Polyurethane series powder coating

Polyurethane series powder coating
Product description
   The basic materials of this series product are saturated hydroxide radical polyester resin and isocyanate firming agent. It is also a kind of polyurethane thermosetting powder coating with super weatherproof, high corrosion resistant, high chemical solvent resistant and high nick resistant characters.
Powder properties
Density
   1.2~1.8g/cm3
Granularity
   The general diameter of particle30~38um，<64um particle proportion>99%, or customizing
Volatility
   <1%
Softening point
   60~95℃ changing according to different color luster
Fluidity
  It has good fluidity and is easy to transportation. The fluidity index can be got from our local liaison office.
Storage stability
   <30℃Storage,1 year
Film performance
Appearance
   Eyeballing   Many panel effects
Luster60°
   GB/T9754-88   All lusters from 2%～100%
Impact
   GB/T1732-93   1Kg*50cm
Bending
   GB/T6742-86   ∮2mm
Concave
   GB/T9753-88   >6mm
Adhesive force
   GB/T9286-88   0 grade
Rigidity
   GB/T6739-86   >H
Poaching
   96~100℃Distilled water2hours   Nondiscolouring,no foam formation
Acid resistant
   5%H2SO4   1 year   Nondiscolouring,no foam formation
  48%HCL   1 month
  5%HAC   1 year
  5%H3PO4   1 year
Alkali resistant
   5%NaOH   30 days   Slightgloss losing
  5%NaCO3   30 days
Solvent resistant
   Acetone   50 times   Nondiscolouring,no foam formation
  Dimethylbenzene
  Butanone
  Gasolene
  Alcohol
  Ethyl acetate
Thickness of pinhole
   When the film thickness is more than 110um, it is easy to produce pinholes. If the spraying thickness is needed more than 110um, please tell us in advanced.
Salt spray resistance
   GB1771-91   1000hours  No change of film, single-side corrosion of underlining is lower than 2mm. This experiment used chromic aluminum panel with the film thickness of 100um.
Muggy resistant
   GB1740-79   1000hours Slight gloss losing of film，<1 grade
Light fastness

ASTNG53-88 QUV UV313 cycle 4hr UV 60℃

4hr condensation 50℃
Execution conditions
Pre process
Steel
Parkerising treatment
  Notice: the pre process should be inspected once in 2 hours, and the inspecting methods should be according to the medicine suppliers’ requirements or our company’s pre process introduction.
Spraying
   This series is fit for the following spraying methods: static spraying; friction static spraying; and some other spraying methods (requiring in advanced).
  Notice: the pre process should be inspected at least once in 2 hours, and the inspecting methods should be according to the customers’ requirements or our company’s film test methods.
Solidifying conditions
  200°C/10minutes, or customizing140°C/30minutes,160°C/20minutes,180°C/15minutes.
It is fit for the following solidifying methods: electric heating, radiating heating, infrared heating, fueling or gas-firing. (Tell us in advanced) Notice: Periodically inspecting
Notice: Periodically inspecting
Others
Application area
  Super weatherproof, high corrosion resistant, high chemical solvent resistant and high nick resistant environment, such as air-conditioning, furniture, etc.
Special effect
   Super weatherproof, high corrosion resistant, high chemical solvent resistant and high nick resistant,etc. environment. Many effects, such as wrinkle, metal, color blended, etc. for special surface effect coating , please refer to our company’s use guideline..
Packing and transportation
   20kg in paper skin lined with polyethylene, non-dangerous goods, transported by all kinds of ways, avoiding sunlight, avoiding damp and hot and avoiding in touch with chemical goods.
Safety
   It does not have TGIC.Please refer to our company’s operation guideline, and ask our company’s Safety Technology Report from our liaison office.

The special coating for children’s toys should tell us in advanced, because it should be produced in some special technologies to guarantee that there are no hazard factors in our products.