Saturday, December 26, 2009

How to Prepare a Mixture of Plaster


The cast, which is calcium sulfate which is dehydrated and pulverized in a special procedure is used in wall coverings, among other uses. Good preparation is the same key so that the result is good. With inadequate preparation once placed can break, leading to having to remove it.

The density of the mixture varies according to type of cast that we get. The less dense, it takes a liter and a quarter of powder per liter of water, and the densest dust takes two liters of water per liter. The normal use is made by mixing a quart and three quarters of powder in a liter of water.

The mixture must be done in a particularly clean container. When we have two elements together, we wrap gentle movements until smooth. Let rest a few minutes, until slightly increases the volume and temperature. Since it can take. We must not reuse chunks of plaster that has been dried, which is called cast dead.

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