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Venetian Plaster Step by Step Application - How to apply

Getting Started...
Stucco Veneziano can be applied many of different ways. Here, we demonstrate a traditional, highly polished, 3 coat trowel and spatula application. Assuming the wall has been properly prepared, Stucco Veneziano can be applied over many types of surfaces. Here it is applied on drywall over a base of Acrylic Fixative and Quartz Primer.

Preparation
Ideal conditions for applying Stucco Veneziano are interior walls with smooth surfaces. Mandatory for a long-lasting guarantee, a thin coat of Acrylic Fixative is always necessary. Secondly, for a fine and smooth surface that promotes higher spreading rates and absorption, a coat of Quartz Paint Primer, diluted up to 25% by volume, is suggested for a high quality application. Application over standard PVA primers will not cause problems; however, applying Stucco Veneziano over a mineral surface has proven to have a few advantages. For more information on advanced preparation techniques and preparing alternate surfaces such as cement, wood, or even metal, refer to the advanced preparation tutorial.


The Application
( select images for closer views )
 

Fig 1.(Tip)
Apply a medium size amount of Veneziano to the edge of a stainless steel trowel using a mixing knife. If you are right handed, apply the plaster to the right side of the trowel, if left handed, apply product on the left. Begin to apply a first coat over a smooth and primed surface.

 

Fig 2.
When applying the first coat, a trowel or spatula may be used. Remember, larger trowels cover larger areas. However, smaller spatulas and smaller trowels are often used and may decrease stress in the chest, arms, and back. It is extremely important to apply the first coat as thin as possible. In a room temperature environment, Stucco Veneziano's open time ranges from approximately 15-30 minutes.

 

Fig 3. (Tip)
Using long and swift motions create a smooth and even first layer of Veneziano. Try to create a level and uniform 1st coat. If white from the primer still transpires through the first coat, its okay. The second and third coats will completely cover these areas.

 

Fig 4. (Tip)
Notice the effects created after only one coat of natural Stucco Veneziano. In some situations, polishing only one coat of Veneziano may provide a desirable effect. You may even tint the base coat of Quartz Paint in order to perfectly conceal the surface after only one coat.

 

Fig 5. (Option)
Once the surface is dry, you may begin adding the second coat. Wait at least 1 hour for the first coat to completely dry. Before applying a second coat, scrape off any excess or dried product. Make sure the surface is completely smooth and ready for a second coat.

 

Fig 6.
Repeat the procedure demonstrated in Figures 1-3. Alternating to a smaller spatula or hand spatula during the second coat may add more encaustic depth to the finish, however, for this application, two, thin base coats are applied without pattern. While adding the second and third coats, it is important to work with a clean trowel. Having a bucket of warm water nearby may lessen the chances of creating unwanted scratches in the surface.

 

Fig 7. (Tip)
After the second coat, allow 1-2 hours for the surface to dry. Once dry, a light sanding with 600 grade sandpaper in a circular motion may be a good idea, however not necessary on all occasions. Before applying the finishing coat, scrape the surface again as shown in figure 5.

 

Fig 8. (Tip)
The final coat is often applied with a 8-12 cm spatula or small trowel, depending on the desired final effect. Typically, busy patterns are created with smaller tools, while larger and less encaustic patterns are created with trowels and larger plastering knives. Begin to work 3-4 square foot segments of the surface, connecting each subsequent patch moving from either the top left or bottom left of the wall, moving clockwise, or visa versa.

 

Fig 9. (Option)
To create your encaustic patterns, use a stainless steel tool and move about in cross-hatching or figure 8 patterns, gently applying product, then quickly removing it. Similar to the movements of traditional patching or taping, the final effects of Traditional Stucco Veneziano are random yet uniform in size. Skip troweling by keeping the trowel or spatula at a 10° angle and lightly feathering the stucco onto the surface is easy to achieve during this phase.

 

Fig 10. (Option)
For larger encaustic patterns, a stainless steel float or rounded plastering trowel should be used. Using a thorough and consistent method of application, spread a thin and final layer using an 's' motion, a cross-hatch, or skip trowel movement.

 

Fig 11. (Option)
Once the wall is completely dried, use a 600 grit sandpaper to lightly sand the surface. Sanding in a circular motion blends the layers of Stucco and brings the underlying layers to the surface.

 

Fig 12. (Option)
Once lightly sanded, you may wipe down the surface with a cotton or cheese cloth rag. At this point, a fair level of sheen may already appear.

 

Fig 13. (Option)
Using a stainless steel blade, begin to polish the surface using a downward or horizontal movement. Keeping the trowel at a low angle will prevent surface scratching. If waxing the final surface, added sheen can be achieved without burnishing.

 

Fig 14. (Tip)
Remember to make sure the surface is completely dry before polishing. Burnishing with a clean and dry tool is also important. Using a steady and consistent force while burnishing will help to create a homogenous finish.

 

Fig 15. (Option)
A final coat of Wax for Plaster may be applied for added gloss and protection. If applying Wax for Plaster, allow 1-2 weeks for the product to settle before applying it. Not waiting may cause unwanted streaking on the final surface. Waxing is not necessary for creating polished Venetian Plasters, however, recommended in areas exposed to continuous moisture.

 

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