It is a type of decorative plaster and technique that has been used for centuries to create smooth, lustrous finishes on walls and other surfaces. It has a timeless and elegant appearance and can be used in various styles from traditional to modern to create high-end finishes that add texture, depth, and sophistication.

It is traditionally made using a paste derived from limestone, marble dust, and other natural ingredients. 

The marble dust provides Marmorino with its distinctive depth and character. It also contributes to its durability and smooth texture.

Once the lime paste and marble dust is thoroughly mixed, it is then allowed to age. Aging allows the lime to react with carbon dioxide in the air which also enhances the strength and quality of the plaster.

Depending on the desired properties, additional natural additives may be included. These can include natural pigments for color variation, fine sands for texture, or other ingredients that enhance workability or adhesion.

The difference between high-quality and poor-quality Marmorino lies in several factors, including the materials used, craftsmanship, application techniques, and the final appearance and durability of the plaster. Here are some key distinctions:

Materials: High-quality Marmorino typically uses premium ingredients, such as high-purity lime, finely ground marble dust, and natural pigments. These materials contribute to a smoother, more consistent texture and better color vibrancy. In contrast, poor-quality Marmorino may use inferior or impure ingredients, resulting in a rougher texture and less desirable color variations.

Appearance and durability: High-quality Marmorino exhibits a refined and uniform appearance with a smooth, polished finish. It has excellent adhesion, resistance to cracking, and durability over time. The colors are well-blended, creating an aesthetically pleasing result. 

The plaster is applied in multiple thin layers with a trowel. Proper application techniques are essential for achieving a high-quality Marmorino finish. Skilled artisans pay attention to factors like surface preparation, layer thickness, trowel pressure, and polishing methods. They ensure that the plaster is evenly applied, properly leveled, and expertly polished.

The result is a luxurious finish with depth and subtle variations in color.

Venetian plaster can be tinted to create a wide range of colors and effects, from subtle neutrals to vibrant hues.

Overall, Venetian plaster is a very durable option for interior wall finishes. It can withstand regular use and provide an elegant and long-lasting decorative surface. However, it is important to understand its limitations and take appropriate precautions to avoid unnecessary damage or wear.

1. Impact resistance: Venetian plaster is generally resistant to minor impacts and dents. However, strong impacts or sharp objects can potentially chip or damage the surface. Care should be taken to avoid hitting or scratching the plaster with hard or sharp objects.

2. Moisture resistance: Venetian plaster is naturally porous and can absorb moisture so it is important to apply a sealant. When properly sealed, Venetian plaster can withstand occasional exposure to water and maintain its integrity. However, excessive moisture or prolonged exposure to water can cause damage.

3. Professional installation: Proper surface preparation, application techniques, and the use of high-quality materials are important factors that contribute to the longevity and durability of the plaster. 

There are several reasons why beeswax may be chosen as a sealer for Venetian plaster:

1. Natural and environmentally friendly: Beeswax is a natural substance derived from bees. It is free of harmful chemicals and synthetic additives, making it an attractive choice for those who prefer eco-friendly products.

2. Breathability: Venetian plaster is a breathable material that allows moisture to pass through it. Beeswax is also breathable, which means it allows the plaster to continue to release moisture without trapping it behind the plaster, which could lead to other issues.

3. Enhancing the appearance: It adds a subtle sheen and depth to the surface, highlighting the plaster's natural textures and colors. The wax creates a soft, warm glow that can enhance the overall aesthetic.

4. Protection: Beeswax acts as a protective barrier against stains, water, and minor abrasions. It helps to repel moisture, making the plaster more resistant to water damage. It also provides a certain level of protection against dirt, dust, and other contaminants, making the surface easier to clean and maintain.

It's worth noting that while beeswax is a popular choice for sealing Venetian plaster, other types of sealers can also be used depending on the specific requirements or desired outcome. Some sealers may provide different levels of sheen or alter the appearance of the plaster in various ways. Ultimately, the choice of sealer depends on the preferences of the homeowner or the professional applying the plaster.

1. Avoid using harsh or abrasive cleaners

2. Gentle cleaning: Use a soft cloth dampened with water. Use minimal moisture when cleaning, and ensure the surface is dried promptly after cleaning.

3. If necessary, use a diluted mild soap solution to gently clean the affected area. Test the cleaning solution on a small, inconspicuous area first.

4. If any liquids are spilled on the plaster, such as wine or juice, blot them immediately with a clean, dry cloth. Avoid rubbing the stain.

5. Over the years, if you notice that water is no longer beading on the surface or the plaster becomes more susceptible to stains, it may be time to re-seal it. 

You want a smooth primed surface:

• All cracks, including the one just above the floor (unless base or trim is going to go on) and all screw holes must be filled and sanded. 

• There cannot be ridges from taping etc. Otherwise these will show through in the burnishing stage

• Project area must be thoroughly paint primed, including cut in. This is essential for even moisture absorption.

• Venetian plaster has a very high ecologic value due to its natural raw materials composition.

• The dispersion of humidity or breathability of Venetian plaster, avoids the growth of mold and bacteria without using chemical additives.

• Venetian plaster is non-flammable and low odor. This is because neither lime nor marble dust easily ignite or support combustion. The absence of VOCs further reduces the risk of flammability.

• On the pH Scale, battery acid is a 1, milk is neutral, close to a 7, and Venetian plaster is around a 13. The alkalinity of the plaster creates an inhospitable environment for the growth of mold, mildew and bacteria. The high alkalinity also enhances resistance to staining and its properties contribute to the  curing process, strength and durability.

• The Great Pyramids of Egypt, constructed 4500 years ago, are made from limestone. Now that's durable!