KINTE MATERIALS SCIENCE AND TECHNOLOGY CO., LTD.

◇ Product Name: NH3307 ◇ Application: NH3307 is a saturated polyester resin, mainly used in polyester/TGIC powder coating systems. ◇ Properties: Excellent leveling properties, extremely high weather resistance; good mechanical properties, outstanding resistance to yellowing; good storage stability, excellent chemical resistance. ◇ Technical Specifications: Performance Technical Indicators Test Method Appearance Light-colored flaky solid T/GDTL 004-2019 Acid Value (mgKOH/g) 30-35 GB/T 6743-2008 Glass Transition Temperature (°C) ～67 GB/T 19466.2 Melt Viscosity (ICI, mPa.s/200°C) 4500-6000 GB/T 9751.1-2008 Reactivity (180°C, 7% TGIC)S 200-260 T/GDTL 004-2019 ◇ Powder Reference Formulation: Materials NH3307 TGIC Pigments Fillers Leveling Agent Benzoin 701 Formulation 558 42 383 8 4 5 ◇ Powdering Process Conditions (Twin-Screw Extruder): Jacket Temperature: 110-120°C Rotation speed: 500-1200rpm; Powder particle size: <100μm; Application conditions: Electrostatic spraying 40-70KV; Coating thickness: 50-70μm; Oil-free and rust-free cold-rolled steel plate 0.5mm; Baking conditions: 200℃/10-15 minutes; Basic properties: Gelation time (180℃), s: 290-390; Horizontal flowability (180℃), mm: 26-28; Gloss (60°): ≥88%; Flexural strength (φ1mm): Pass; Adhesion (cross-cut 1mm): Grade 0; Pencil hardness: ≥1H; Impact strength (50cm): Pass; Product packaging: PE packaging bag, net weight 25±0.1kg.