How to Apply: Marmorino Carrara

dsc_0758.jpg

Download Marmorino MSDS sheet. (Word doc)

Description:
This finish is smooth with a variable degree of luster depending on how much it has been burnished. The workmanship is visible to the eye. Marmorino Carrara is suitable for both interior and exterior surfaces.

Composition:

Slaked lime, marble powder in grains and additives.

Packaging:
24 kg. net (52.911 lb) polyethylene containers
4 kg. net (8.18 lb) polyethylene containers

The product is white and can be tinted with our Color System.

Theoretical yield:
Full 2.5 coat cycle for polished Carrara finish:
Metric: Approximately 1300-1800 grams per square meter, i.e. 13-18 square meters per 24 kg bucket.
U.S.: Approximately 150-200 square feet per 24 kg bucket.

Step by step coverage:
1st coat:
Metric: Approximately 800-1000 grams per square meter, i.e. 24-30 square meters per 24 kg bucket.
U.S.: Approximately 260-320 square feet per 24 kg bucket.

There is generally no need to color the material for the first coat

2nd Coat – Step One
Metric: Approximately 400-600 grams per square meter, i.e. 40-60 square meters per 24 kg bucket.
U.S.: Approximately 430-650 square feet per 24 kg bucket.

2nd Coat – Step Two (Polishing Coat)
Metric: Approximately 100-200 grams per square meter, i.e. 120-240 square meters per 24 kg bucket.
U.S.: Approximately 1200-2400 square feet per 24 kg bucket.

***Use theoretical yields as a guide only – actual spread rates will vary depending on surface conditions and application techniques.

Where to apply Marmorino Carrara:

Type of surface

Preparation required

New plaster lime based

No priming necessary

Gypsum

One coat of Quartz Primer

Plasterboard

One coat of Quartz Primer

Medium density

One coat of Quartz Primer

Old plaster

Brush down thoroughly and one coat of Fondo Normal or of Quartz Primer

Limewash

Brush down thoroughly and one coat of Quartz Primer or Fondo Normal

Polished lime finish

Brush down thoroughly and sandpaper and one coat of Quartz Primer

Washable paint

One coat of Quartz Primer

How to apply Marmorino Carrara:
Tools necessary for application: Normal big trowel, good big trowel, medium size good trowel, plastic trowel, soft cloth.

Before application:
Protection of the work area:
Tape around all baseboards, doors and windows before beginning work. The first coat applied can be either white or colored plaster.
Don’t apply in temperatures below 5°C (41°F).

-Remember to have a strong light parallel to the wall and situated on only one of the two sides of the wall you are working on (usually on the same side other sources of light come from such as the windows). In this way the shadow of the trowel allows you to see the actual state of the finish. Every so often, during the second and third coat, the light should be moved so that the wall doesn’t dry out too much in one spot from the heat of the lamp.

-The first coat is applied with a metal trowel using visible strokes, which will be the underlying base for the final coats. This coat is applied thickly, using about 950/ 1000 grams of material per square meter. The aim in laying the first coat is to obtain a thick, absorbent layer on which to spread the successive coats.

-During all the application of the three coats keep a strong light parallel to the wall. To avoid problems removing the masking tape at the end of the job, it is best to replace all the tape when the first coat is almost or completely dry.

-When the first coat has completely dried, normally by the next day, the second coat is carefully applied with a large metal trowel using 750 / 800 grams per square meter. Always keep in mind that the aim of this coat is to lay the smoothest and most uniform surface possible, being careful to avoid the creation of shiny areas. Since shiny areas can cause problems when applying the successive coats, it is necessary to work with a light touch, without pressing too hard; maintain a 40° angle with the blade of the trowel. If a single second coat does not succeed in obtaining a smooth, even surface, you should apply another coat before the second coat begins to dry. We suggest applying this additional second coat especially when the desired finish is to have little or no texture or when you want to achieve a superior quality job.

-As soon as the second coat begins to dry you can apply (wet into wet, so that the granules of marble can penetrate into the previously applied coat) the last one in very thin layer (80–100 grams per m2) to small areas (max. 1 m2) with a large, or better yet, medium-sized metal trowel. Normally, you should start high on the wall (on either the right- preferred by left handed- or the left side –preferred by right-hand people- of the wall) swiping on one trowel application after another; each time, the trowel swipe should be in a different direction than the previous one so that you obtain a harmonious design. At the beginning of each swipe, the blade of the trowel should be at a 30–35° angle to the wall moving toward the plaster you have already laid. As you continue the swiping movement, you immediately remove excess material by changing the angle of the spatula to 40–45° while moving toward the area you have previous laid. In this way you keep the newly-laid plaster thin enough over the previous applications while shining the area of contact between the newly-laid plaster and the area you have already polished. Since the material on your spatula dries out over time, occasionally you will need to scrape the thickened material off, disposing of it, and replacing it with fresh plaster.

-To achieve seamless application when moving from one section to the other you need to proceed both horizontally and vertically. Normally, the application should continue until the wall is completely finished. If the wall is large, you will need more than one person to apply the finish; otherwise, you risk leaving unsightly overlapping marks.

-With this coat, proceed to the final polishing, going over the surface repeatedly with a clean metal trowel. Be sure the edges of the blade of the trowel are always even by using P240–360 sandpaper. Occasionally, go back to the last square meter and burnish all of it. For a more highly polished finish we suggest burnishing at the end (after burnished with the metal trowel and before it’s dry) using a plastic trowel (prepared with rounded edges) and then with a soft fabric cloth. If 3 people are working, it’s best that 2 people apply the material with a quick polishing and the 3rd person only polish.

-Important note: While applying the third coat, but especially during the polishing phase be careful to move the trowel with the back of the trowel directly following in the path of the front of the trowel. That is, the movement of the trowel MUST NOT be perpendicular to the trowel’s handle, but parallel to it. If this is not possible, then the trowel’s movement on the wall should form a 45° angle with respect to the its axis (the handle).

-During application be sure the work area isn’t too damp or warm to avoid problems with application times.

-With Carrara, once it is completely dry, but not before 24 hours have passed, we suggest using our Natural Bee’s Wax, colored with the same pigment you used for the stucco. It makes the finish more refined ( “richer”), reducing light spots.

-Remember when you are applying our Marmorino, it should not be too difficult. If it seems too difficult, stop and try to understand what the problem is.

Protecting surfaces against dirt:
Marmorino, thanks to its smooth surface, is a finish which doesn’t get dirty easily. However, we advise the following protective treatments.

Interiors
After a minimum of 24 hours, at least one coat of the following can be applied:
A coat of Natural Bee’s Wax to obtain waterproofing and a general protection against dirt. It makes the surface shinier.
A coat of Marseille Soap waterproofing. This does not make the surface look shinier.