More friction with better Texture
In order to get a professional texture on your volumes you should use some sort of media. To be specific an aggregate medium to fine based media. There are many options you can go with. The biggest thing you are going to want to pay attention to is the size of the grains you use as your aggregate.
Aggregate can be categorized into four different sizes very fine (220 and higher), fine (80 - 180), medium (30 - 80), coarse (8 - 30). The larger the number the smaller the grit is, and vise versa for the smaller the number is the larger the grit is. (These number classifications can vary to a slight degree depending on the source).
Enough with facts about the size classifications. Let’s talk about what matters, size. Medium to fine is where we want to be. Anything smaller becomes to small and loses it feel in the process of paint. Anything larger is too rough and chips away easily. Remember that the smaller the number the larger the grain and the larger the number the larger the number the smaller the grain is.
We recommend using a Aluminum Oxide Blasting media at an 80 to 100 grit. It has been pre-sifted to get all the smaller and larger grains out and leave you with a more consistent product. The reason this particular media is the choice is due to its durable nature. It is among one of the most durable media used for grit. It is an angular grain and when scuffed up it exposes a new angular edge providing for more allowable friction. It is also cheap for its benefits, other materials that are slightly more durable are more expensive.
To apply the aggregate it is best to use a sifter so you can shake the aggregate on to the volume. Our suggestion for a good sifter is a fine mesh sifter. If you snag a sifter just make sure that the mesh is fine to very fine, a medium to course sifter will just dump the aggregate. It can be messy and make the aggregate go much faster than necessary.
Learn how to apply the texture and more by buying the book. Included are plans (dimensions and angles) and all the knowledge you need to make professional volumes for yourself.