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Noob Pump Question


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Ok, so I'm trying out a new Michael Eng variable ratio epoxy pump. I'm using MGS 285 and slow hardener. It supposed to be 100:50 by volume and 100:40 by weight so I set the epoxy pump up for that volume ratio. (Actually, it came set for 2:1 but I double checked it.)


Here's my question. After priming the pump I went to test the ratio by weight. Using a fairly accurate scale I come to 100:43 by weight. I'm a little rich with the hardener. Do I need to get it closer to 100:43 or should I quit worrying and build some airplane parts?

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Weeellll... MGS 285 product sheet says 100:40 +/- 2. I guess if you're at ease with your cardiologist saying "that's close enough..." ;)


PDF attached, it may not be the most current.




Rick Hall; MK-IV plans #1477; cozy.zggtr.org

Build status: 1-7, bits of 8-9, 10, 14 done! Working on engine/prop/avionics.
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