Hi All,
 
Have any of you used Epic Resins S7144A 2-part polyurethane potting material?
 
I tried to last week, and pretty much made a mess. Followed the datasheet and mixed it in the volume ratio of 3-parts part-A (300-cc) to 1-part part-B (100-cc). I mixed more material than I actually needed. I'm mixing it by hand because we don't have a MMD system. 
 
I thought I had mixed everything thoroughly (4-5 minutes). I determined ahead of time how much material would be needed for each unit (35-cc's). After mixing, I drew the material into a 60-cc syringe and dispensed 35-cc into each case. I let it room cure (24-30 hours).
 
I did 4-units and each one of them had a different result, from swelling and bubbling of the material completely out of the case, to little or no cure. I'm at a loss as to why that happened.
 
Just wondering if any of you have ever used the material and can give me some pointers.
 
Thanks guys,
 
Steve

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