AAflyer
Well Known Member
After what I thought was much judicious research, I found an off-the shelf product to use in sealing my firewall; 3M FB136.
Unfortunately, while working on my baggage door, I discovered that it has cured rock-hard, has cracked, lost its integrity and has leached a white powder.
The label says its for "sealing interior construction voids around wires, pipes, HVAC ducts and vents, in wood or steel framed non-rated construction." I figured the interior restriction was not a problem, as it wasn't going to be exposed to the weather where I was using it. The label also says Store at temperatures above 32 degrees F. Again, not a problem as far as storage is concerned.
I applied this to my plane last fall, and since then it has been as cold as 5 degrees F this past winter, and this is the result.
I'm now chipping it away, and would love to hear some successful stories about what you used.
Unfortunately, while working on my baggage door, I discovered that it has cured rock-hard, has cracked, lost its integrity and has leached a white powder.
The label says its for "sealing interior construction voids around wires, pipes, HVAC ducts and vents, in wood or steel framed non-rated construction." I figured the interior restriction was not a problem, as it wasn't going to be exposed to the weather where I was using it. The label also says Store at temperatures above 32 degrees F. Again, not a problem as far as storage is concerned.
I applied this to my plane last fall, and since then it has been as cold as 5 degrees F this past winter, and this is the result.
I'm now chipping it away, and would love to hear some successful stories about what you used.