Re: black texture application
I use Dupont Wrinkle black alot, and about the same is true. But the Dupont is 10 min @ 380, any longer and it sags. And definately the base prep needs to be consistent. One of my clients sandblasts, then sometimes hits the plasma torch slag area's with a sanding roll. Fine sanpaper roll, but the Wrinkle lays down totally different in the grinded area's.
Just did a job fro another client, a bunch of flat bar. It was sandblasted, but then handled without gloves. The metal sat for just over a week, and the fingerprint area's flash rusted a bit. You could see the fingerprints through the Wrinkle, and I laid a healthy coat on too.
Moral, clean, clean clean, and Coat ASAP after cleaning/prepping
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