How to Apply Machine Plaster? Step-by-Step Application Guide

Machine plaster is a modern plaster application method that saves time and labor costs in the construction industry. It is especially preferred for large-scale projects because it provides fast and homogeneous coverage. So, how is machine plaster applied? What materials are required? Here is a detailed guide...

What Is Machine Plaster?

Machine plaster is a type of plaster applied using specialized plastering machines by spraying ready-mixed cement-based or gypsum-based dry mixtures onto the surface. Compared to traditional hand-applied plaster, it can be applied much faster and with a lower margin of error.

How Is Machine Plaster Applied?

1. Surface Preparation

• The surface to be treated should be cleaned, and substances such as dust, dirt, and oil that may prevent adhesion should be removed.
• Using a primer is recommended on absorbent surfaces.
• If the surface is not sufficiently level, the elevation should be adjusted using a screed.

2. Material Preparation

• The machine plaster bag (cement-based or gypsum-based) is loaded into the plastering machine.
• The machine automatically adjusts the mixture with water to achieve a homogeneous consistency.
• The required water ratio and application time may vary depending on the product brand.

3. Plaster Application

• The mixture is sprayed onto the surface through a hose.
• The application thickness should be at least 1 cm and no more than 3 cm.
• After the wall is completely covered, the surface is leveled using a screed (an aluminum screed is used).

4. Surface Smoothing and Finishing

• After the plaster has partially dried, it is smoothed with a trowel.
• At the final stage, the surface is moistened and finished with a sponge float.
• If necessary, a thin finishing plaster can be applied afterward.

Advantages of Machine Plaster

? Fast application

? Homogeneous surface finish

? Reduced labor costs

? Fewer errors and cracks

? Efficient results on large surfaces

Frequently Asked Questions

Which surfaces can machine plaster be applied to?
It can be easily applied to surfaces such as brick, concrete, concrete blocks, and aerated concrete.

Should machine plaster be gypsum-based or cement-based?
Gypsum plaster is generally preferred for interior spaces, while cement-based plaster is preferred for exterior surfaces.

How long does it take to dry?
Cement-based plaster generally dries completely within 3–7 days. The drying time may vary depending on weather conditions.