cover the area with backing cloth or paper (for easier partition from iron plate. Heat the iron plate evenly, monitor temperature elevation of the backside of the iron plate with temperature meter. As far as it reaches 160℃, stop heating and wait (meanwhile the temperature will still go up), whenever the temperature falls down to 170℃, (175℃ for iron plate of 2cm thick), press this surface to the guard with prepared prepreg. Care shall be taken not to allow the prepreg to exceed the area of the iron plate. Apply force to the plate with jack until 8–16 kg/cm pressure is reached. When temperature of the iron plate drops down to 60℃ or room temperature, remove all the apparatus and inspect the patching quality, if ok, you can operate the inflated rubber shipboard guard as usual.
If the damage is too large to repair, you have to send it back to the manuf
acturer.
