Supply List for Keith Thirgood Plein Air Acrylic Workshop June 2023
Keith will be teaching colour mixing using a limited pallette suitable for plein air painting. The basic colours to achieve success are listed below.
Benzimidazolone Yellow Medium PY154 OR Hansa Yellow Medium PY73 (ALT Yellow Medium Azo, Azo Yellow Deep, Yellow Orange Azo) (Large tube) WARM
Napthol Red Light PR9 or PR112 (ALT Pyrole Red or Cadmium Red Light) WARM
Quinacridone Magenta PR122 (no real substitute) COOL
Indanthrene Blue PB60 (ALT Ultramarine Blue, red shade) WARM
Phthalo Blue green shade PB15 [PB15.4] (ALT Phthalo Blue) COOL
Burnt Umber PBr7 OR Transparent Burnt Umber WARM
Phthalo Green yellow shade PG36 (ALT Phthalo Green) WARM
Titanium White (large tube)
The bolded colours are the best choices but the ALTernates are acceptable. Checking for the pigment numbers help to get the right paint.
Recommended brands are as follows:
Acrylic – Artist Grade only Liquitex Heavy Body, except Golden is the only one to carry Hansa Yellow Medium
Oils - Artist Grade only. Gamblin, Da Vinci, Graham, Old Holland, Rembrandt, Sennelier, Winsor Newton.
Bring your own plein air pallette of colours if you are comfortable with it.
Brushes. Brights, 1” or ¾”, #4 and #2. synthetic for acrylic and hogs hair for oil.
Recommended Brands: Princeton Catalyst polytip bristle, Simply Simmons, wash and bright Lines, Curry's green handled brushes.
Boards: Canvas boards or stretched canvas. 1-4 boards per day. 11X14 and/or 12x16.
Boards work best outdoors because the light doesn't shine through them.
Large tube or pot of inexpensive acrylic in Cadmium red, orange or yellow to tone your boards. Black acrylic, enough for one board. Works for both acrylic and oil painters.
Sketching: Small 3x5 or 5x7 sketchbook, pencil, eraser. One soft pencil B3 to B5.
Grey scale markers. Tombow work best..one black, one middle grey N95, one light grey N65. Also a 0.05 technical pen, permanent.
Other: one piece of white blackboard chalk.
A pad of tear off palette paper for colour mixing.
Acrylics: water, water container, rags or blue shop towels, pallette,
Oils, odourless mineral spirits, rags, palette
A sheet of illustration board for making sketching templates (You can pre-make the templates at homeand bring them. Only make them for board sizes you use. If you are going to make them at theworkshop, bring an xacto knife, metal edge ruler and cutting mat.
Template size Ratio Painting surfaces this represents
3” x 3” 3 : 3 Any square surface
3 x 4 3 : 4 6x8, 9x12, 12x16, 18x24, 30x40, 36x48
3 x 4-3/16 3 : 4.2 5x7
3 x 3-11/32 3 : 3.333 18x20
3 x 3-3/4 3 : 3.75 8x10, 16x20
3 x 3-19/32 3 : 3.6 20x24
3 x 3-13/16 3 : 3.8181 11x14
3 x 4-1/2 3 : 4.5 4x6, 20x30, 24x36
Make up one template for each surface size you use. You can do this at home based on the size of the boards you are bringing.
Equipment for plein air painting
hat, sunscreen, bug spray.