PRODUCT HISTORY

Whether you are a professional or an amateur artist, our products should be included in you list of art supplies.  Garrett Copal Concentrate and Garrett Copal Medium will increase the techniques available to the oil painter.  Paint brushes and palette knives become more durable tools with the copal mediums, as was well known by the Flemish and Renaissance Masters.  When painting with oils, the artist should not discount the use of Garrett Copal Mediums.  Our medium is an organic resinous varnish which becomes part of the paint and eliminates the need for a final coat of varnish.  The finished painting is then impervious to most solvents and environmental hazards.

Copal is a hard fossil resin akin to amber and both were employed by the early Flemish Masters as a painting medium.  The earliest written account dates to the 12th century, although copals may have been used earlier.  

The hard resins which include copal and amber are from extinct trees, usually conifers, and are found at various locations worldwide.   These resins range in age from thousands to millions of years old.  These resins will not dissolve in most modern solvents unless subjected to high temperatures.   On the Moh's hardness scale, copal has a hardness of 1 to 1.5, and amber has a hardness of 1 to 3.  Their light refraction is equal.  Left in its natural state, copal will become amber over time.

Modern oil paints, for the most part, employ aluminum stearate (a metallic soap) which keeps the oil from separating from the pigment, but creates "short" or stiff paint that lacks viscosity.  Garrett Copal Concentrate is a viscous material that will turn short paint into long paint with the addition of one or two drops per inch or paint as it comes from the tube.  With the addition of Garrett Copal Concentrate to tube paint, brush strokes will fuse and seek their own level.  Brush strokes executed with short or stiff tube paint will retain the sharp grooves of the bristles.  The natural brilliance and luminosity of the paint is retained with the addition of a few drops of our concentrate.  The properties of our product make each layer of a glaze blend with the next and allows for the soft transition from one color to the next.  They also allow for a more uniform drying time.  Long paint allows the artist greater range for fine details with a brush or knife.

Sir Arthur Church stated at the turn of the 20th Century that copal combined with certain oils produces a surface that is hard but does not crack and is preferable to the soft surface of oil alone.  Professor A.B. Laurie of the Royal Academy, London, suggested that the perfect preservation of paintings of the Flemish Masters was due to the use of copal as a medium.  Fredrick Taubes, renowned artist, technician, and author, recommended copal mediums.

Our Contact Information

Telephone: (505) 762-5167
FAX: (505) 763-5974
Postal Address:
1616 Claremont
Clovis, NM 88101
EMail: ron@garrettcopal.com