GLB (Global Leading Bitumen ) Gilsonite Ink and paint grade is a quick drying high gloss and corrosion resistant asphalt enamel. It is using for fully resistance to water, acids, alkalies, electrolysis and natural elements.
Gilsonite powder 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 Gilsonite powder have a dark color with little bronzing effect. Solutions do not thicken upon aging. Gilsonite powder is compatible with drying oils, vegetable oils, rosins, hydrocarbon resins, elastomers, asphalts, and waxes for specialty applications. It has limited solubility in most alcohols and ketones.
Paint and Coat
Gilsonite’s applications in the bituminous paint, coatings and wood stain industries. It contains an outline which highlights Gilsonite’s advantages in these markets, plus sample formulations, mixing instructions, and product performance data, etc. In the paint applications, Gilsonite is usually used in combination with bitumen (asphalt). In most cases, if Gilsonite is used alone, the final paint will be very hard and brittle after drying. If normal straight-run bitumen is used alone, the finished paint is too soft and tacky. Therefore, a combination of Gilsonite and bitumen is used to achieve the desired hardness (penetration) and drying time of the finished paint.
In addition to imparting hardness to the paint, Gilsonite is also increasing the paint’s: (1) adhesion; (2) gloss; (3) chemical resistance; (4) water resistance; and (5) body. For hardness, Gilsonite has a zero (0) penetration (at 25Â°C; 100 gm, 5 sec.) compared to the 60-70 pen, 80-100 pen or softer bitumens commonly available from petroleum companies or asphalt manufacturers.
Approximately 90% of all bitumen is used for road construction and these hardness grades are acceptable for that purpose. However, they are too soft by themselves for the manufacture of paint and surface coatings which require hardness values around 5 penetration for acceptable paint drying.
Paint films composed of bitumen alone are tacky if the penetration is more than 10, and are brittle if less than 4. Air-blowing soft, road paving bitumens down to 5 pen is a common practice but this is an advanced aging process which damages the bitumen. Air-blowing upsets the colloidal balance of the bitumen which can lead to films of oil or wax exuding from the bitumen. If these films exude to the surface of the paint, the result is a loss of gloss.
If these films migrate to the interface of the substrate, the result is a loss of adhesion which causes the paint to peel. Other disadvantages of using air-blown bitumen in paint formulations include gelling with certain solvents and large viscosity increases during the mixing of the paints or during their storage. Therefore, rather than air-blowing a soft bitumen down to 5 penetration, that same soft bitumen may be transformed into a hard bitumen by modifying it with Gilsonite, avoiding the disadvantages of oil/wax migration and gelation.
For example, adding about 35 to 50% Gilsonite to an 80-100 penetration bitumen will transform it to 5-10 penetration, suitable for paint making.
For painting metal, masonry, and wood surfaces, inside and out where a corrosion resistance black protective coating is desired.
Excellent for use on:
! Underground Pipelines
! Storage Tanks
! Automotive Undercarriage
! Battery Cables
! Wood Surfaces
! Masonry Surfaces
! Eave troughs