Different Types of Plaster

Plastering is the process of coating a wall, ceiling or other surface with thin coats of mortar to form a smooth, durable and protective finish. It is a vital part of many building projects and has been used for centuries to protect masonry surfaces against damage and mould growth.

There are a number of different types of Plastering materials and it is important to know which one will suit your specific project. It is also important to ensure that you use a quality product to ensure longevity of the work.

Traditionally, plastering was carried out on wood lath spaced half an inch or so apart over the studs or ceiling joists. However, there are now some modern methods of applying plaster to walls, which can be more efficient and faster.

Patching and Repair

A patch plaster can be applied to a bare brick wall or plasterboard in order to patch holes and voids. It is often a simpler method of applying plaster than a wet finish as it only requires a skim coat.

The plastering is then left to dry. It is then ready for painting or wallpapering. The finished plaster should be sanded thoroughly to ensure a smooth, uniform finish. This can be a very labour intensive and time consuming process so make sure you have all the equipment you need before starting your job.

Polished plaster, also known as Marmorino, Spatulato or Marble plaster is usually made with a lime putty and natural stone dust. It is a popular choice as it can be polished to a high sheen.

Other forms of plaster are available that have more specialised properties. These can be formulated to help with a range of different tasks, including repairing cracks and holes in ceilings and drywall, modeling and sculpting.

Some plasters can be used on both interior and exterior surfaces, so it is important to select the right type for your project. This can save you a lot of time and money in the long run.

Whether you are a homeowner looking to repair your own plastered walls or you are an artist or craftsman looking for the best material to create your masterpieces, knowing the differences between the various different types of plaster will help you to make the right decision.

Solid gypsum plaster is the most common undercoat plaster and provides good protection against fire and impact. It can be mixed with a variety of aggregates and is suitable for a wide range of applications.

Another undercoat option is a cement render, which combines a gypsum base with a cement-based binding matrix to provide a strong and tough finish. It can be a great choice for older homes as it has been proven to resist deterioration in high temperatures.

It is also a good option for newer properties as it can be painted over and not require a skim coat, saving you time and money.

Lastly, there are some lightweight, setting-type muds that offer quick cure times. These can be useful for a range of different plastering jobs and they are available at most builder’s supply stores and online.