FYI,

I have used a heat gun for 6 SOF boats. There was some question if I could get better tension, and occasionally later the skin loosened up enough to be a problem.

I bought an ordinary iron, calibrated it to 350 degrees F per an Aircraft skinning direction (the Poly-Fiber system).

The iron took a lot more time to tension the skin, but it is tighter than I have ever gotten before.

After a week or so we will see if it stays that way.

"I'll be back" with a followup report.

One disappointment, the controlled temperature of the iron is not enough to "burn off" stray fibers on the edge of the skin. That means some more hand work (tonight). A small price to pay if this works better.

Marc