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WF-S7033Z Saturated Polyester

1. Compositions

It is made up of saturated polyester resin, xylene etc.

2. The characteristic

Ø          Good plenty,

Ø          Good adhesion with substrate,

Ø          Good flexibility,

3. Application field

It forms polyester amino baking coating by adding melamine resin, suitable for formulating one-component intermediate coating of automobile.

4. Main technical parameters

    Item

Technical index

Solid content, %

70±2

OH content (solid), %

3.3

Acid value (solid), mg KOH/g

≤10

Viscosity(25, bubble pipe), s

5~20

Colorimetric (Fe-Co)

≤2

5. The weight ratio of resin to curing agent

WF- S7033Z: butyl etherized melamine resin = 2~3:1solid

Baking condition130~140℃×20~30min

6. Application example and performance indexes (reference)

Reference formulation

Use WF-S7033Z with 582-2 amino resin to formulate intermediate coating

WF-S7033Z thermosetting polyester resin

33.75

BYK-110 dispersant

0.38

Titanium dioxide

23.10

Precipitation barium sulfate

11.55

Super fine talc

3.85

582-2 amino resin

13.12

WF-F377 fluorocarbon modified acrylate leveling agent (Wuxi Wanbo Coating )

0.20

Xylene

11.25

Propylene glycol ether acetate

2.80

Total

100.00

Paint film properties

Substrate

Tin plate

Baking condition

140℃×30min

Adhesion (cross-cut)

100/100

Hardness

HB

Compact (kg·cm

50

Bending

1mm

Gloss (60°)

45

 

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