Though I was sending this out to everyone, but looks like it just went to Ian.
Though the rest of you might like to know what we're using to weigh out epoxy.
Bill
From: William R. Henderson, 103237,3434
DATE: 12/9/95 2:15 PM
RE: Copy of: Re: Small quantity weighing
Here in Atlanta, Georgia all the builders purchased a low cost digital scale to
weigh our epoxy. I purchased a Sunbeam food scale for arount $60 US and it has
an accuracy of 1/10 gram. I much prefer this over the homemade scale in the
tail kit manual and from what I've heard about the automatic dispensers the
type of epoxy we are using doesn't work well with them. Also, the instructor in
a composite building class I went to said you have to be carefull as the resin
or hardner will build up in the tubes and change the mixing ratios.
I also created a spread sheet for a quick reference to mixing amounts from 5 to
250 grams in 5 gram increments. It has columns for resin, hardner, and total
grams of mix. It's handy to use with the scales. You simply decide how much
epoxy you need ( I wouldn't suggest mixing less than 25 g.), put a mixing cup on
the scale, turn the scale on(this will zero the scale - takes into account the
weight of the cup), pour in the amount or resin you need from the spread sheet,
then pour in the hardner until the scale reads the total. Couldn't be easier,
and I feel it's more accurate than some of the other methods.
Bill Henderson
Atlanta
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