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Polyurethane Powder Coating

Introduction:

The powder coating based on hydroxyl polyester resin with excellent flow, chemical resistance, weathering durability and petroleum protection is designed for the application where chemical resistance is highly required,

 Types Available:

 

Full-Glossy(80%), Semi-gloss (50-80%), semi-matt(20-50%),  matt(20%) and special-effect types.

 Applications:

it is particularly used for high chemical resistance purpose, such as Automotive, Motorcycle, gas refueller and agricultural machinery.

 Properties:

Density

1.4-1.7

Particle size

100% <100um

Horizontal fluidity

24-27mm

 

 Curing Condition:

 

Type:  220癈 (Working temperature), 15 min.

 Cured Membrane Properties:

 

Sample: 0.8mm cold rolled phosphated SS sheet.  

 

Mechanical properties

Item

Typical measured value

Method

Impact strength

50cm*kg.

GB/T1732-93

 Cupping test

8mm

GB/9753-88

Adhesion (CROSS CUT)

0 Grade

GB/T9286-88

Flexural test

2mm  

GB/T6742-86

Pencil hardness

1H-2H  

GB/T6739-86

Heat resistance

150癈, 24hr.

Color Difference0.3-0.4

Artificial weathering

Cycle of 60℃/8hrs UV + 50℃/4hrs condensation, 500hrs totally

Gloss retention: 50%

Color Difference3.5

Corrosion resistance

Salt spray resistance

More than 500hr

GB/T1771-91

Humidity resistance

More than 1000hr

GB/T1940-79

         

 

 Average Spread Rate:

9-12M2/Kg, thickness 60-80um (calculated as 100% powder).

 Packaging:

PE lined paper box. Net weight 20Kg.

 Storage:

Store below 35℃ in dry, venting, clean indoor, keep away from fire, heating, and with coverage. The powder can be stored stably for 12 months. When exceeding 12 months, it must be tested before use.  

 Precaution:

This powder coating is a non-toxic product. The inhalation should be avoided in handling. The operators are suggested to equipped with dust mask and glasses. If possible, avoid a prolonged contact with skin.

Others:

This Technical Data Sheet is only for customers’ reference. The specific data are tested in a certain condition and represent the classic characteristics of this product.

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