Just a dumb question

[steveooo]

Originally Posted by FISHIONADO

Goop does not develop air bubbles over time, this only occurs during the curing phase, once it is cured it is stable. The air bubbles come from chemical outgassing and usually indicate too much Goop was used, or you had contamination on the mating surfaces. Clean everything with alcohol. You want a very thin layer of goop if you use that method, sound doesn't travel through a thick layer of goop very well even if no bubbles, it will actually become an attenuator.

Exactly. Goop will not "develop" bubbles If there are bubbles, I would say that the install was the issue, not the goop. Also you gotta prep the surface well. This means scuffing the surface good with a heavy grit sandpaper, and making sure there is no plastic dust left. I had to sell my first hobie with the 'ducer still installed, because I literally could not remove it. I tried prying it with screwdrivers, scrapers, even tried cutting it out with a razor, but it was stuck so bad that it wasn't going anywhere. Goop is some sticky stuff, and you do not need alot of it.