Fluorocarbon Coatings

Kyanr 500 or Hylar 500, a polyvinylidence fluoride resin (PVDF), used in paint formulators as the basic component in producting protective finishes for aluminuim and galvanized steel. The product's remakable ability to resist fading, cracking, corrosion, acid rain and attacks from all types of airborne chemicals is due to the molecular structure of PVDF. The carbon-fluorine bond, the strongest molecular bond know, is the key to Kynar 500 resin's exceptionally high thermal, chemical and ultraviolet light resistance properties. The test result in coating has been in use over twenty-five years and meet the requirements of AAMA2605 voluntary specifications for High Performance Organic Coatings on Architectural Extrusions and Panels.

1. Alkaline degreasing

2. Alkaline degreasing

3. Water cleaning

4. Alkaline etching

5. Water cleaning

6. Acidic cleaning

7. Water cleaning

8. Chromate conversion

9. Water cleaning

10. Pure water cleaning

Note:
Above multi-stage system to meet ASTM D-1730-67, type B, method 5 or 7, and conform with ASTM B-449-67 section 6, class 1.

B. Spraying

1. Applied by automatic electrostatic gun to spray Flash Primer Coated with optimal film thickness of 5-8 microns.

2. Applied by automatic electrostatic gun to spray Colour Coated with optimal film thickness of 20-30 microns.

3. Applied by automatic electrostatic gun to spray Top Clean Coated

(3 coated only) with optimal film thickness of 10-15 microns at the baking time of 20 minutes at 250 degrees Celsius.

C. Quality Check And Packing