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Anybody tried glueing cast aluminum parts together with epoxy?
THe issue with aluminum is that the bond is usually to the oxide layer that forms rather than to the aluminum itself. Some folks have had good luck with epoxy and some form of "brillo" type pad or sandpaper to break this layer so that the epoxy can bond to the aluminum. With a cast part, you might get enough"tooth" to make 5200 work. If it breaks and he puts it back a few days later there won't be an oxide layer yet. -- ------------------------------------------------------------------------------ William R Watt National Capital FreeNet Ottawa's free community network homepage: www.ncf.ca/~ag384/top.htm warning: non-FreeNet email must have "notspam" in subject or it's returned |
#2
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Anybody tried glueing cast aluminum parts together with epoxy?
William R. Watt wrote:
THe issue with aluminum is that the bond is usually to the oxide layer that forms rather than to the aluminum itself. Some folks have had good luck with epoxy and some form of "brillo" type pad or sandpaper to break this layer so that the epoxy can bond to the aluminum. With a cast part, you might get enough"tooth" to make 5200 work. If it breaks and he puts it back a few days later there won't be an oxide layer yet. THere will be an oxide layer thick enough to cause a poor bond in less than a second after the part breaks again. -- ------------------------------------------------------------------------------ William R Watt National Capital FreeNet Ottawa's free community network homepage: www.ncf.ca/~ag384/top.htm warning: non-FreeNet email must have "notspam" in subject or it's returned -- “No battle plan survives first contact with the enemy” Sun Tzu |
#3
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Anybody tried glueing cast aluminum parts together with epoxy?
"William R. Watt" wrote in message
... THe issue with aluminum is that the bond is usually to the oxide layer that forms rather than to the aluminum itself. Some folks have had good luck with epoxy and some form of "brillo" type pad or sandpaper to break this layer so that the epoxy can bond to the aluminum. With a cast part, you might get enough"tooth" to make 5200 work. If it breaks and he puts it back a few days later there won't be an oxide layer yet. Aluminum oxide forms within minutes.... Meindert |
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