plaster weld on red devil one time spackle

Welding Plaster: Tips for a Smooth Finish

As a DIY enthusiast, I recently embarked on a plaster wall repair project in my newly acquired 170-year-old farmhouse. The walls were in dire need of TLC, with rough gray skim coats covering most of the surface and deep voids along window trim. I've been experimenting with various techniques to achieve a smooth finish, but have encountered some challenges along the way.

Recently, I watched an episode of 'Ask This Old House' where they mixed water into joint compound from a bucket and spread it with a wide knife. While this technique caught my attention, I'm not sure if I would use it for my project. My experience with plaster is limited, and I've been struggling to achieve a smooth finish.

I've tried using various compounds, including Easy Sand, Durabond, and Plus 3, but have encountered issues with adhesion and sanding. The walls are quite soft, making it difficult to achieve a consistent thickness with the Plus 3. I've also experimented with spreading it with a roller, which seems like a promising technique.

One of my main concerns is whether the plaster will be firmer after priming and painting. The wall is quite smooth where I sand, but it's also incredibly soft. I've tried using a 9' foam rubber sanding block and vacuum hose to catch dust, but this method has left gouges and lines.

In addition to the challenges with adhesion and sanding, I'm concerned about the durability of my repairs. Will they hold up over time, or will they crack and crumble? I've been reading about Dino mix (D-mix) and am considering experimenting with it. The idea of spreading it with a roller is appealing, as it might help me achieve a smoother finish.

If you have any advice or tips on how to successfully repair plaster walls, I would greatly appreciate your input. Are there any specific techniques or products that you recommend? How can I ensure a smooth finish and durable repairs?

Plaster weld on red devil one time spackle