Neutronium95
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- Jan 17, 2010
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I'm planning on testing out a bunch of different structural epoxies, focused on surface mounted fins for high performance flights.
Right now I'm thinking that I'll make a bunch of fin cans with sections of 38mm fiberglass tubing, and 2" square fins epoxied on with some consistent fillet radius. After that I'll see how much force it takes to break each fin off, and see what can be learned. I'm not so certain about the experimental design to break the fins off yet, but I'll figure out something solid before I get to actual testing.
Right now, I'd mostly like input on just what epoxies to test. This list is what I'm thinking of for now, but I would love suggestions on things to test.
Epoxies to test:
Right now I'm thinking that I'll make a bunch of fin cans with sections of 38mm fiberglass tubing, and 2" square fins epoxied on with some consistent fillet radius. After that I'll see how much force it takes to break each fin off, and see what can be learned. I'm not so certain about the experimental design to break the fins off yet, but I'll figure out something solid before I get to actual testing.
Right now, I'd mostly like input on just what epoxies to test. This list is what I'm thinking of for now, but I would love suggestions on things to test.
Epoxies to test:
- BSI 5 minute (gotta start somewhere)
- JB Weld (best you can get from a hardware store)
- Thickened West Systems (a classic)
- Rocketpoxy
- Aeropoxy ES6209
- Proline
- This stuff from Temu (I've heard it's surprisingly good, and it's dirt cheap)
- 3M DP420NS (Actual professional grade stuff)
- Loctite e-120-hp (See above)
- Infinity Bond EP 420 NS (Seems very similar to the 3M, but significantly cheaper)