How to Apply Finishing Plaster Part 3 How to Apply Finishing Plaster Part 3
Welcome back and let’s now finish the job of finishing plaster that we are supposed to finish. Let us now do the last few touches in the finishing plaster to create a great wall. A great wall should be something that is sturdy and smooth. Before we begin the process of applying the finishing plaster, review first the two types of the most common walls, a gypsum board wall and a plaster wall. A gypsum board wall is a very weak wall that is prone to easy breakage or hole formation if something crashes into it. However, a plaster wall is a very strong and sturdy wall that is resistant to damage unless you really want to break it down for another renovation.
Step 1 – Prepare the Working Wall
Put the finishing touches for the plaster board. Prepare the wall by applying a plaster coating on a metal screen lath first. Then, apply a second coat and smooth this out for the painting job. Next, secure the wall by removing any crumbled former plaster in the area. Be sure that you have set the first coating of plaster dry. The metal lath has been clearly covered well by the first plaster coat.
Step 2 – Make Finishing Plaster
To make finishing plaster, you will need 1 part water, 1 part gauge plaster and 3 pats lime (hydrated). Pour about 2/3 water into the bucket and add the lime and mix it well until it has become creamy. Be sure that there are no lumps present as this can quickly dry and apply it really fast. Make sure you have someone to help you create a good mixture if you need to use more since you cannot stop to make another more.
Step 3 – Mix Finishing Plaster Well
With a clean trowel, put some of the creamy mixture onto the clean plywood. Pulverize any lumpy parts with your trowel. Make a cone shape with a hole in the center of your mixture on the plywood. Add the remaining water in the hole at the center. Sift the plaster into the hole with water which will quickly absorb the plaster. Do not stir it yet and let rest for a while. Then, mix center with your trowel to completely combine all the plaster ingredients together. Make sure that the mixture is thoroughly smooth without any hard lumps as this mixture will dry out fast.
Step 4 – Apply Finishing Plaster on the Wall
From the wall’s top where you will apply your plaster, spread the newly mixed plaster on top of the first coating. Quickly work with a sweeping motion. Do not work back and forth. Use only a one directional sweeping motion when you do the application of the second coating. Spread some of the plaster over the edge of the area on the connecting or surrounding wall to create an even continuous look. Work fast and efficiently as the plaster dries off quickly. Be sure to have an assistant to mix more of the plaster ingredients in clean plywood to provide you with more plaster as you continue to work on.
Step 4 – Put on the Finishing Touches
With a wet paintbrush, alternate it with a trowel to smoothen the wall’s surface to have it flush with surrounding wall. Lightly spray some water and brush it off to finish the plastering. Once this has dried smoothly, prime it with your choice of primer and paint it with your favorite color or something that will match the old wall surrounding your area.