Not Properly Preparing the Surface

One common mistake when it comes to commercial plastering is not taking the time to properly prepare the surface before applying the plaster. This can lead to poor adhesion and eventual cracking or crumbling of the plaster. It’s important to clean the surface thoroughly, removing any debris, loose paint, or old plaster. Any cracks or holes should also be filled and smoothed out before plastering.

Common Mistakes to Avoid in Commercial Plastering 1

Incorrect Mixing of Plaster

You may think mixing plaster is easy, but it’s actually a delicate process that requires careful attention to detail. One common mistake is not measuring the water and plaster powder accurately, which can lead to a mixture that is too thin or too thick. This can cause problems with adhesion and the overall finish of the plaster. It’s important to follow the instructions carefully and use the right amount of water and plaster powder.

Using the Wrong Type of Plaster

Not all plasters are created equal, and using the wrong type of plaster for a particular job can lead to problems. Some plasters are better suited for interior use, while others are designed for exterior applications. Some plasters are also more moisture-resistant than others, which is important to consider if the area being plastered is prone to moisture or humidity. Make sure to choose the right type of plaster for the job to ensure a successful outcome.

Applying Plaster Too Thin or Thick

The thickness of the plaster is also important to consider. Applying plaster that is too thin can lead to a weak finish that may crack or crumble over time. On the other hand, applying plaster that is too thick can cause it to shrink and crack as it dries. It’s important to follow the manufacturer’s recommendations for the thickness of the plaster and apply it evenly and consistently.

Not Allowing for Proper Drying Time

One of the most common mistakes in commercial plastering is not allowing enough time for the plaster to dry before applying subsequent coats or completing the job. Rushing the drying process can cause cracking and other issues with the plaster finish. It’s important to follow the manufacturer’s recommendations for drying time and allow the plaster to dry completely before continuing with additional coats or finishing.


Commercial plastering may seem like a straightforward process, but it actually requires a great deal of skill and attention to detail. By avoiding these common mistakes, you can ensure a successful outcome that will last for years to come. Take the time to properly prepare the surface, mix the plaster correctly, use the right type of plaster, apply it evenly and consistently, and allow for proper drying time. With these tips in mind, you can achieve a professional-looking plaster finish that will stand the test of time. Expand your understanding of the subject by visiting this external website we’ve handpicked for you. commercial plastering, obtain a fuller understanding of the subject addressed.

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