I put MG chemicals silicone brush on conformal coating on my welder PCB 24 hours ago, today I gave it a shot and its freaking brittle. If I run tweezers on it, it flakes off like molten sugar.
I thought it should be like... hot glue or something. Why did this stuff get so brittle? Bad product? Am I doing it wrong? I know maybe the cleaning was not done perfectly.. but I thought it would peel off, not crack off, even if poorly adhered.
I had some drip on the table I was working on too, and it was pretty brittle. I was expecting like a gel.
It does say it contains acrylic, but it seems kinda... weak and flaky.
I think I used the same one last year, and on the underside of one of the PCB it flaked all off, on the main board. I thought it had to do with bad cleaning maybe, this year I spent 1/2 a can of solvents to basically hose it down, and then dried it with heat for a while.
If I have to do it again maybe I can use q-dope or something, because it seemed to work for me, but I did just buy and apply this stuff. Its probobly g oing to stay on until something breaks again because I had it with this mother fucking goop on my mother fucking board
I have a window sealer silicone, that flows well, and it cures into a rubber type substance. But this cures brittle, even on a piece of steel that it dripped on. Is this supposed to happen? Its crummy.