley Premium Craft Glue and cost me $1.25 for a 1.7 fl oz/50 ml bottle. I have only found this glue in a Dollar Tree store, since buying it, I checked WalMart and Dollarama which is another large dollar store chain in Canada and they do not carry this product.
When I got it home, I looked up the website written on the bottle www.multicraftimports.com to see if I could find any more information on the glue or if it was possible to buy it online. Unfortunately, that website only wants to deal with vendors and I didn't find any info about the glue. I did Google "craft medley premium craft glue" and found it available for sale through a site in the US in New Jersey called "Scrap That" for $2 USD. I also found a site in New Zealand, but unfortunately I didn't find the same product available through Amazon or EBay. I don't know if Dollar Tree stores in the US carry it either.
On the bottle it says it "bonds fabrics, papers, ribbons, leather, soft woods and much more." So of course I was hoping that foam would be included in the "much more". So I made some butt joints using some scrap Depron, MPF and Dollar Tree foam to see how long it took to set up, to see if it melted the foam and to determine it's breaking strength after it was completely cured.
Fortunately, it did not melt any of the three foams I tested. After applying, I checked it every 10 minutes for the first half hour and then about every half hour for about 4 hours. Cure time is pretty much identical to Foam Cure, I think for best curing time before handling certain parts, it would be best to leave it overnight.
Once it had completely set on all the butt joints, it was very strong. It still broke with sufficient force, but I would say it's strength is very close to Foam Cure. I don't have any special equipment to test this, so I made three Foam Cure joints as well, let them set up overnight and then just evaluated how much force I had to put on the pieces of foam before the glue joints broke at the same time as I was testing the Craft Medley glue joints.
I also made a score and fold test sample to see if I was able to cut and sand it like I would on a plane. Very happy to say that after complete curing, it cuts and sands just like Foam Cure so that the excess can be sanded away.
I also made a test control surface hinge using drywall tape. It spread smoothly and evenly and set up fairly quickly when spread thin. I would say in this application it might be a bit more flexible at the hinge line than I find Foam Cure to be, it took no time at all for the hinge to be flexible and free hinging. The hold strength also seems to be very similar to Foam Cure, it took quite a bit of force to twist and pull the hinge apart.