Glue vs Tape on Wing Crack

[QuantifiedFuzion]

Plane: Sport Cub S by Horizion Hobby
Material: Styrofoam

I've very new to the hobby of RC aircraft and I'm not sure whether I should repair a wing crack with glue or tape. I'm pretty sure that tape would be the best option considering the crack is fairly minor, but I want to make sure. I would also like to know what tape/ glue would be the best (Ie" Scotch, Masking, etc.) I've attached 3 photos, one that shows the crack up close, one that shows it in relation to the rest of the wing, and one that shows the whole plane.

Thanks in advance!

Image 1: The crack up close.

Image 2: The crack in regards to location on the wing.

Image 3: The entire plane.

 

[Ron B]

Get some slow dry 2 part epoxy and do a very small test on the bottom of the fuselage if it works use it over the crack.
I have used hot glue, CA, and slow dry epoxy on my delta ray and they all work but for a crack in the wing like that I would use the epoxy as it has more strength

 

[joshuabardwell]

Definitely some kind of glue, not tape. Tape is okay for reinforcing, but I wouldn't rely on most forms of tape for repair/structural stuff. I would personally use hot glue, just because it's so easy to work with. Epoxy is not a bad choice either.

 

[xuzme720]

The best option might be Foam safe CA. It has a bit of flex when dry/cured and won't concentrate any stresses passing through the wing at the repair point. It is a bit costlier than your standard glues but sets really fast and won't melt the foam. White glue might also be an option if the foam cooperates.

 

[QuantifiedFuzion]

Thanks everyone for your input, it's greatly appreciated! Although, considering I got 3 different answers, I'm just going to bring the plane to a local hobby store and have the guy check it out see what he recommends. Thank you all for your willingness to help and kindness on the forum!

 

[joshuabardwell]

Do what you like, but honestly, I think you're over-thinking it. The only thing to be careful of is that standard CA will dissolve/soften EPO foam. Hot glue or epoxy will work fine, or foam-safe CA if you have some. It's all good.

If you don't already own a hot glue gun, this could be a good excuse to pick one up. There are about a million uses for one once you own one. Make sure it's a high-temp or variable-temp option, as high-temp glue sticks a lot stronger.

 

[xuzme720]

It's foam and therefore pretty forgiving. Any kind of glue that doesn't melt the foam will be fine. And in a pinch, tape can also be used for a temporary repair at the field. Use what you have on hand or get what you think you might get the most use out of. I keep a number of different glues on hand for different uses and materials, but most people just stick with hot glue. It just works.

 

[Nortmic]

It's foam and therefore pretty forgiving. Any kind of glue that doesn't melt the foam will be fine. And in a pinch, tape can also be used for a temporary repair at the field. Use what you have on hand or get what you think you might get the most use out of. I keep a number of different glues on hand for different uses and materials, but most people just stick with hot glue. It just works.

While I am new to RC I have a Cub myself and have two daughters that are getting into it with me so I have become somewhat of trial and error repair guy. So far the best solution I have found for foam is gorilla glue and the gorilla packing tape. For breaks I take a Qtip or cotton ball depending on size and dampen the surface of the break. Then I apply gorilla glue sparingly to the break. Then I add a piece of packing tape to the break. This prevents too much squeeze out of the glue and makes sure it fills any pics as it foams up.
For a crack like that I would use the packing tape perpendicular to the crack. These methods have worked awesome for my and the girls.

 

[Montiey]

I would use thick packing tape for that. Stiffer, and being that the wing is so thin, glue cannot do point-to-point bonding very well.

good luck!