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Gum Rosin Lumps, Honduran Grade Wg/Ww

colophony or gum Pine rosin derived from Pinus Oocarpa in Honduras.
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HROSIN - Pine Rosin

HROSIN is colophony or gum derived from pine tree species known as Pinus Oocarpa in Honduras. It is produced by heating fresh liquid resin to vaporize the volatile liquid components. It is semi-transparent pine rosin and varies in color from dark yellow to light brown.

HROSIN contains about 10% natural unsaponifiable matter that provides anticrystalline properties to the rosin and its compounds.

General Information:

  • Main applications include adhesives, chewing gums, coatings, cosmetics, linoleum, paints, printing inks, resins, rubber, sizes, varnishes.


Color Grade USDAWG/WW
AppearancePale Yellow, Transparent
Softening Point (Ring & Ball)66 – 72°C
Acid Number (mgKOH/g)147 – 155
Specific Gravity @ 25°C1.06 – 1.08
Refractive Index 20°C1.540
Unsaponifiable Matter7 – 12.1%
Toluene Insolubles0.01% Max.
Iron Content15 PPM Max.
Ash Content0.01% Max.
Volatiles MatterNegligible
Flash Point °C (COC)Above 204°C

Similar Products:

  • Pine Rosin
  • Colophony Gum
  • Pine Pitch
  • Shellac
  • Damar Resin

Note: These are similar products, and each product is different, so research is required to find the best fit for your needs.

  • Availability: In Stock
  • Model: HROSIN
  • Brand: ChemicalStore