There is a lot of confusion when it comes to mixing any kind of stucco, but we will be discussing the base coat mix in this article. I will use a custom recipe that will work for most applications and include how to mix in a bucket, wheel barrow and a mixer, which all require a little different techniques.
The mixing ratio of stucco is to use at least 3 cubic feet of plaster per bag of cement for the scratch coat and a maximum of 5 cubic feet per bag of cement for the brown coat. Water is added to the mixture as needed. The scratch coat is added first and is the thickest of the coats, normally around 1/2 inch. The brown coat is then added ...
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Re: Stucco home made formula Tom: Lumber yards and hardware stores carry a product called Mixquick (ther are also other brand names). It is already formulated for you. It comes in 90 pound sacks as I remember. They make several different mixes so be sure you get "stucco mix" and not something else like "mortar mix".
The stucco scratch coat mix is a simple recipe that really consists of sand, cement and water. There are other formulas that you can use but in its simplest form it is merely a 3 to 1 ratio of sand to cement.
To make stucco for scratch coat, mix Portland cement, hydrated lime and sand. Mix the ingredients in a 5-gallon bucket or wheelbarrow with a hoe or other heavy pole, adding water until the slurry has the consistency of pudding. To add tooth, you can also mix a dash coat of sand, Portland cement and water to improve bonding with the stucco.
Stucco is a common building material used to finish walls and ceilings. If you are attempting to stucco a surface by yourself, however, you need to know the proper quantity to mix a durable stucco batch for the amount of surface that you will be covering.
If the mix becomes stiff, add more water until you get a more plastic, fluid mix. Excessive amounts of either hydrated lime or sand will weaken the mix, and while increasing the ratio of cement used will cause the finished stucco to have greater strength, it will also be susceptible to shrinkage and cracking.
will heat the mixing water to 130-140 degrees F (54-60 degrees C) and mix with cold (but not frozen) sand. This creates a workable stucco mixture in the 70-100 degrees F (21-38 degrees C) range which also lets the stucco resist freezing. It should be noted that the addition of small air bubbles into the stucco mix (called