Construction - Construction materials - Putties and adhesives - Plaster putty

Plaster putties are building materials used to level the surface of walls and ceilings, repair minor defects and prepare them before painting or wallpapering. They provide a smooth and even surface, which improves the quality of the final finish. Plaster putties can be of various compositions - gypsum, cement or polymer based, and are selected depending on the application and operating conditions.

Gypsum-based putties are the most popular for interior decoration, as they provide easy processing, quick hardening and a smooth result. They are suitable for dry rooms and are widely used for sanding walls and ceilings before painting. Cement-based putties are more durable and suitable for wet rooms and outdoor work, as they are moisture resistant and provide good mechanical strength. Polymer putties offer high elasticity and adhesion to various surfaces, therefore they are used in both repair and new construction finishing.

Plaster putties can be of different types – leveling, finishing and universal. Leveling putties are used for larger irregularities and cracks, finishing putties provide an especially fine and smooth surface, while universal putties combine the properties of both types and are suitable for various finishing works.

To obtain a quality result, proper surface preparation is important – it must be clean, dry and dust-free. The putty is applied with a spatula or trowel, evenly leveling, and after hardening, if necessary, the surface is sanded to achieve perfect smoothness.

How do gypsum, cement and polymer-based putties differ?

Can plaster putty be used in wet rooms?

How to properly prepare the surface before puttying?

How many layers do you need to apply to get a smooth surface?

Should the surface be polished or coated with a primer after puttying?

What are the most common mistakes when plastering walls and ceilings?