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Gilsonite in Paints: FAQ
What colour does gilsonite give? Black in thick films, brown in thin films. Which solvents dissolve it? Aromatic…
Gilsonite in Paints and Coatings
Gilsonite in paints and coatings: solubility, black enamels, primers, roof and steel coatings.
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Gilsonite in Marine and Ship Coatings
Bituminous coatings have long been used on ship hulls, ballast tanks and marine structures. Modern specifications often require…
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Gilsonite Coatings for Concrete and Masonry
Concrete and masonry below ground need protection from water. Water resistance, adhesion to porous surfaces and durability.
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Testing Gilsonite for Paint Applications
Before using a new gilsonite grade, test it in your formulation. Ash, softening point, moisture and particle size…
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Heat-Resistant Black Coatings with Gilsonite
Gilsonite's high softening point helps black coatings resist softening in hot conditions. For very high temperatures, silicone-based coatings…
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Gilsonite in High-Solids and Lower-VOC Coatings
Regulations push coatings toward lower volatile organic compounds (VOC). Gilsonite needs solvent to dissolve, so formulators must balance…
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Gilsonite as a Partial Replacement for Black Pigment
Carbon black is effective but can be difficult to disperse. Gilsonite can supply part of the black colour…
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Gilsonite-Modified Alkyd Paints
Alkyd resins are widely used in industrial paints. Gilsonite can modify them for black and dark coatings. Gilsonite…
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Making Gilsonite Varnish for Paints
A gilsonite varnish simplifies paint production. 30–50% solids in solvent. The varnish can be blended with alkyds, oils…
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Coatings for Tanks and Steel Structures with Gilsonite
Storage tanks, bridges and steel structures need durable, economical coatings. Improves film hardness, gloss and chemical resistance in…
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Gilsonite Roof Coatings
Black roof coatings protect and renew asphalt and metal roofs. Higher heat resistance and a harder, less tacky…
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Gilsonite in Automotive Underbody Coatings
Vehicle underbodies face stones, water and road salt. Bituminous underbody coatings with gilsonite provide tough protection.
Recommended product
Data sheet
Ink & Paint Grade Gilsonite
| Property | Typical value | Test method |
|---|---|---|
| Appearance | Dark brown–black powder | Visual |
| Softening point (R&B) | 150 – 180 °C | ASTM D36 |
| Ash content, max | 3 % | ASTM D3174 |
| Moisture, max | 1 % | ASTM D95 |
| Solubility in toluene, min | 99 % | ASTM D2042 |
| Particle size | 200 – 600 mesh | Sieve |
| Typical dosage | Ink varnish: 20–40 % in oil | |
| Packing | 25 kg paper bags with PE liner, palletized. | |
Typical values. The final specification is confirmed in the COA of each shipment.