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Gilsonite In Ink & Paints

Gilsonite Resin is widely used as the primary carbon black wetting agent for black news inks.
Gilsonite, "Natural asphalt, Natural Bitumen" Resin competes advantageously with petroleum-based hydrocarbon resins, phenolic resins and metal resinates, all of which it can complement or replace to various degrees. Various concentrations of our Gilsonite Resin are used to manufacture law-rub-off news inks with superior gloss and tack properties. Special grades of Gilsonite called Selects are also standard ingredients in black ink formulations and are used as additives in asphaltic paints and varnishes. For Paint , If added to asphaltic paints and varnishes, Gilsonite's unique qualities improve their roughness, gloss and chemical and weather resistance.Printing Inks, Gilsonite, "Natural asphalt, Natural Bitumen" is an important cost-effective ingredients in the manufacture of high quality vehicles for dark printing inks.

Gilsonite Grade PI-300

Principal Applications

Printing Inks ( Gravure, Headset, New sink )
Paints and Stains
Protective Coatings


Viscosity (25°C, 30% solids, Magie 470) 600 - 1800 cPs
Softening Point (ASTM E28-92) 180-205°C
Ash (ASTM D-271-70 M) <3% Typical
5% Max. Guaranteed
Moisture (AGC Method) <1.5% Typical
2% Max. Guaranteed
Penetration (25°C, 100 gm, 5 sec.) 0
Flash Point (COC) 400°C; 700°F
Sulfur 3%
Specific Gravity 1.04
Acid No. <3
Color In Mass Black


                         Typical Particle Sizing (ASTM (E11-70))
  % Retained(Cumulative)   
Small Lump  Pulverized
+ 4 mesh 0.2 --
+ 10 mesh 3 --
+ 35 mesh -- 0.2
+ 65 mesh 55 2
+ 100 mesh -- 8
+ 150 mesh 77 --
+ 200 mesh -- 35

We can Provide any particle Size according to customer requirements.


Gilsonite® resin Selects PI-300 Grade is readily soluble without heating in aromatic solvents (Benzene, Toluene, Xylene) and in most chlorinated solvents. It is also soluble without heating in aliphatic and low aromatic solvents (VM&P and other Napthas, Ink Oils and Mineral Spirits), but mixing time is longer. Without heating, the pulverized grade is recommended.

 Films developed from Selects PI-300 have a very dark color with little bronzing effect. Solutions do not thicken appreciably upon aging. Selects PI-300 Grade is compatible with drying oils, rosins, hydrocarbon resins, elastomers, asphalts, and waxes for specialty applications. It has limited solubility in most alcohols and ketones.


Gilsonite, "Natural asphalt, Natural Bitumen" Selects PI-300 is available in 50 lb. and 25 kilo net multi-ply paper bags, which may be palletized and stretch wrapped. It is also available in bulk loaded trucks and in a variety of bulk bag sizes.


Gilsonite, "Natural asphalt, Natural Bitumen" is a naturally occurring hydrocarbon. There is no known history of dermatitis, lung disease or other health problems associated with handling of Gilsonite as supplied. Dusts are subject to combustion. Normal precautions used with flammable materials apply.

Gilsonite For Ink & Paints PDF