Tim Lamb wrote:
In message , The Medway
Handyman writes
Ian Stirling wrote:
wrote:
Need a bit if help choosing the best kind of araldite to use!
If I'm correct the standard 5-min isn't the strongest. Does it follow
the slower drying ones (eg 30 min) set to stronger bonds?
All else being equal, yes.
Generally the longer the setting time the stronger the bond. A single
part
polyurethane might be easier, like Gorilla Glue.
You can accelerate Araldite curing time by applying a modest level of
heat. What it does to bond strength is beyond my knowledge.
modest? We used to cure 24 hour alardite in ten minutes with a
hairdryer when it first came out (1963?) . It went translucent and dark
brown, and was MUCH stronger.
I use epoxy a lot in model making, and always try to get some heat into
it to get it runnier. It seems that if you don;t heat to cure, sometimes
its prone to soften under heat anyway. No idea why..
Aircraft skins that are epoxy bonded use a lot of heat in the cure.
regards