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WF-H5516 Hydroxyl Acrylic Resin

1. Compositions

It is made up of hydroxyl acrylic resin, xylene, butyl acetate etc.

 

2. The characteristic

Ø          Quick dry,

Ø          Good sanding,

Ø          High hardness

 

3. Application field

It forms two-component paint which cures at normal temperature by adding TDI type poly-isocyanate composition, compatibility is good with primer and finish paint, and pigment wetting good, suitable for intermediate paint. Mainly used for industry coating such as engineering machinery coating, Locomotive coating etc.

4. The main technical parameters

    Item

Technical Index

Solid content (150℃×2hr), %

55±2

OH content (solid), %

1.6

Acid value (solid), mg KOH/g

4±2

Viscosity (25℃, bubble pipe), s

25~40

Colorimetric (Fe-Co)

≤1

5.        Application examples and property index (reference)

Reference formulation of intermediate coating

Component A

WF-H5516 hydroxyl acrylic resin

36.00

BYK-110 dispersant

0.30

Titanium dioxide, rutile

15.12

Precipitation barium sulfate

3.02

Talc

12.10

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

0.20

Xylene

29.10

Propylene glycol ether acetate

4.16

Total

100.00

Component B

Desmodur  L75

6.70

Butyl acetate

3.30

Total

10.00

Component A/component B=10/1

 

Paint film properties

Substrate

Tinplate

Curecondition

80℃×30min

Adhesion (cross-cut)

100/100

Hardness

2H

Compact (kg·cm)

50

Bending

1mm

Tack free (min)

10

Hard dry (h)

5

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