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| Question about epoxy cure time... http://w-ww.luthiersforum.com/forum/viewtopic.php?f=10102&t=2087 |
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| Author: | John Elshaw [ Fri Jun 03, 2005 3:57 am ] |
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When mixing a 2-part epoxy, what happens if you don't put enough hardener in? Will the result be a slower curing epoxy (ie, more work time), will the epoxy just not harden properly at all, or will it be weaker? Any idea? Thanks! John |
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| Author: | Michael Dale Payne [ Fri Jun 03, 2005 4:05 am ] |
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[QUOTE=John Elshaw] When mixing a 2-part epoxy, what happens if you don't put enough hardener in? Will the result be a slower curing epoxy (ie, more work time), will the epoxy just not harden properly at all, or will it be weaker? Any idea? Thanks! John[/QUOTE] Softer and weaker tensile and sheer strength. Put to much and it is more brittel |
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| Author: | Michael Dale Payne [ Fri Jun 03, 2005 4:16 am ] |
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Depending on how short you were on the hardener the epoxy will cure but a bit softer. if you were more than 20% short the epoxy may not cure to a hard film but rather be a jell. firm to the touch but some what plyable. More than 30% short it may not cure. It is better to thin by means of a solvent that will gas off to thin and extend pot life. |
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