An aluminum boat leak is repaired with a no-flux brazing rod, such as the HTS-2000, with fiberglass or with epoxy. The brazing tool is used with a heat source such as mapp gas or propane, oxy-acetylene or a turbo tip, allowing it to heat metal together to seal leaks in the aluminum boat's body. Epoxy and fiberglass do not require heat for sealing.
Cracking, crevice corrosion and pitting are all common problems with aluminum boats, but fortunately there are many ways to fix the issues. These boats are fortunately easy to repair, and the fix does not require a welding machine. The melting point of a brazing rod is 500 degrees lower than that of the aluminum boat, allowing the rod to be used to quickly patch holes without requiring welding tools that heat to a higher temperature.
Other ways to repair an aluminum boat's leak include purchasing an epoxy repair kit. Cabelas, for instance, offers an aluminum boat patch. The patch is referred to as a fusion bondage epoxy that repairs and waterproofs aluminum boat rivets, cracks and other leaks.
Another way to fix aluminum boat leaks is to use G/flex epoxy. To do this, the repairer should hammer the metal as close as possible back to the original shape. If any parts of the metal stick up, it's important that the repairer cuts those off because they could cause issues later during the epoxy's drying stage.
When a hole starts in aluminum, the crack can be stopped by drilling a hole in the boat's body. This can be done before a repair to help prevent the spread of the crack.
Before epoxy is applied, the area where ir will be used should be sanded. Epoxy, which is like glue, will bond to the surface, and clean, sanded surfaces work best.
Prior to bonding the metal, the repairer may want to etch the surface of the boat around the area that will be sealed. The extra texture allows the epoxy to get a better grip, and this makes a stronger bond.
A patch can be purchased online or made at home. A patch can be made with glass fabric, for instance, with at least one piece used on the outside of the boat and around three on the inside of the boat. The patch and the surface of the boat will both be covered with the epoxy at this point then allowed to seal together. Essentially, the repair is being made with a fiberglass patch that is then glued to the surface of the original aluminum boat.
After the repair, the edges will have to be smoothed to allow the patch to lie flush to the boat. The boat may be discolored in the area as well. Waterproof paints should be used to help the patch match the rest of the boat. The boat is ready for the water after sealing and waterproofing take place.