aviator_edb Posted October 23, 2009 Share Posted October 23, 2009 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? Quote Link to comment Share on other sites More sharing options...
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