|
Calculating Product Usage
Formula
for calculating Rectangles and Squares
|
Amount of RTV Moldmaking
Silicone
needed to make a mold |
Measure
Mold Cubic Inches:
Length X Width X Height
If your mold is 10" X 6" X 2" =
120" cubic ins
Measure Your Part
Your Part is 9" X 5" X 1.5" =
67.5
cubic ins |
| Take your
mold cubic inches |
120"
cu in |
| Less your
part cubic inches |
- 67.5cu in |
|
This gives you |
52.5
cu in |
There are
approx 21 grams per cubic inch
(453 grams
per 1 lb) |
x 21 grams |
|
Total: |
1,102.5 grams of RTV needed |
| divide by
grams per lb |
div
by 453 grams per lb |
| silicone
needed |
2.44 lbs |
|
2.44 lbs silicone needed
|
|
Amount of Polyurethane
Casting
RESIN needed to cast a part |
Measure Your Part:
Your Part is 4" X 5" X 3" =
60
cubic ins |
|
Take your mold cubic inches |
60
cu in |
|
There is approximately .550 ounces in one
cubic inch of MPK-70 casting Resin
|
x .550
ounces |
|
Total: |
33
oz of material |
|
33 oz resin needed
|
|
