Polyester Back Paint

一、Component

Polyester resin、amine resin、pigment、solvent、stuffing、addition agent and so on。

二、Performance and Characteristics

This product can have a quickly roller construction and it with the advantage of good levelability, excellent adhesive attraction, excellent flexibility and moldability. It’s mainly used in large scale precoating coil material production line.

三、Technical target

Density：1.1-1.4

Fineness：≤25um

Viscosity：80-120（Paint four cup，23℃）

The color and appearance of paint film：level off lines of smooth，△E≤0.5

Luster：20-90°

T bend：≤3T（ASTMD-3794）

Cupping：≥6mm

Resistance MEK wiping（no primer）≥50 times

Resistance MEK wiping（with primer）≥100 times

Shockproof：≥9J (ASTMD-2794)

Pencil hardness：≥2H

The thickness of dry film：10±2um

Curing temperature（Board temperature）：224-241℃

Adaptive line speed：80-150 meter/min

四、General description of construction

1.The placode can choose hot Dip Galvanized Sheets, SuperDyma, cold-reduced sheet and aluminum plate。

2.Preliminary treatment process flow：decoiling- shearing- closing- pretreatment- drying- revolve back paint- drying- cooling-packing。

五、Package

1. Package：galvanization drum，Net weight：230kg.

2. The shelf life is 6 months.