Turbo primer mixing by weight

yep , i dont mix in them just use them to measure . the plastic drinking cups are secure enough to put reducer in . i got started using the waxed cup doing stripping and lettering . they work good for resin mix .
 
There are times when mixing 1oz of primer is more than I need, and there is no way of accurately mixing 1oz or less without a scale. Restoration work it's not always necessary, but one small scratch, chip, or dent, why would I mix 3-6ozs and throw away 75% or more? That is one reason I still keep P30 primer on my mixing bank, I can mix .2oz if I want to, accurately.
 
yep , i dont mix in them just use them to measure . the plastic drinking cups are secure enough to put reducer in . i got started using the waxed cup doing stripping and lettering . they work good for resin mix .

You just lose me at waxed. Too hard for me to believe some of it is not coming out.

I am just a little confused Barry has not chimed in. Maybe he said it before, I dont know. Maybe he would say we make this to be used by volume not weight. I know he explained free hardener with the epoxy because he fills to weight not volume, so there has to be some reason.
I still say take like cups, pour out equal amounts and weight them and I am pretty sure you will get to the 1:.7 weight area that was suggested. I just dont know which of us are over thinking this.
 
i can mix a 1/2 oz of epoxy with the small cups. but i also dont get upset at throwing away an oz of it .
 
texasking is looking at it from moree of a collision repair/ general repairs type angle. Lots of smaller jobs throwing away several ounces each time starts to add up. I get it. I used to do it all the time as it really saved materials. When I have access to a mixing scale again I'll go back to doing it.

Back to the original question, if a scale is available then figuring out the weight is not that hard. I think Barry doesn't make it known because of the headaches it would bring him from many people's fundamental lack of understanding of ratios versus weight. Like what Texas posted earlier. Every Shop I've been at it was a fairly common thing that several guys couldn't even understand the mixing cups and would constantly screw up when mixing primer. Even worked at a place where a fellow Painter really had no understanding at all of ratios. Guess that's what happens when you never pay attention in School and drop out in the 10th grade.:eek:
 
I figured out the ratios for Euro on my own by weighing while mixing a large amount by volume in a 1 liter glass beaker, then putting the results into a speadsheet.
 
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