gesättigtes carboxyliertes Polyesterharz

Xianjing P1602-2Saturated carboxylated polyester resinGeneral Description Xianjing P1602-2 is a medium reactivity polyester resin, designedfor 60:40 hybrid powder coatings. Coatings based on it exhibit:· Very good storage stability· Good flow· Outstanding mechanical properties·Good yellowing resistanceProduct Specifications PropertyRangeTest MethodAppearancePale granulesVisualAcid value, mgKOH/g50 56ASTM D1639Viscosity @ 200°C ,mPa.s3000 6000ASTM D4287Gardner Color(50% solution)≤3ASTM D1544softening point,°C90 100ball and ring methodOther Data PropertyRangeTest MethodGlass transition temp.,°Capprox. 50DSCPackaging · White PE bag, N.W.25kg/bag, 1000kg/pallet.· Big bags 750 kg.Storage The product can be stably stored for at least one year when keptin closed containers in a dry place at temperature below 30°C .Avoid exposure to direct sunlight. Starting Formulation ComponentWeight%P1602-239.0Epoxy Resin1)26.0Titanium dioxide2)33.5Flow control agent3)1.0Benzoin0.51) DER663U,DOW Chemicals,orCYD-014 Yueyang 2) Ti-pure®R-706, DuPont 3) Resiflow PV 88, Estron,Byk 366P,BYK Extrusion & Application Conditions Extruder:SLJ-20 Zone I temp.:85 105°C Zone II temp:100 120°C Screw speed:400 500rpm Panel: 0.5 mm pre-treated cold-rolled steel Spray gun: Voltage:60-90Kv Curing cycles:15min.@180°C Film Properties Test item ResultTest Method Film thickness,μm Approx.60ASTM D1186 Gloss@60°,% Min.90GB/T9754-88 Direct/reverse impact, inch lbs 50/50GB/T1732-93 1/8”Conical mandrel Max.3GB/T6742-86 Adhesion(cross cut) 5BGB/T9286-98 Pencil hardness(Mar) HISO15184-98