Saturated carboxylated polyester resin

Very good storage stability Good flow Outstanding mechanical properties Excellent outdoor durability

Xianjing P2303-3

Saturated carboxylated polyester resin

 General Description

Xianjing P2303-3 is a medium reactivity polyester resin, designed

for 93:7 TGIC curing powder coatings. Coatings based on it exhibit:

· Very good storage stability

· Good flow

· Outstanding mechanical properties

· Excellent outdoor durability

 

Product Specifications

Property	Range	Test Method
Appearance	Pale granules	Visual
Acid value, mgKOH/g	30~36	ASTM D1639
Viscosity @ 200°C ,mPa.s	4000~6000	ASTM D4287
Gardner Color(50% solution)	max.2	ASTM D1544
softening point,°C	100~120	ball and ring method

 

Other Data

Property	Range	Test Method
Glass transition temp.,°C	approx. 66	DSC

 

Packaging

· 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 kept

in closed containers in a dry place at temperature below 30°C .

Avoid exposure to direct sunlight.

Starting Formulation

Component	Weight,%
P2303-3	59.6
TGIC1)	4.5
Titanium dioxide2)	34.5
Flow control agent3)	1.0
Benzoin	0.4

1) Araldite®PT 810, Huntsman Advanced Materials

2) Ti-pure®R-960, DuPont Titanium Technologies

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:25min.@180°C;12min@200°C

Film Properties

Test item	Result	Test Method
Film thickness,μm	Approx.60	ASTM D1186
Gloss@60°,%	Min.90	GB/T9754-88
Direct/reverse impact, inch lbs	50/50	GB/T1732-93
1/8”Conical mandrel	Max.3	GB/T6742-86
Adhesion(cross cut)	0	GB/T9286-98
Pencil hardness(Mar)	H	ISO15184-98

Saturated carboxylated polyester resin