Plastering is both a craft and a skill that demands precision and the right tools. Whether you’re applying a fresh coat of plaster or fixing up a worn-out surface, using the appropriate tools can make all the difference.
Over the years, I’ve learned that choosing the right tool for the job can ensure flawless finishes and a smoother plastering process. In this guide, we will walk you through the essential plastering tools, their uses, and tips for getting the best results from each one.
Essential Hand Tools for Plaster Application
The cornerstone of any plastering job starts with the hand tools you use. These tools allow you to apply, smooth, and shape the plaster precisely as needed. From trowels to corner trowels, let’s explore these essential hand tools.
Trowels: The Heart of Plastering
The trowel is the most crucial tool in your plastering kit. It’s the equivalent of a painter’s brush—a staple tool that shapes and smooths plaster into a perfect finish. But not all trowels are the same, and using the right one for the job is essential to achieving a smooth, flawless surface.
| Trowel Type | Purpose | Pro Tip |
| Finishing Trowel | Used for the final smoothing process, removing imperfections and ensuring a glass-like finish. | A medium-sized trowel is perfect for speed and precision. |
| Standard Plastering Trowel | Ideal for applying the first coat of plaster, offering a sturdy grip for the base layer. | It’s heavier, making it perfect for pushing plaster onto the surface. |
| Flexible Trowel (Flexi Trowel) | Lightweight and used for the final smooth finish without wrist strain. | Don’t use for the initial layers—use only for finishing touches. |
| Corner Trowel | Designed to smooth out plaster in corners and tricky angles. | Wait for plaster to firm up before using it for the best result. |
| Pointing Trowel | Smaller and perfect for fine-tuning edges and corners. | Use for detailed work when you need absolute precision. |
- Finishing Trowel:
- Best for removing imperfections and smoothing out any lines that remain after the plaster has started to set.
- Use it for the final smoothing touches before the plaster completely hardens.
- Standard Plastering Trowel:
- Heavier and sturdier, ideal for applying the first coat of plaster.
- It can push plaster onto the surface more forcefully, ensuring it stays in place during the first application.
- Flexible Trowel:
- Designed for the final stage, it provides a lightweight and flexible feel that reduces strain on your wrist.
- Ideal for smoothing out any slight imperfections that remain after using a standard trowel.
Transport and Spreading Tools: Managing the Plaster Mix
Once you have the trowels sorted, it’s time to look at tools designed to manage the plaster mix itself. These tools help in the transportation and spreading of plaster, ensuring a steady flow of material onto your walls and ceilings.
| Tool | Purpose | Pro Tip |
| Plasterer’s Hawk | A flat board used to hold the plaster while applying it. | Hold it at a 45-degree angle for better control and efficiency. |
| Plaster Float | Used for smoothing and evening out plaster once it starts setting. | Essential for closing out imperfections and trowel marks. |
| Sponge Float | Helps in smoothing out finer details and removing trowel marks from the surface. | Perfect for gypsum plasters but don’t press too hard or it will create texture. |
| Plastic Float | Used for silicone renders, this float helps in achieving a smooth surface texture. | Use light, circular motions for an even finish. |
- Plasterer’s Hawk:
- Used to hold the plaster mix as you work.
- Allows for quick, efficient application without returning to the mixing bucket.
- The hawk keeps the plaster in place and within easy reach for smoother application.
- Plaster Float:
- After applying plaster, use this tool to smooth out the surface and remove any lines left by the trowel.
- Available in various materials like rubber or metal, depending on the type of finish you’re aiming for.
- Sponge Float:
- A softer float, great for fine-tuning surfaces and eliminating small imperfections like trowel marks.
- Works best when used on gypsum-based plasters.
- A light touch is key—avoid pressing too hard.
Levelling and Straightening Tools: Perfecting the Plaster
Achieving a level and straight surface is the ultimate goal in plastering. After applying the plaster, you need to make sure it’s perfectly flat. These tools are designed to correct any uneven spots and ensure the wall is smooth and even.
The Plasterer’s Darby: Smoothing Out Large Surfaces
The plasterer’s darby is a long, flat tool typically around 1.5 metres in length. It’s perfect for levelling out larger areas of plaster quickly, ensuring no high spots remain. I vividly remember the first time I used a darby—after applying a base coat to a large wall, I realised I had missed some spots that needed levelling. With the darby, I was able to smooth those imperfections out with ease.
| Tool | Purpose | Pro Tip |
| Plasterer’s Darby | Used to level large plaster areas, smoothing out any bumps or low spots. | Keep the darby level while you work to avoid uneven surfaces. |
Straight Edges: Ensuring Flatness
A straight edge is an absolute must for achieving a level surface. It’s used for checking the consistency of your plaster’s thickness and for correcting any minor imperfections. A straight edge is especially helpful in finishing off your plaster, making sure everything is level and uniform.
| Tool | Purpose | Pro Tip |
| Straight Edge | Used to level plaster by checking for any unwanted peaks or dips. | Combine with a spirit level for ultimate precision in every layer. |
- Straight Edge:
- Ensures your plaster is applied evenly, with consistent thickness across the entire surface.
- It’s a quick check for any areas that might need a little extra attention.
Specialised Plastering Tools for Fine Detail
Not all plastering jobs are straightforward. Some require extra precision and attention to detail. For those tricky spots and specific needs, these specialised tools are your best friends.
Feather Edge: Getting the Joints Just Right
When you’re working with plasterboard or render, a feather edge is an indispensable tool. It’s a long, serrated tool typically around 1.8 metres or longer. The feather edge is used to smooth out the finish and identify any hollow spots between plasterboard joints, ensuring the plaster adheres properly.
| Tool | Purpose | Pro Tip |
| Feather Edge | Used to smooth out render and plasterboard joints, identifying hollow spots. | Always go over the surface with a trowel after using the feather edge. |
Squeegee Trowels: Speed and Efficiency for Large Areas
For those large projects where speed is key, the squeegee trowel is a game-changer. With its long, flat edge, it allows you to cover large areas of plaster quickly while ensuring a smooth finish. I used a squeegee trowel for a large office refurbishment, and it saved me hours of time while delivering excellent results.
| Tool | Purpose | Pro Tip |
| Squeegee Trowel | Perfect for quickly smoothing large areas of plaster without leaving marks. | Use long, steady strokes for optimal results across large surfaces. |
Maintaining Plastering Tools: Extending Their Life and Effectiveness
Now that you know which tools to use, let’s talk about how to keep them in top shape. Well-maintained tools last longer and perform better, ensuring you get the best results every time.
Cleaning and Caring for Trowels and Floats
Cleaning your tools after every job is vital. Plaster can harden quickly, and if left on your tools, it can cause damage. For years, I’ve followed the simple rule of “clean as you go.” It saves me time in the long run and ensures my tools work efficiently every time.
- After each job, wash your trowels and floats with warm water to remove plaster.
- Dry them immediately to avoid rust.
- Apply a thin layer of oil to prevent rust buildup.
Storage Tips for Longevity
When it comes to storing your tools, keep them in a clean, dry place. A damp environment can cause rust, while leaving them exposed to sunlight can warp them over time. Store your trowels, floats, and other tools in a toolbox or on a wall rack to keep them safe and easily accessible.
As I’ve learned over the years, plastering is as much about the tools you use as it is about the technique. With the right tools, you can achieve a smooth, professional finish every time. From the trusty trowel to the specialised corner trowel, and from the plastering hawk to the darby, each tool serves a unique purpose. And just like any craft, the more you practise with the right tools, the better your results will be.
