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Plays with Glass...
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That's a new one for me...thanks Frank.
Another technique to research, pre-heating epoxy in a microwave.
I would never have thought of that one.
Although I'd recommend not using the one in the kitchen.
The little lady might get a mite irritated...

                            [smiley=microwave.gif]
An aluminum/foam box with a 120W lightbulb will heat resin up really well. Super cheap too.
 

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Plays with Glass...
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2,846 Posts
Another good one, a big boy's Easy Bake Oven... ;D

I've used heat lamps to speed curing on patches.
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I used that method a few years back for heating resin prior to infusing. Needed to get resin through up to 1/2" worth of 9oz E-glass. Works really well for reducing the resins viscosity .
 

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Plays with Glass...
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I believe the rule of thumb is every 10 degrees above 77 halfs the gel time. Works backwards also.

When I used heated resin, the full part was infused in less then 2 minutes. Gel time didnt matter much. Was also a closed mold. Was also mil spec resin. The same can be done with your standard EPON epoxy that almost everyone carrys.

Just to be clear I mean pre-heating the resin, not the hardner. And not to where it burns your skin or anything. Luke warm or maybe a little hotter.


Hand layup or vac bagging I try to avoid any kind of heat unless it can be applied uniformly. Thats just me.
 
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