Ok so I’m working on my carnival rides. I’m trying to glue the plastic pulley to the metal shaft of the motor. What kind of glue would I use for this?? Regular model cement is more of a plastic on plastic I think. (I did try it…it didn’t hold very long.)
If anyone has run into this before please give me a clue. Thanks. [8D]
ACC glue work best in this case. (super glue)
I was thinking about that but wasn’t sure. Thanks, I’ll give it a shot.
I’ve used Gorilla Glue to mount plastic bridge girders to aluminum angle, it holds real well. However, there are two caveats:
John
I have not had good results with super glue in sheer. It works well in radial ashesion (up and down), but not sideways, in my experience.
I would take some trouble to score (rough up) both the shaft and the inside of the pully hub, and then glue with Weld Bond, Gorilla Glue, a two-part 5-minute epoxy, or something similar. Ideally, you would ream out the pully shaft enough to force a starred bushing into it, and then solder it to the metal shaft. That would be darned near foolproof.
I have used gorilla glue diluted with MEK (2 parts gg to 1 part MEK). This makes it paintable with a small brush and seems to reduce the swelling as it cures. It’s plenty strong. Sticks anything to anything.
George
I use CA (cyanoacrylate, I think) for a lot of stuff like this. I’ve got the 2-part stuff, with the thick “gap-filling” option. First you apply a bit of the thick stuff, and then fit the pieces together. It will eventually harden by itself, but if you just touch on a bit of the thin “fixer” then it sets up in a few seconds. That’s great, because you don’t have to support it in place while you wait for the glue to dry.
Note: If you spill this stuff on your hand, don’t slap your forehead and say , “D’oh!” It really does glue body parts together pretty firmly. No, that’s not from personal experience.
Liquid superglue sticks plastic gears to motor shafts securly if you make sure and clean the grease and oil off of each. As said, scratching ihe motor shaft with some emery lenghtwise will improve the bond. If you do it be sure you never want to disassemble or move the gear or whatever because it will not come off without breaking. Lot of time though there is an underlaying cause for loose gears, like they are old and dried out (and brittle) or they are split. If this is the problem it’s best to try and get a replacement if possible. Fred
Carnival rides was my side biz, built custom HO scale rides before returning to model RRing full time. In most of my custom rides, I have to bond metal to plastic or wood. I use an epoxy resin if I need an extra strong bond. Super glue and such works alright although sooner or later it may give you problems. If you have any problems or need additional help, contact me at: hazmat9@hotmail.com
I use a Permatex product called Super Weatherstrip Adhesive. The P/N is 8173180. It is available in Auto Zone and other parts stores. As the name implies, it is used for bonding rubber weatherstrip to metal. Works equally well for plastic to metal. Very similar to Walthers Goo but it does not dry out as easy.
Jim
Only thing to give strong results is 2 part epoxy. The longer the cure time, the stronger the joints. Cleaning with MEK or Acetone is a requirement as epoxy will NOT stick to any oily surface. Roughen up both pieces as any other adhesive.
BB
Thanks for all the advice guys. I did my first one with superglue so I will see how that works out. I have 2 more rides to assemble so I will wait a little bit to see how long the superglue works.
Aww…I wanted to hear a funny story.
I have had good results with the 2 part epoxies (my favorite was actually the elmer’s 2 part epoxy, but I can’t find it anymore). The Duro Glue (green tube) works well for my metal on metal stuff for miniature tanks and soldiers. Haven’t had a problem with rough handling breaking the joints with it at cons.
I have never had success with super glue on anything. Sooner or later, it breaks loose. I have used two part epoxy to glue rail to plastic. Several Walthers kits require that. So far so good. I also used the epoxy to glue rails to the service pits of my South River roundhouse which is a plaster model. Also holding up well.
small hot glue gun works
Im doing a layout to and I bought Gorilla Glue it might be a little expensive but IT SHURE WORKS GOOD! be careful on how much you use it foams up but it holds good
-I hope ive been of some help
Did a search on google and everything I found on gluing metal to plastic came up with CA adhisive. All recomended it. I think it was CA I used when I repowered an athearn engine I was working on. Just remember it is a shot deal.