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Table 1 Description of the PU coating references from the GCI collection investigated in this study

From: Polyurethane coatings used in twentieth century outdoor painted sculptures. Part I: comparative study of various systems by means of ATR-FTIR spectroscopy

Artist

OPS

Trade names

Coating type

Sample×

Color

2KSBPU

 R. Lichtenstein

Three brushstrokes (1984)

DuPont®/Imron® 2.1 HG-C™

C

2

Cl, Bl

 R. Lichtenstein

Three brushstrokes (1984)

DuPont®/Imron® 2.1 HG™

T

5

Rd, W, Bk, Yel

 R. Lichtenstein

Three brushstrokes (1984)

DuPont®/Imron® 5.0™

T

13

W, Bk, Gr, Bl, Yel, Rd, Br

 R. Lichtenstein

n/a

Awlgrip®/(unknown)

T

25

W, Bk, Gr, Bl, Yel, Rd, Or, Gy, Br, Si

 R. Lichtenstein

n/a

Akzo Nobel/Akzo topcoat 683-3-7

C

13

Cl, W, Bk, Yel, Bl, Rd, Gr

 A. Caro

Box piece E (1971)

Nason®/FullBase 3.5 VOC

T

2

Rd

 M. di Suvero

Gandydancer’s Dream (1987–88)

DuPont®/Imron®Industrial Strength Ultra Low VOC™

T

2

Rd

 M. di Suvero

n/a

Tnemec®/Endura-Shield® II 1075

T

1

Bk

 M. di Suvero

n/a

Tnemec®/Endura-Shield® II 1074S

T

5

Rd, Or, Yel

 A. Calder

Spiny Top (1963)

DuPont®/Imron® 2.1 SG “E”™

T

1

Rd

 A. Calder

Jousters (1963)

MPC™/Satin MAP

T

3

Rd, Bk, W

 A. Calder

Jousters (1963)

MPC™/42900SP Matte Clear

C

1

Cl

 A. Calder

n/a

NCP®/2KSBPU

T

1

Rd

 A. Calder

La Grande Vitesse (1969)

Tnemec®/Endura-Shield® II 1074U

T

1

Rd

 A. Calder

Peau Rouge (1971)

Tnemec®/Endura-Shield® 73

T

1

Rd

 T. Smith

n/a

Tnemec®/Endura-Shield® Series 175

T

1

Bk

 T. Smith

n/a

Akzo Nobel/Aerodur® 5000

T

1

Bk

 C. Oldenburg/C. Van Bruggen

Corridor Pin Blue (1999)

PPG/Deltron® DBU

T

1

Bl

 G. Hume

Back of Snowman (Ink)

BASF/Glasurit® 22 line

T

1

Bl

 R. Murray

Nimbus (1978)

Sherwin-Williams®/Polane®

T

1

Bl

 n/a

n/a

DuPont®/Imron® Industrial Strength™

T

1

W

 n/a

n/a

DuPont®/Imron® 3.5 HG-D™

T

1

Bk

 n/a

n/a

DuPont®/Imron® 2.1 HG, SG, FT, ST™

T

21

Bk, W, Yel, Gr

 n/a

n/a

DuPont®/Imron® 2.1 Pr-P™

P

1

W

 n/a

n/a

DuPont®/Imron® 2.1 HG-D™

T

1

W

 n/a

n/a

DuPont®/Imron® 2.1 EZ-C™

C

1

Or

 n/a

n/a

Awlgrip®/Awlcraft 2000®

T

3

Bk, W

 n/a

n/a

Awlgrip®/Awlcraft 2000®

C

1

Cl

2KWBPU

 A. Calder

Jousters (1963)

NCP®/2KWBPU

T

9

W, Bk, Rd, Yel

 A. Calder

Four Arches (1975) intermediate model

Spectrum coatings/W-series

T

1

Rd

 A. Calder

n/a

Formulated by J.A. Escarsega

C

1

Cl

 A. Calder

n/a

Formulated by J.A. Escarsega

C

1

Cl

 n/a

n/a

DuPont®/Imron® ZV-HG™

T

1

W

1KWBPU

 n/a

n/a

DuPont®/Imron® 1.5 ST-D™

T

1

W

 n/a

n/a

DuPont®/Imron® 1.5 PR™

P

2

W

 n/a

n/a

DuPont®/Imron® 1.2 HG-C™

C

1

Cl

2KFPU

 T. Smith

n/a

PPG/Coraflon® ADS Intermix

T

1

Bk

 T. Smith

n/a

PPG/Coraflon® ADS Intermix low VOC

T

1

Bk

 T. Smith

n/a

Sherwin-Williams®/Fluorokem™ HS Satin

T

1

Bk

 T. Smith

n/a

Carboline®/Carboxane 950 Satin

T

1

Bk

 T. Smith

n/a

Tnemec®/Fluoronar® Series 1072

T

1

Bk

 D. Judd

Untitled (1968)

Tnemec®/Fluoronar® Series 1072

T

2

Gr

 R. Murray

Duet (1965)

Tnemec®/Fluoronar® Series 1072 V

T

1

Or

 n/a

n/a

Tnemec®/Fluoronar® Series 1071

T

1

Bl

  1. T topcoat (pigmented), C clearcoat, P primer, Bk black, Gr green, Gy gray, Rd red, Bl blue, Yel yellow, W white, Or orange, Cl clear, Br brown, Si silver