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    產品展示

    TP68 MATT HARDENER ( EPOXY SYSTEM )

    2021-02-05     瀏覽次數:2010    

    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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