For all the descriptive words to use, "indestructible" is not the first thing that comes to mind with EPP.
Don't get me wrong, I love my little EPP Extra 300s. I have somewhere in the neighborhood of 1000 flights on this thing and probably around 400 crashes.
While playing chicken with the pine trees today, I got a little too close and opps there goes the landing gear. I used the old "Welders" adhesive and 30 minutes later I was back to using the pines as a slalom course again. As you can see in the pictures, after about the 40 or 50th crash, I quit cleaning the plane and just spread the glue right over the dirt and all.