I think you're referring to Oratex. In the answer is no. This is such a new fabric that it hasn't been service long enough that anyone really is needed to punch test it.

Great question. There are several points that can be made here. First of all during the early years of the life of an aircraft and experienced mechanic can identify that there is no need for a punch test. Typically, after the aircraft starts to show some signs of UV damage is when we really need to start testing the fabric. When the fabric is new it is much more elastic. And typically will stretch back to nearly invisible. As the aircraft gets older and the fabric starts to deteriorate is when these dimples no longer flatten out again. That's one of the clues that the fabric is getting a little older. Using a heat gun on stabilized Dacron has always been considered to do more damage to the fabric than good. In order to" force" the fabric to stretch even tighter than when it was originally stabilized would require temperatures that compromise the integrity of the fabric. Keep in mind, that even using the punch tester is considered only a tool to assist in determining the condition of the fabric. In the instructions for the punch tester it is identified as such. "The Maule fabric tester is inspection aid. Through its use, the inspector is certifying that in his judgment, based on the FAA and industry standards, plus his training and experience, the fabric is acceptable for return to service". Personally, on new aircraft, I rarely use the punch tester. But remember, I have years of experience, and have punch tested literally hundreds of fabric surfaces to failure. In our maintenance class, we have a series of a dozen different surfaces of different conditions to allow our students to punch test all the way to failure to establish a sense of when the fabric is getting close to its limits. All this being said, I hate those dimples too.

Anecdotally, the dark colors seem to hold up better. No definitive tests about this that I can find.

@@RainbowAviation In my plastics backround we added carbon black to block UV at the very surface. It is all about UV penetrating into the material. Notice the clear plastic degredation vs black plastic. Some of our products had 45000 year half life in direct sun exposure as long as they were BLACK!!

The .095 dia tip calculates to 159,160 lbs/sq ft using the 10 lbs test standard. Maybe 10 lbs for a square inch tip; at least that's only 1,440 lbs/sq foot load. Ultralights are in the 3 to 6 lb/sq ft wing loading range. Who's doing the math?