stucco mystery

Old 11-27-07, 08:39 AM
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stucco mystery

I'm about to do some stucco around a new door on my 50 y/o CBS home. I see guys in the area buying bags of stucco and then adding either sand, or portland to supposedly premixed stucco bags. What exactly is the recipe for mixing stucco? is the sand for the surface finish? does the portland aid adhesion or holding when wet?
Old 11-27-07, 07:22 PM
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"Stucco" is a technique, not a product. There are many ways to make stucco and many bagged variations. The most basic is portland cement, often mixed with masonry cement and sand. Then there are concentrates, requiring only sand, and lastly, pre-mixed stucco, requiring only water.

Generally, as the convience goes up, so does the price. The cheapest way to make a good stucco is 1 part portland, 1/2 part masonry cement, combined with 3 parts sand, by volume, of the cementious materials. Concentrates are next, then ready-mixed stucco, usually only used for the finish coat.

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