judy motzkin on wed 26 jul 00
I hope this comes through readably...
>
> this is a good table to have on hand, although i must
> admit that for most of my plaster needs, I use the
> visual method...I don't recall the source of this
> table.
WATER TO PLASTER RATIOS AT A CONSISTENCY OF 73
The following table of various volumes of watr and
> corresponding plaster weights, is based on plasters
> which work well as slip casting molds at a consistency
> of 73, especially USG No1 Pottery plaster. Use
> recommended soaking and mixing times, and 70 degree F
> water for best results. (mixing quantities smaller than
> 2 quarts is not recommended).
WATER PLASTER (grams)
½ pint 11 oz. (or 312 gr.)
1 pt 1lb. 6oz (624gr)
1 qt 2lb. 12oz (1248gr)
1 ½ qt 4 lb. 2 oz. (1972 gr)
2 qt 5 lb 8 oz (2497 gr)
2 ½ qts 6 lb 14 oz (3021)
3 qts 8 lb 4 oz (3744)
3 ½ qts 9 lb 10 oz (4388)
1 gal 11 lb (4992)
1 ½ gal 16 lb 8 oz (7488)
2 gal 22 lbs (9984)
2 ½ gal 27 lbs (12,480)
3 gal 33 lbs (14,976)
>
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