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  Fresco  

Introduction to Buon Fresco Painting Workshop

Art Materials and Tools for the Workshop

Location: Santa Fe, New Mexico USA

Date: August 1-3

Register for the Workshop

Pay for the Workshop

Order the Fresco Student Kit

In the following table are the materials and tools required for the workshop. In the three right columns, each item is marked as to whether we supply the item for each student ("Yes" in Supplied column) or you may use one that we make available ("Use Ours" in Supplied column), or you should bring one ("Yes" in Bring column), and use one included in the fresco student kit (Kit) that you can purchase in advance from Natural Pigments. When the item is noted as "Use Ours," it means we have a few on hand for your use, but you may want to bring one for your own use during the workshop and afterwards. We remind students that all tools made available during the workshop are loaned to students and must be returned to Natural Pigments. You may also want to mark tools that you bring to the workshop with your name so that they are not misplaced.

Required Materials and Tools

Item

Item Description

Supplied

Bring

Kit

Portable Fresco Panel

Portable Fresco Panel

Wood panel and frame to support the fresco plaster. Made from hand-selected, Baltic Birch plywood, ruggedly made to hold your portable fresco with galvanized diamond metal lath.

Yes

 

 

Lime Putty

Lime Putty

Lime Putty for intonaco and other plaster coats. The lime putty we use comes from our own lime pit, aged at least two years and has been extensively tested for use in fresco. With lime of this purity it is possible to create brilliant fresco painting that will have excellent permanence.

Yes

 

 

Sand

Sand

Use sharp, fine sand that is well washed and graded to create a 30% void ratio by volume. The void is filled by lime putty to create the proper binder-to-aggregate ratio and represents the 1:3 ratio of binder-to-sand often found in historic fresco plaster.

Yes

 

 

Fresco Pigment Set

Pigments

Eight pigments will be available for use by students at the workshop. However, you may want to bring pigments for your own use at the workshop. You can purchase any of the pigments listed in the Fresco section of the Natural Pigments online store for this workshop. The pigments that will be available at the workshop are:
Ultramarine
Verona Green Earth
Italian Yellow Earth
Venetian Red
Italian Burnt Sienna
Italian Raw Umber
German Vine Black
Bianco San Giovani (lime white)

Yes

 

Kit

 

Milk of Lime

Milk of Lime is for tempering pigments and mixing with colors in the first coat of paint.

Yes

 

 

Painting Tools

Painting on the moist plaster requires long and soft hair brushes. At the beginning, the plaster surface is sensitive, so broad Kolinsky and Red Sable brushes are best for painting the first colors. When the first coat of color begins to set, long bristle brushes can be used. Kolinsky hair brushes are the best brushes for fresco painting, but the rough surface will wear the hairs quickly. We recommend Kolinsky brushes, if you can afford it, but Red Sable, Fitch and Squirrel hair are also good for fresco painting. Goat hair brushes are well suited for leaving streaky uneven brush strokes that are interesting as accents.

Round Brushes

Round Brushes

Kolinsky, Red Sable or Squirrel hair round brushes:
Sizes #2, #4 and #8

Bristle hair round brushes:
Sizes #2, #4 and #8

The exact sizes are not too important, however brushes approximately of this size range should be available.

No

Yes

 

Flat Brushes

Flat Brushes

Kolinsky, Red Sable, Fitch or Squirrel hair flat brush:
Size #20 or 20 mm (3/4 inch) wide

Bristle hair flat brush:
Size #20 or 20 mm (3/4 inch) wide

The exact size is not too important but brushes approximately of this size should be available.

No

Yes

 

Palette

Palette

Any palette with 8 to 10 wells, such as the 10-well round plastic palette, 7.5 in. (19 cm) diameter, pictured at left.

No

Yes

Kit

Drawing Tools

Tools and supplies necessary to transfer your drawing to the plaster surface. Other supplies that you will need are: Pencil, HB; Eraser; Drafting tape, 2 cm (0.75 in.) wide; Tacks; Latex gloves and Hand lotion. We will have these items available for you to use at the workshop.

Round Brushes

Tracing Paper

Ordinary white bond is suited for drawing and painting the cartoon and transferring it to the fresco plaster.

Yes

 

 

Transfer Paper

Transfer Paper

To transfer designs onto most surfaces. Transfer paper leaves no wax residue to interfere with the acceptance of paint. The transfer marks erase like pencil with no smear. Paint over the tracing won't skip or bead and can be re-used over and over again.

Yes

 

 

Stylus

Stylus

To transfer drawings to a panel with a stylus that will not tear the paper. Rounded points prevent tears, one point for fine work and the other for thicker lines.

No

Yes

Kit

Paint Making Tools

Paint Making Tools are used to mix the dry pigments with water, preparing the colors for application to the wet plaster.

Mortar and Pestle

Mortar and Pestle

Porcelain mortar and pestle for grinding pigments. The hard inside surface is unglazed allowing you to easily abrade materials to the degree of fineness needed for painting.

 

Yes

Kit

Squeeze Bottle

Squeeze Bottle

Squeeze bottle with spout cap for dispensing water used to mix with powder pigments.

 

Yes

Kit

Muller

Muller

Glass muller for grinding powder pigments. The bottom of the glass muller is flat and sandblasted to provide an excellent grinding surface.

Use Ours

 

 

Grinding Plate

Grinding Plate

Glass plate with sanded edges for use with the muller to disperse pigments into water.

Use Ours

 

 

Spatula

Spatula

The spatula is used to mix dry pigment powder with water on a glass slab. Use it with a muller and slab to mix pigment with water and scraping accumulated paint from the sides of the muller or to collect paint into the center of the slab.

Use Ours

 

 

Wide Mouth Jar

Wide Mouth Jars

Wide mouth jars for storing pigment ground in water. About 8 to 10 will be needed at the workshop.

Yes

 

 

Plaster Tools

Trowels are used to apply plaster and finish the surface before painting. All our tools were selected for their suitability for fresco. They are the finest made to give years of service. The handle rise should be set for the correct “hang” and balance. The blade should be taper-ground and polished to give it the right amount of flexibility.

Mixing Board

Mixing Board

The mixing board and mortar pan are used to mix the lime putty and sand. If made of high density polyethylene, it is durable, lightweight and easy to clean after mixing plaster. Dry plaster will not stick to its surface, so clean up is easy.

Use Ours

 

 

Mortar Hoe

Mortar Hoe

The mortar hoe is used to mix the plaster and sand together. The holes in the blade allow for more effective mixing on a mixing board or in a mortar pan. The hoe from Natural Pigments head is one-piece forged from carbon steel, riveted to a steel ferrule. This hoe has a heavy-duty 45.7 cm (18-in.) hardwood handle with a sturdy "D" grip.

Use Ours

 

 

Gauging Trowel

Gauging Trowel

Gauging Trowel is a versatile tool for transferring plaster (rounded point is ideal for picking plaster out of a pail) and applying plaster. Use to mix or "gauge" small amounts of plaster. The rounded shape of the blade’s heel allows plaster to be carried further forward on the blade. Size: 17,78 x 8,57 cm (7 x 3-3/8 in.)

No

Yes

Kit

Wood Float

Wood Float

Wood Float is used to prepare the surface for troweling or, if a rough finish is desired, floating is the final operation. Ours are made from 1,27 cm (1/2 in.) thick seasoned mahogany with a very smooth finish. The plastic handle is both comfortable and durable. This is the most popular float for fresco: 30,48 x 8,89 cm (12 x 3-1/2 in.).

No

Yes

Kit

Finishing Trowel

Finishing Trowel

Finishing Trowel is used to put a smooth finish on plaster. It compacts the surface adding to its quality and durability. Ours have a high-carbon steel blade is cross-ground (usually only found on better finishing trowels) to hold its shape better. The handle is curved for better handling and machine fitted onto the milled shank. Finishing trowels are narrower and longer than plastering trowels and the blade is slightly convex. Ideal size for fresco most work: 20,3 x 7,6 cm (8 x 3 in.).

No

Yes

Kit

Utility Brush

Utility Brush

The short handle brush is for cleaning surfaces and tools. White tampico bristles are set in a high-tensile strength foam plastic block. The scrub brush will not absorb water and is made for long service.

Use Ours

 

 

 

Optional Materials and Tools

Item

Item Description

Bullnose Pointing Trowel

Bullnose Pointing Trowel

Bullnose Pointing Trowel is for polishing the final plaster coat prior to transferring the cartoon and the completed fresco. Also useful to apply plaster in tight or curved areas. Pointing trowels are handy for patchwork and cleaning other tools. Size: 13,97 x 4,76 cm (5-1/2 x 1-7/8 in.)

 

Portable Desk Lamp

Although the workshop location is generally well lighted, a portable desk lamp may be a good idea to bring.

 

Extension Cord

If you bring a portable desk lamp, you will need to bring a grounded electrical cord between 12 and 18 feet long.

Selecting a Picture to Paint

You are welcome to choose any image that you like as your reference to paint for the class. However, we recommend that you use an image of a fresco painting, similar to the ones that appear on the fresco workshop page or below. Attempting to paint an image in fresco that was originally painted in another medium, such as oil paint, will prove to be difficult and frustrating. You can use one of the images below as the picture you paint at the workshop. Choose a picture that you feel comfortable painting. Some are more difficult than others. To download an image already sized for the workshop, click on the picture. This opens a new window with a larger view of the image. Right click on this picture with your mouse, which opens a menu (in both Windows and Macintosh), and choose "Save Picture as..." or "Save Image as...".

Please do not use images that are complex and contain many elements. This will make learning difficult and you will be frustrated attempting to paint such an image for the first time in fresco. If you have any question about the suitability of an image you want to use at the workshop, send it to the instructor by email for evaluation.

The portable fresco panels that we use in the workshop measure 12 by 16 inches on the outside. We would like to use larger panels for workshop, but carrying a large and heavy fresco panel home with you (especially if you are arriving to the workshop city by airline) is not convenient. Select an image that will fit the aspect ratio of the fresco panel either vertically or horizontally (portrait or landscape format).

IMPORTANT: Please size your image to fit within the 12 by 16 inch area, allowing about ¾ inch on each side for the wood frame. The actual image area is about 10.75 by 14.75 inches. If you scale your image you will save time at the workshop by not having to spend it scaling the image to fit the panel.

 

Fresco Images
Glass vase filled with fruit (detail) of fresco in a room of Poppaea's Villa at Oplontis

Glass vase filled with fruit (detail) of fresco in a room of Poppaea's Villa at Oplontis, Italy

Garden from fresco of the triclinium of the House of the Golden Bracelet, Pompeii, Italy

Garden (detail) from a fresco of the triclinium of the House of the Golden Bracelet, Pompeii, Italy

Fountain and bird from fresco of the triclinium of the House of the Golden Bracelet, Pompeii, Italy

Fountain and bird (detail) from a fresco of the triclinium of the House of the Golden Bracelet, Pompeii, Italy

Female behind figure of the Bacchante in Scene VII from the Villa of the Mysteries, Porta Ercolan, Italy

Female (detail) behind the figure of the Bacchante in Scene VII, Villa of the Mysteries, Porta Ercolano, Italy

Giotto, angel (detail) from Scrovegni Arena Chapel

Angel (detail), Giotto di Bondone, c. 1305-06, fresco, Scrovegni (Arena) Chapel, Padova, Italy

Andrea del Castagno, Queen Esther

Queen Esther (detail), Andrea di Bartolo di Bargilla (known as Andrea del Castagno), c. 1450, fresco, Galleria degli Uffizi, Firenze, Italy