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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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