Gypsum Cement Plaster Mix Guide

							USG Industrial Products
Gypsum Cement & Plaster Volume and Mix Guide
 Square     Side (Inches)                                                                  Cubic Feet


 Cylinder   Diameter (In)             Length/Height (In)                                   Cubic Feet

 Sphere     Diameter (In)                                                                  Cubic Feet

Rectangle    Length (In)                  Width (In)                 Height (In)           Cubic Feet

To Calculate Plaster Requirement:

     Enter Cubic Feet                 Enter Consistency                  Lbs. of Plaster      0.0
To compare water to plaster ratio:   Enter Consistency               Lbs. of Plaster
Water Requirement:

      Lbs. of Plaster        0.0          Consistency         0          Lbs. of Water        0.0
                To compare water to plaster ratio-                  Lbs. of Water             0.0

Directions: Determine the geometric shape and enter the dimension(s) to find Cubic Feet.
Enter Cubic Feet calculation and recommended consistency from properties chart to find
Plaster Requirement . Find Water Requirement. Or to compare water to plaster ratio,
enter consistency and Lbs. of Plaster. Results are in blue.
Before mixing, add plaster to the water and soak per recommendations.
                                   Properties at Selected Consistency
                     Recommended                                           Density    Density




                                                                 Plaster
             Use                    Plaster per                                                  % Void Vol.




                                                  Water

                                                          =100
0.00   Consistency     Product      lb. water                              Wet Lb./   Dry Lb./        Total
                                     Lb.-Oz.                               Cu. Ft.    Cu. Ft.       Absorption


0.00                    #N/A         #N/A         #N/A           ####       #N/A       #N/A           #N/A

0.00

0.00
      =>           Use                Product
Compressive     Consistency


 Dry Strength
                  160

     #N/A        145                Metal Casting
                 133
                 123
                 114
                 107
                 100                 Hydroperm®
                  94
                  89
                  84
                  80
                  76
                  73          #1 Moulding, #1 Casting
                  70           #1 Pottery, White Art®
                  67
                  64              Puritan® Pottery
                 61.5
                  60                  Duramold®
                  59
                  57
                  55
                  53
                 51.7
                  50                     Tuf Cal®
                  49
                  47
                 45.7         Hydrocal® White. B - Base
                  42            Hydrocal® A-11, B-11
                  40             Statuary, Ceramical®, C- Base

                  38                 Ultracal® 30
                  37
                 33.3                Hydrostone®
                  32                  Tuf Stone®
                  30
                  28
                  24
                  21            Hydrostone® Super X
                  20                Drystone®