Introduction:
Pure polyester is mainly made of polyester resin with TGIC or Primidcuring agent
Feature:
Good mechanical performance and flexible filmGood weatherability and suitable for long time exposed outdoor products.
Coating Film Property:
Properties | Test Method | Value |
Pencil Hardness | GB/T 6739-1996 | ≥ H |
Impact strength test | GB/T 1732-93 | 50 KG cm |
Erichsen cupping | GB 9753-88 | >6mm |
Adhesion | GB/T 9286-1998 | 0grade |
Bend test | GB 6742-86 | 3mm |
Salt spray test | GB/T 1771-91 | 100h no change |
Humid heat test | GB/T 1740-79 | 1000h ≤ 1 grade |
Accelerated light aging test | ASTM G154 | QUV 0.78m/m2 340nm 500h |
Apply Condition:
Pretreatment:Phosphated,Chromated