10 TYPES OF PLASTERING FINISHES WITH EXTERIOR & INTERIOR PLASTER FINISHES

What Is Finished Plaster?

Plaster Finishing is the next step after the walls have been constructed. Plaster finishing is used to make sure the wall’s top surface is smooth and for aesthetic purposes.

Mortar is used to cover ceilings and walls that have been constructed. This gives you a beautiful and uniform finish. We will discuss the different types of plaster finishing available and their properties in this article.

This article will discuss different types of plaster finishes and their properties.

Types Of Plastering Finishes

Plaster finishes used in building construction are:

• Pebble Dash Plaster Finish
• Scrapped Plaster Finish
• Textured Plaster Finish
• Stucco Plaster Finish
• Exposed Aggregate Plate Finish
• Waterproof Plaster Finish
• Smooth Coat Finish
• Sand Faced Finish
• Spatter Dash Finish or Rough Cast Finish
• Depeter End

1. Pebble Dash Plaster Finish

It’s a Plaster Finish in which small stones or pebbles of the appropriate size are placed on top of a freshly applied mortar. Then they are left exposed.

Mixing cement and coarse sands and making mortar is a common method of preparing the final coat. It is typically applied in a thickness of about 1 mm.

Pebbles for dashing should first be washed well and then thrown onto the final coat. You can tap the pebbles into the mortar using a wooden float or the flat end of a trowel.

This plaster finish has all the benefits of the roughcast finish, and it is recommended for use in similar environments. This plaster is used to cover exterior walls and give the structure an aesthetic appearance.

2. Scrapped Plaster Finish

A scrapped plaster finish can be used in many homes to achieve a nice blend of rough and smooth surfaces. After the plaster has been leveled and allowed to stiffen for some time, the final coat is removed with a scrapped plaster finish.

You can get many types of scrapped finishes by using different tools and in different ways.

The final layer of plaster finishes is typically 6-12 mm thick, with about 3 mm being removed during the scrapping. After the final coat has been set, the scrapping process takes place.

The mortar’s surface skin is removed during scrapping to expose the aggregate. The texture of the aggregate depends on the grading aggregates that were used for the final coat. Plaster finishes are less likely to crack than plain finishes.

3. Textured Plaster Finish

To create a textured interior decor, a textured plaster finish is often used on the boundary walls and part of the feature walls.

Stucco plastering is used to make textured plaster. It has a rough finish but can be smoothed over to create repeating patterns.

Mixing sand and lime, cement, and water to create textured finishes is possible. You can also add fibers and synthetic acrylics, as well as coloring pigments.

This finish can be used to create ornamental finishes or textured surfaces by using various tools on the newly applied final coat. This finish has all the benefits of a rough finish.

4. Stucco Plaster Finish

Stucco plaster is a type that offers a superior finish. This plaster can be used on both inside and outside surfaces.

Plaster is typically applied in three coats, making the total thickness approximately 25mm.

The first coat is called a scratch coat, while the second coat is a finer brown coat. The third coat is called a finishing or white coat.

5. Exposed Aggregate Plaster Finish

Use white and colored marble chips of 6 mm to 12 mm in size. These are obtained from the crushing of hard marble stones.

The thickness of exposed aggregate finish plaster must be 20mm. The application procedure for exposed aggregate finish plaster shall be identical to that used in sand-faced finishes. The mix proportion of cement to marble chips should be equal. Pebbles must be washed well and drained.

Use a strong whipping motion to align the face of your wall with the admixture. The top surface mortar should be washed or brushed with water.

6. Waterproof Plaster Finish

Plastering shall be done with a waterproof cement compound that has been approved by the manufacturer. These compounds must conform to IS 2645.

It is not permitted to use admixtures containing calcium chloride. The material should be in the original packaging when it is brought to the site.

Mix the compound with dry cement in a ratio of 3% or as directed by the manufacturer.

Mixing waterproofing material with cement should be done carefully to ensure that it is well combined and doesn’t separate from the addition of water.

7. Smooth Coat Finish

This plaster finish is smooth and has a level surface. For mortar finishing, sand and cement are used in a ratio of 1 to 3.

A wooden float is used to apply mortar to the wall.

8. Sand Finish Plaster

The plaster finish is typically completed with two coats of mortar mixture. For the first layer of plaster with 12mm thickness, cement sand should be kept at 1:4.

The first layer is applied, then it is cured for seven days. Next comes the second layer, with a thickness of 8mm.

The ratio of cement and sand is maintained at 1:3. After the layer has been wet, a sponge can be used to provide the desired characteristics.

9. Rough Plaster

For rough finishing plaster, a ratio of 1:3 cement sand aggregate is required. This coarse aggregate size ranges from 3mm to 12mm.

The mortar mixture is poured onto the wall, and then the plaster surface is finished with a wood float.

The finished plaster is stronger, more durable, and crack and crazing-proof.

10. Depeter Finish

It’s similar to most last-finishing plaster coats, which have a thickness of approximately 12-15 mm for a high-quality finish.

After the mortar has been applied, the Gravel Plinth materials are manually compressed to the desired degree. You can use Gravel Plinths in different shapes and colors to create a vibrant appearance on the wall.

Wall Plaster Material

You will need to use cement paste to obtain certain characteristics such as heat insulation, aesthetics, durability, and many other properties.

These are the wall plastering materials.

• Acoustic Plaster
• Asbestos Marble Plaster
• Barium Plaster
• Granite Silicone Plaster
• POP, or Gypsum Plaster
• Keene’s Cement Plaster

1. Acoustic Plaster

For surface finishing, gypsum is often required to be added to the mortar mixture. This will prevent the formation of honeycombs. The surface coating is susceptible to chemical reactions that lead to the formation of gas bubbles. This, in turn, causes the formation of small openings on top of the surface, which eventually results in a honeycomb-like structure.

Acoustic plaster is porous and absorbs sound. The plaster finishes most commonly used for covering a media room and a cinema hall is those that have the least eco-echo effect.

2. Asbestos Marble Plaster

Asbestos cement is also used in combination with crushed fine marble and cement to create a flawless Surface Finish.

3. Barium Plaster

Radioactivity is a major concern in X-ray cabinets. Therefore, it is important to mix barium soleplate with mortar in order to protect people who work in these areas from radioactivity.

4. Granite Silicone Plaster

This plaster finish is made by mixing silicon, granite, and mortar. These plaster finishes are used for constructions that have superior characteristics.

It is elastic in nature and fasts in the setting. This plaster fills in cracks and crevices.

5. Gypsum Plaster

Plaster for parties can be made by heating gypsum from 165°C to 170°C. The plaster can be heated for 5-8 minutes, and it will become liquified.

To increase the mortar’s setting time, a suitable retarder can be used in conjunction with POP. A POP can be used to repair cracks and for ornamental work.

It is lightweight, soundproof, and fire-resistant and can be used in construction.

6. Keene’s Cement Plaster

In fixed amounts, POP and alum are combined to make Keene’s Cement Plaster. These plasters are decorative and look great after hardening.