Anybody ever use this stuff?

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http://www.aluminumrepair.com/aluminum_repair.aspLooks impressive. And expensive
Reply:I haven't used that brand of brazing rod but I've used several others. They work well fixing things like irrigation pipe, aluminum boats and other general purpose items. I don't think that I'd trust them to fix a engine block, cylinder head or something like that.
Reply:I was a bit skeptical, the specs are impressive, and may be able to used on stuff like 2024 or 7075 (ive welded it before, but the welds were very brittle).I really like the way they rebuild the striped threads and simply reform missing bits. Dunno, I may try a bit of it out and see what its made of.  No flux?  wild man, just wild.
Reply:Just dont get the metal very hot, a propane blow torch is the easiest torch to use with this type of brazing rods. I haven't a clue what alloy they are or if the have some sort of flux mixed in them. With good cleaning of the surface they are a good option in some applications.
Reply:I have used their product. The aluminum rod is great as it the rod for cast iron.
Reply:If you ever hit this stuff with a TIG arc, you will wish it didn't exist.  Makes an otherwise easy wekld job on aluminum irrigation pipe a pain.  Burns like it has a lot of zinc in it.  In addition, it won't hold where there is any flexing, like on a sprinkler pipe under repeated pressure cycles.
Reply:ya gota make sure you get it all off before tigging an item that has been repaired with itit also weighs more ( than 4043/ 5356) so it will throw off the weight balance of props
Reply:Yuck.....Gypsy rod..... A restoration guys worst nightmare, good for pot metal....and thats about it...if you care about quality.