My H9 Taylorcraft has maybe half an hour of flight time, with maybe 1/2 an hour break in engine time on the ground, and the wheelpants are already cracking and the polyester (cheap!) resin separating (chipping away) from the cloth, cowling seems to have inherited more or less the same genes, but it looks healthier.
This is the first time that I have an airplane covered with Ultracote, this covering is a joke! Well, this past Saturday I went to the field in the early morning, the black trim on a cloudy and breeze day (83 deg.) became severely wrinkled, the red showed some sags and just a while ago I was working in my shop under the hood, inspecting things, making sure everything is tight, and the bottom fuselage surface, which is totally white is completely loose and saggy. The entire covering had been shrunk and taken care of a couple of days earlier.

Mmmmmm, now I remember why I used to call them "Disposables" (the ARF's), they haven't changed, although I must admit, they do look awful nice!! Somehow I've a feeling that these manufacturers and distributors are very well aware that all they are selling is beautiful crap!!

If this airplane turns out to be a good flier, I'm gonna strip her naked and finally put on her the Armani gown it deserves! Shoes and all!

Wow.....I built one for some friends and we have put about 30 flights on it. We haven't had any of those problems. We just added an exhaust extension.

The only problem we had was the engine mount blind nuts that came with the kit stripped. I replaced them with 10-32 screws and blind nuts and all is well.

It is a great flier. With the Saito 180 it is able to climb knife edge as well as hover. Landing it is a piece of cake.

I've been using Ultracote since it's begining and wouldn't use anything else on what I build. My planes are stored in an uninsulated, unheated attic for 9 months every year and the only ones that come down "un"wrinkled are the ones done in Ultracote.

Different strokes for different folks.

Not in Florida, it does not, humidity and heat make plastic coverings wrinkle but I must say that the Monokote covered airplanes that I had fared much better, but the Ultrakote used on this airplane is not even stable in my garage, which is air conditioned, I keep the temperature inside my house at 76 and even lower at times.
The only covering like the 'Kotes" and aside from the polyesters, that is best as far as being extremely stable at all temperatures is Ozcover, down side is that it must be painted and is not as puncture resistant as the 'Kotes, the latest Kadet I built has this covering, it is over two years old, has seen all kinds of temperatures, was kept in a warehouse for 6 months, can sit all day in the Florida sun and will not sag, much less wrinkle. It is a sure winner in this particular trait

Other than having a similar problem with the wheel pants, I have not had any problem with my Taylorcraft. I live in Florida as well and have not experienced any problems with the Ultrakote covering on my Taylorcraft. I use Ultrakote on just about every plane I own.

Do you mean that the black and red trims are not wrinkling and sagging when under the sun, are you flying it now in the summer ?

If that is the case I wonder why is the covering in mine doing this?

Walter, I've had nothing come unglued from the Ultracote and I keep the plane in a very warm garage. Yes, I fly it a couple of days a week, two or three flights each time. The only time I've had to reheat the covering was on one of the ailerons and that was some time ago.
Maybe, on occasion, the manufacturer has a quality control problem. We have another club member with the same T'Craft and he has not experienced any problem either.

Well, my luck! Thanks for the input.

This is odd. The only time I've reshrunk the covering on mine is when I took it out of the box a year a go. It's stays in my sealed trailer which I'm sure gets very warm here in Arkansas. My wheel pants also have some chips and cracks cause I do fly off grass most of the time but strength wise they are holding up real good. My Taylorcraft has been well worth the money I paid for it. One of the better ARF values out there I think.