Vinyl Resins

table 9
28
Compatibility a
of UCAR® Hydroxyl-Modified Vinyl Resins with Other Resins
Vinyl/Modifier Ratio b
VAGH VAGD VROH
Modifier Resin 4:1 1:4 4:1 1:4 4:1 1:4
Alkyds (non-drying) c
“Beckosol” 12-021, coconut, short oil, PA content - 47% C C C C C C
Alkyds (drying) c
“Beckosol” 11-035, soya, medium oil, PA content - 35% C I C I H I
“Beckosol” 12-005, soya, short oil, PA content - 42% C C C C C C
“Beckosol” 11-070,
linseed/soya, medium oil, PA content - 31% C I C I H I
“Beckosol” 12-054,
tall oil fatty acids, short oil, PA content - 41% C C C C C C
Urea-Formaldehyde Resins d
“Beetle” 55 (methylated resin) I I I I I I
“Beetle” 60 (methylated resin) I I I I I I
“Beetle” 65 (methylated resin) I I I I I I
“Beetle” 80 (butylated resin) C C C C C C
Hexamethoxymethylmelamine d
“Cymel” 303 C C C C C C
Melamine-Formaldehyde Resins d
“Cymel” 350 C C C C C C
“Cymel” 370 (methylated resin) C C C C C C
“Cymel” 225-10 (rapid-cure resin) H I H I H I
Urethane Prepolymers e
“Mondur” CB-60, aromatic polyisocyanate C C C C C C
“Desmondur” N-75, aliphatic polyisocyanate C C C C C C
“Mondur” HC, polyisocyanate copolymer C C C C C C
Key:
C = Compatible (a) 5-mil (125 microns) wet drawdowns on glass; coatings dried 20 min at 140°F (60ºC) prior to rating
H = Haze in film, but coating uniform (b) Solids basis
I = Incompatible (c) Reichhold
PA = Phthalic Anhydride (d) Cytec Industries
(e) Bayer