: Thanks for the replies lads. It seems that my brilliant idea does not appear
: so brilliant :-( It does still have some merit, because my wife said she
: would help if I made a clean and easy system to use and she likes this
: one. :-)
: John

Did you happen to mention to her that she might have to clean out each of those oily bottles several times, with lots of very hot water and detergent in order to remove every last trace of oil so none would contaminate your epoxy? Or did you volunteer to do this messy job yourself?

Just wondering.

PGJ

p.s. mention measuring in disposable translucent plastic cups as an alternative. She might prefer this. Make a "master" by marking one cup in the appropriate places. Stack a clean cup inside the "master" and use a marking pen to transfer lines to the clean cup.

To get the right lines on your master cup, use a kitchen measuring cup and tap water (clean and cheap!) to measure out 2 ounces, and pour those two ounces into a clean cup. Now stack that partially filled cup inside another cup and use a permanent marking pen to draw a line on the outer cup at the level of the liquid. Remove the inner cup and dump out the water. Take the outer cup ( the one you marked) and use a sharp knife or a scissors to cut out a portion adjacent ot the line you marked on it. This becomes your master cup.

Anytime you need to mix materials, drop a clean cup inside this master cup, transfer the line onto that cup by marking through the hole you cut in the master cup, and you have a calibrated measuring cup. If your resin is mixed 1:1, use two marked cups - one for hardener, and the other for resin. If your mixing ratio is something else, say 3:1, then you can either use 4 separate cups (three with one material and the fourth with the other)

Or, if that seems a waste of cups, just make another master cup that holds three times the first one. Make it the same way with water and a kitchen measuring cup, but double check this by pouring out the water into one of your other calibrated cups. If you want 3:1, then you should have exactly enough fluid in the larger one to exactly equal three of the smaller ones.