RD-3290 Heat-Resistant PU Binder

RD-3290 shares the PA/PET/OPP performance platform of RD-3278N but runs at a lower viscosity and is tuned for red and other high-transparency pigments. Where a red has to stay bright after lamination and retort, this is the binder we recommend first.

Key features

• Lower viscosity for easier let-down
• Optimised for red and transparent pigments
• Good adhesion and anti-blocking
• Excellent substrate adhesion on PA / PET / OPP
• Good film-forming and solvent release
• Hydrolysis and heat resistance above 121 °C

Typical properties

Appearance	Colorless or light-yellow transparent liquid
Colour (APHA)	≤ 80
Solid content	30 ± 1 %
Viscosity (35 °C)	700 ± 100 mPa·s
Solvent system	Ethyl acetate / isopropanol
Tensile strength	≥ 25 MPa
100 % modulus	5–7 MPa
Elongation	≥ 550 %
Heat resistance	> 121 °C
Best for	Red inks
Packaging	180 kg steel drum
Shelf life	12 months, unopened, normal storage

Applications

• Red and transparent-colour inks
• Retort and boil-resistant laminates
• PA / PET / OPP film inks

Full technical data sheet, colour card and MSDS are available on request.