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      產品展示

      TP68 MATT HARDENER ( EPOXY SYSTEM )

      2021-02-05     瀏覽次數:2107    

      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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