Asphalt
Mix Design Tips for Gilsonite-Modified Asphalt
Designing a gilsonite-modified mix follows normal Marshall or Superpave procedures, with a few extra points. Test softening point,…
Knowledge Center
Practical, expert articles on gilsonite in drilling fluids, asphalt, foundry, inks, paints, coatings and waterproofing.
Asphalt
Fuel Resistance of Gilsonite-Modified Asphalt
Fuel and oil spills soften ordinary asphalt, causing ravelling and potholes at gas stations, bus depots and airports.…
Asphalt
Gilsonite Asphalt for Airports and Heavy-Duty Pavements
Airport aprons, container terminals and industrial yards carry very heavy, slow or stationary loads. These pavements need extra…
Asphalt
Gilsonite Asphalt for Hot-Climate Roads
In the Middle East, North Africa and other hot regions, pavement temperatures can exceed 70°C in summer. Standard…
Asphalt
Gilsonite in Mixes with Recycled Asphalt (RAP)
Recycled asphalt pavement (RAP) saves money and resources, but its aged binder can make mixes stiff and brittle.…
Asphalt
Gilsonite and Superpave Performance Grades (PG)
The Superpave performance grade system describes binders by the temperatures at which they perform. For example, PG 64-22…
Asphalt
Gilsonite vs. SBS Polymer for Asphalt Modification
SBS (styrene-butadiene-styrene) polymer and gilsonite are both used to improve asphalt binders, but they work differently.
Asphalt
Improving Rutting Resistance with Gilsonite
Rutting — permanent grooves in the wheel paths — is a common failure in hot climates and on…
Asphalt
Gilsonite Dosage in Hot Mix Asphalt
How much gilsonite should you add to hot mix asphalt (HMA)? The answer depends on the base binder,…
Asphalt
Wet Process vs. Dry Process: Adding Gilsonite to Asphalt
There are two main ways to add gilsonite to asphalt mixtures. Each has advantages. Gilsonite powder is blended…
Asphalt
How Gilsonite Modifies Asphalt Binder
Asphalt binder must be soft enough to resist cracking in winter and stiff enough to resist rutting in…
Drilling Fluid
Gilsonite in Workover and Completion Fluids
Workover and completion operations use fluids that must control the well without damaging the reservoir. Gilsonite can play…
Our Products
| Product | Particle size | Softening point (R&B) | Typical dosage | |
|---|---|---|---|---|
| Gilsonite Lump | 0 – 50 mm (custom) | 150 – 220 °C | Depends on application. | Spec · MSDS · COA |
| Gilsonite Granular | 1 – 5 mm | 150 – 200 °C | Asphalt: 4–12 % by weight of binder. | Spec · MSDS · COA |
| Gilsonite Powder | 100 – 200 mesh | 150 – 220 °C | Drilling 2–8 lb/bbl · asphalt 4–12 % of binder · foundry 0.3–1.0 % | Spec · MSDS · COA |
| Micronized Gilsonite | 300 – 600 mesh | 150 – 180 °C | Ink varnish: 20–40 % in oil. | Spec · MSDS · COA |
| Drilling Fluid Grade Gilsonite | 75 – 200 µm | 160 – 220 °C (grades) | 2 – 8 lb/bbl | Spec · MSDS · COA |
| Sulphonated Asphalt | — | — | 2 – 6 lb/bbl | Spec · MSDS · COA |
| Cementing Grade Gilsonite | 75 – 200 µm | 160 – 220 °C | 5 – 15 % BWOC | Spec · MSDS · COA |
| Asphalt Modifier Grade Gilsonite | Powder ≤ 200 mesh / granular 1–5 mm | 150 – 200 °C | 4 – 12 % by weight of binder | Spec · MSDS · COA |
| Foundry Grade Gilsonite | 100 – 300 mesh | 150 – 200 °C | 0.3 – 1.0 % (iron) | Spec · MSDS · COA |
| Ink & Paint Grade Gilsonite | 200 – 600 mesh | 150 – 180 °C | Ink varnish: 20–40 % in oil | Spec · MSDS · COA |
| Coating & Waterproofing Grade Gilsonite | ≤ 200 mesh | 150 – 200 °C | 5 – 25 % of compound | Spec · MSDS · COA |
| Sealer & Filler Grade Gilsonite | ≤ 200 mesh | 150 – 180 °C | Sealer: 15 – 35 % | Spec · MSDS · COA |