This is a tool we used to fix a tank leak from inside. Inspection camera (connecting to a laptop), a paint brush with proseal and then doing the surgery via the tank hole. It takes a while to practice but then works pretty well.
Building our airplane
This is a tool we used to fix a tank leak from inside. Inspection camera (connecting to a laptop), a paint brush with proseal and then doing the surgery via the tank hole. It takes a while to practice but then works pretty well.