
Gilsonite in Refractories and Carbon Products
Carbon-containing refractories and carbon products sometimes use natural asphalts as binders or carbon sources. Refractories such as magnesia-carbon…



Ultra-fine 300–600 mesh low-ash gilsonite for inks, paints, coatings and fast-dissolving formulations.
Micronized gilsonite is ground to 300–600 mesh with low ash content. Its fine particle size gives fast dissolution in oils and solvents and smooth dispersion in coatings, inks, rubber and plastics.
| Property | Typical value | Test method |
|---|---|---|
| Appearance | Dark brown fine powder | Visual |
| Particle size | 300 – 600 mesh | Laser / sieve |
| 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 |
| Specific gravity @ 25°C | 1.04 – 1.06 | ASTM D70 |
| Typical dosage | Ink varnish: 20–40 % in oil. | |
| Packing | 25 kg multi-wall paper bags with PE liner, palletized. | |
Typical values. The final specification is confirmed in the COA of each shipment.

Carbon-containing refractories and carbon products sometimes use natural asphalts as binders or carbon sources. Refractories such as magnesia-carbon…

Gilsonite can be used to colour and modify some plastics. Gilsonite is not a replacement for carbon black…

Gilsonite has been used as a processing aid and extender in rubber. Hoses, belts, mats, seals and some…

Carbon black is effective but can be difficult to disperse. Gilsonite can supply part of the black colour…

Beyond printing inks, gilsonite finds use in several specialty marking products. Deep black colour, good adhesion and solubility…

Refractory coatings protect mould and core surfaces from molten metal. Fine gilsonite can enhance their performance. Micronized gilsonite…
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