It creates a semi permanent seal and is reenterable.
Electrical conduit spray foam.
Invert can and insert it into the gap between wall and electrical box.
Fst is a proven solution that has been used for years to protect switchgear panels riser poles combiner boxes meters and all types of electrical and telecommunication apparatus.
There have been failures in the wiring because of the heat that can build up in the covered wires.
Wipe away imperfections with a cloth soaked in great stuff foam cleaner.
Activate can by pulling the trigger.
Store upright with a foam dispensing gun attached.
The fst seal has excellent adhesion to pvc rigid steel emt imc fiberglass and polyethylene conduits.
1 normal spray foam has chemicals in it including solvents and formaldehyde which dissolve the insulation on electrical wiring ditto to caulks 2 putting foam in there will thermally insulate the wiring potentially causing it to heat up more than it should.
When ready to change cans shake the new can of foam for a minimum of 60 seconds.
Always leave a can of foam attached to the gun with the flow control screw closed.
In their continuing education class the instructor mentioned that the national electric code is monitoring the use of field applied spray foam and electrical wiring that becomes imbedded in the process.