A feather edge is a finishing tool, and so the application of the product (plaster) should be carried out according to the guidelines or instructions before using the tool.
Method
Different people prefer different methods for using their feather edge. It is often recommended to flick small amounts of water on to the product before using the feather edge. The basics are pretty similar but there are different opinions on how the tool should be moved. Here is a basic method, but be aware that it takes a lot of practice and hard work to get it right.
Step 1 – Grip feather edge
The thinner edge of the tool will be in contact with the surface to be smoothed, so grip around the thicker edge with both hands, at a comfortable distance apart.
Step 2 – Place feather edge
The feather edge is held horizontally or vertically at a very acute angle to the surface to be smoothed: around ten to twenty degrees.
Step 3 – Move feather edge
Sweep the feather edge in long motions across the surface with firm, even pressure. It is advised to make sweeps up or down and not diagonally for best results.
Step 4 – Repeat
Begin in the corners of a room or building and repeat sweeps across the surface until the whole area is smooth.