1. Cold adhering method: with this method, you shall remove the flange, abrade (with sanding paper) the air leakage area, apply adhesive to the area, cut off and abrade a piece of rubber sheet (such as the rubber sheet from inner tyre of a car) of suitable size and adhere it to the said area, and finally tighten the flange.
2. Adding raw rubber shim method: with this method, you shall prepare a piece of thick (20mm) raw rubber plate (the raw rubber plate shall have similar physical properties as that of the inner tyre of a car, and is available from ordinary rubber or rubber product manufacturing factories), remove the shipboard guard flange, clean the air leakage area, cut off a piece of suitable sized piece of the rubber shim to block the air leakage area, and cut off one more piece of rubber shim of same size as the flange, make holes in the shim in accordance with the sizes and positions of the flange bolts, adhere the shim to the shipboard guard accordingly and insert and tighten the flange.
III. Air leakage in the body of the inflated rubber shipboard guard: This kind of trouble is normally caused by collision with sharp edged object during operation, and frequently brings about punctures in the guard. Two typical methods (cold adhering and hot patching) can be used in this case.
1. Cold adhering method: prepare a piece of elastic vulcanized rubber plate (such as a piece of inner tyre of a car), abrade it and the air leak area, apply high strength waterproof adhesive, adhere and press the plate to the air leak area.
2. Hot patching method: this method is normally used to repair relatively large puncture. If the size of breakage is less than 80mm, you can repair it on site.
