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Product overview
SYNOLAC® O21NBg is a saturated polyester recommended for the coil coating industry for cost effective backers and exterior topcoats.
Industrial segment Coil
Coating layers Backer, Pigmented topcoat, Topcoat
Curing type 1K stoving
Performance benefits Durability, Flexibility, Hardness
Viscosity Z3Z4 - Z4Z5 Gardner (25°C)
OH on solids 1.5%
% NVC 69 - 71
Volatile Aromatic naphta solvent 160 - 180°C and Butyl Glycol
Color (max) 2 Gardner
Acid value on solids (mg KOH/g) 10 max