I’ve finished the plastering and the blue color is beautiful against the brick wall (see part 1 for an inexpensive DIY venetian plaster recipe). The complementary color makes the brick pop. The final step is the coating that you put over the plaster. When you see photos of venetian plaster walls, you often see walls that are very shiny – Vegas looking. I don’t like that look. I apply a top coat to my plaster using one very simple ingredient – Ivory soap. I’ve never tried this with any other brand of soap. I’ve not felt the need to experiment because it works so perfectly. The Ivory soap does not change the color of the plaster and it lasts. I have venetian plaster walls in my home that are twelve years old and the soap finish looks like it was put on yesterday. Here is how to do it yourself:
Soak a bar or two of Ivory soap overnight.
Put the soap with some of the water into a food processor and blend it (adding water if needed) until it is the consistency of whipped cream.
The whipped soap should be thick and not runny or watery. Apply it with a small spatula as if it were a wax.
The soap coating brings out the luster of the plaster and the layers of color.
When it drys, it gives the plaster a silky matte finish. A beautiful luster.