Machine Plaster vs Decorative Plaster: Differences and Correct Use

Machine plaster and decorative plaster are two different products that are often confused. One is used to level and prepare the surface, the other to create the final appearance. This article compares the two and summarises correct use.

What is machine plaster for?

Machine plaster is a mortar applied quickly and uniformly with a plastering machine, turning the surface into a smooth base. It creates a sound, even substrate on walls and ceilings before paint, cladding or a decorative coat. Its biggest advantage is saving labour and time on site.

When is decorative plaster used?

Decorative plaster is a finish that defines the final look, adding texture and aesthetics. It is preferred for interior accent walls and to give character to facades. It is usually applied over a smooth, prepared substrate.

Which plaster on which surface?

• Rough, uneven wall: level the surface first with machine plaster.
• Before paint/cladding: machine plaster creates a suitable base.
• Aesthetic, textured finish: decorative plaster is preferred.
• Facade character: texture and colour are achieved with a suitable decorative plaster.

Application tips

For both plaster types the surface must be clean, load-bearing and properly primed. Following the mix ratio and waiting times prevents cracking and adhesion problems. In decorative plaster, the application technique (trowel, roller, sponge) matters for the desired texture.

To find the right plaster for your project, review Datex MKS5050 machine plaster and Datex DS117 decorative plaster and get support from the Datex team.