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產品展示

TP68 MATT HARDENER ( EPOXY SYSTEM )

2021-02-05     瀏覽次數:2193    

Description

Matt Hardener TP68 is a composed salt of cyclic-amidine and multi-acid. 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 matt surface. It has both gloss decreasing and curing functions.

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Technical Parameters

Item

Test Methods

Specification

Appearance

Visual

Fine White Powder

Melting Range

GB/T617-2006

230-250

Acid value:


460-480

Purity%

GB/T1725-2007

≥99.00

Curing Condition180℃?20-25min 190℃?10-12min 200℃?8-10min

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Application

It is used for pure epoxy resin, epoxy\polyester hybrid powder coatings to achieve coatings with matt surface, excellent mechanic quality and wonderful appearance

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Reference formulation

Item

Epoxy

Epoxy-Polyester

Epoxy Resin E12

110

440

Polyester Resin TP5050


60

Matt Hardener?TP68

9

38

Flowing Agent?TP503

8

10

Moistening Agent?TP701

1

6

Benzoin

1

4

Titanium Dioxide R902


1

Filler(BaSo4 ,CaCo3)

65

1

Carbon Black

0.8

1

Gloss 60°

<5

10-20

Visual inspection

Flow and smoothly

Flow and smoothly

Impact (positive/back flush)

50/40

50/50

Adhesion (cross-cut?method)

100% pass

100% pass

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Notice

Matt Hardener is not as compatible with the resin as it has a high melting point. To avoid this default it’s necessary to distribute them or to make the curing temperature at a higher level. In case of epoxy\polyester hybrid powder coatings, the polyester should be low acidity. Before achieving the ideal gloss and multiple characteristics tests are?needed.



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