jgb1787 said..
Have modified a few fittings on my mast and looking to fill the unused holes. Doing a search on google came up with a product called HTS-2000, an aluminium repair product. www.aluminumrepair.com/ Has anyone used this product or recommend something similar. Thanks :)

I have not tried that product but I did see it demonstrated once. It all depends on how big the holes are. If it's only 3/16 rivet holes I would use Devcon Plastic steel or one of the similar lesser products. if the holes are big then Fibremax metal filler. The success is all down to preparation. Ensure the alloy is abraded down to fresh metal and apply the product immediately. File off when it goes off. Don't have to fill the hole first pass.

The product you mentioned was used at a boat show years ago where they welded alloy cans together. I got the impression it was handy for thin alloy where little heat is used.

theace said..
Hi guys. The info I got that the aluminium can welding product never went mainstream was because the fumes given off are highly carcinogenic.Next time you see it being demonstrated ask the guy if this is so and watch the colour drain out of his face. catch you later.

I would have to agree with you here. I wore a mask while i was doing it but it worked really well. "Apparently" it was developed back a lot of years ago so they could repair aluminium quickly and easily outside of a workshop.