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    2. Welcome to Hengshui Zehao Chemicals Co., Ltd.
      Advisory hotline +86 318-8015158

      Contact us

      Mobile: +86 18330856252
      Sales: +86 318-7922977
      Sales: +86 318-8015159
      Sales: +86 318-8015160
      Finance: +86 318-8015158
      Fax: +86 318-2811996
      Address: Rubber industry district, Hengshui City, Hebei Province, China

      Product Center Location: Product Center >Gum resin

      Gum resin



      Gum resin also named Colophony, it is a kind of natural resin, that composed of various kinds resin acids, and having special physical and chemical properties.

      it is an important raw material for the production of paper, coatings, inks, rubber, soaps, electronic industrial products, food grade ester gum, rosin ester resins etc.


      Specification:

      Grade X WW WG N M K
      Appearance Transparent Solid
      Color slightly yellow pale yellow yellow deep yellow yellow brown yellow red
      Correspond to the Standard Glass Color Piece of Rosin
      Softening Point
      (R&B),°C, min
      76 75 74
      Acid Value,
      (mgKOH/g), min
      166 165 164
      Alcohol insoluble
      Substance ,(%) , max
      0.03 0.03 0.04
      Unsaponifiable
      matter, (%) ,max
      5 5 6
      Ash, (%) ,max 0.02 0.03 0.04

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