If your main goal is surviving gate hits, the honest answer is that no prop material is truly “impact proof.” Props are meant to flex, absorb shock, and fail before they send damage into the motor or shaft. That said, some materials do last noticeably longer than others depending on how you crash.
For most FPV racing and freestyle builds, standard polycarbonate props tend to be the best all-around choice. They are light, reasonably flexible, and usually survive glancing gate strikes better than stiffer materials because they can bend and spring back instead of snapping immediately. The downside is that once they do crack, they can split fast, especially at the hub or the tip. They also get chewed up quicker when you are repeatedly hitting plastic gate edges or metal parts.
If you want maximum toughness rather than pure performance, reinforced nylon or glass-filled nylon props often last longer in rough contact. They can take abuse better than cheap brittle plastics, and on some builds they feel a little more durable after repeated minor strikes. The trade-off is that they are usually heavier, which can hurt throttle response, reduce efficiency, and make the quad feel less locked in. On a race setup, that extra weight can matter a lot more than people expect.
Carbon-filled props are a mixed bag. People often assume “carbon-filled” means stronger in every way, but in practice they can be stiffer and more brittle. That stiffness can be good for crisp control, but it also means a hard gate impact may turn into a clean snap instead of a bend. For gate-heavy racing, that is usually not what you want. The prop may feel sharper in the air, but you can end up replacing them just as often, sometimes faster.
Three-blade props usually survive abuse a bit differently than two-blades. They often have more material near the blade roots, which can help with minor impacts, but they also add drag and can put more load on the motors. If your priority is durability over speed, a slightly thicker tri-blade in a standard flexible nylon blend is often a decent compromise.
In real use, the best approach is usually not chasing a magic material. It is matching the prop to the kind of crash you actually have. For repeated gate bumps, a flexible polycarbonate prop from a reputable brand is often the sweet spot. If you are hitting gates hard enough to tear through those regularly, the bigger fix may be tuning your line choice, lowering your prop pitch, or using props with a thicker hub and base. Also, make sure your motors are straight and your screws are not over-tightened, because a damaged hub will fail much faster after every impact.
If you want the shortest practical recommendation: start with a quality polycarbonate prop, then test one or two tougher nylon-based options if you are breaking them too often. The “best” material is usually the one that gives you enough durability without making the quad feel heavy or dull.
