Aluminum brazing rods to fix propellar?

[OldMerc]

I have an alumium prop with a couple chunks taken out of it about the size of a quarter. I would like to fix it up and keep onboard as a spare, but any prop shop charges as much as another used prop. Has anybody tried aluminum brazing rods such as these to fix a prop? http://durafix.com/

They even show fixing a prop on their website, but I have to wonder just how well this stuff sticks...since it isn't actually "welding" anything.

[merc200]

I would not braze your prop, Find a good welding shop and have it tig welded, the brazing will not have enough penetration to hold properly.

[hsbob]

and then if you dont have real al tig experence you'll destroy the prop before you fix it.