Foundry
Gilsonite in Foundry Sand: How It Works
Green sand moulding is the most common way to make iron castings. Carbonaceous additives are added to the…
Knowledge Center
Practical, expert articles on gilsonite in drilling fluids, asphalt, foundry, inks, paints, coatings and waterproofing.
Paving
Gilsonite Paving: Frequently Asked Questions
Do I need special paving equipment? No. Normal pavers and rollers are used. Does gilsonite asphalt look different?…
Paving
Rehabilitation Overlays with Gilsonite Asphalt
When a road reaches the end of its surface life, an overlay restores ride quality and structure. Gilsonite…
Paving
Paving in Desert Conditions with Gilsonite
Desert roads face extreme heat, wind-blown sand and large daily temperature swings. Granular gilsonite is easy to handle…
Paving
Quality Control on Gilsonite Paving Projects
A gilsonite-modified pavement is only as good as the quality control behind it. Keep batch numbers of gilsonite…
Paving
Gilsonite in Specialty Pavements: Bridges and Tunnels
Beyond normal roads, gilsonite-modified asphalt is used in several specialty pavements. Thin, stiff, waterproof surfacing layers protect the…
Paving
Paving Heavy Truck Routes with Gilsonite
Freight corridors, quarry roads and port access roads carry far more trucks than ordinary roads. Their pavements need…
Paving
Pavement Preservation with Gilsonite-Based Products
Pavement preservation means treating roads while they are still in good condition to extend their life at low…
Paving
Gilsonite for Parking Lots and Driveways
Parking lots and driveways suffer from oil drips, sun exposure and turning tires. Gilsonite helps in both the…
Paving
Gilsonite in Chip Seals and Surface Dressing
Chip seals (surface dressing) are a low-cost way to waterproof and restore skid resistance to roads. The binder…
Paving
Can Gilsonite Be Used in Warm Mix Asphalt?
Warm mix asphalt (WMA) is produced at temperatures 20–40°C lower than hot mix, saving fuel and reducing emissions.…
Paving
Gilsonite in Porous and Open-Graded Asphalt
Porous asphalt and open-graded friction courses (OGFC) drain water quickly, reduce spray and lower noise. But their open…
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 |