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Chemicals / Plasters
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Portland Cement.
Portland Cement.
Price:
$18.00
Item Number:
PCEMENT
Quantity:
94 pound bag
For Casting (to yield 3 cu. ft. of casting material) mix 1 bag Portland cement with 2 bags of Mason Sand - Add 3.5 to 4 Gallons of water.
Test for desired results.
Allow for shrinkage
For casting into gypsums, use mineral oil as a separator.
For Sculpting: ass approximately 3 gallons of water to 1 - 94# bag of cement to make a putty type material called "neat" cement. Let it set about 1 hour to preshrink: remix adding more water if needed.
test
Can also be used as a glaze ingredient.