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TP55 MATT HARDENER ( HYBRID SYSTEM )

2021-02-24     浏览次数:135    

Description

Matt Hardener TP55 is the salts of poly-carboxylic acid with cyclic amidine. It utilizes the two different reaction rates of group in molecular structure, and during the curing process, it generates non-uniform shrinkage then forms the matte surface. It has both gloss decreasing and curing functions.

 

Technical Parameters    

Item

Test Method

Specification

Appearance

Visual

Fine White Powder

Melting Range(°C)

GB/T617-2006

210-250

Acid value:


410-430

Solid Content%

GB/T1725-2007

≥99.00

Curing condition: 180°C 1520min190°C 1015min200°C 1012min

Dosage:Epoxy Resin E12: Matt Hardener TP55 = (8-10):1

 

Reference Formula

Item

Matt Hardener TP68

Matt Hardener TP55

Polyester Resin

---

70

Epoxy Resin E-12

300

230

Matt Hardener  

30

20

Flowing Agent TP88

5.6

5.6

Moisture Agent TP701

5.0

5.0

Matt BaSO4

210

210

Carbon Black

3.6

3.6

Adhesive Force (%)

100

100

Gloss (%)

≤5

≤20

Appearance

Flow and smoothly

Flow and smoothly

 

Application

1. TP55 can be applied in epoxy powder system to generate the strong matte effect, terrific leveling performance and stable comprehensive properties. It can be used for pure epoxy and epoxy/polyester hybrid powder system as a hardener, making the coating with super matte surface, excellent mechanical property and good reproducibility characteristic.

2. TP68 can be widely used in epoxy resin or epoxy polyester mixed powder coatings, but can achieve a stable semi-gloss level in mixed powder coatings.

TP55 is suitable for semi-gloss level (60 ° )25 ~ 40% in both epoxy and hybrid powder coatings.

3. Due to TP55 has a higher melting point, it’s very important to evenly disperse it in formulation. The users can suitably increase the extruding temperature to make sure the good dispersion (don’t exceed 110°C).



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