Description

Gilsonite is a naturally occurring, solid hydrocarbon resin classified as an asphaltite. This unique mineral is valued for its high purity, consistent properties, and ability to enhance the performance of various industrial formulations. It serves as a critical performance additive and binder in sectors demanding high carbon content, thermal stability, and reinforcing characteristics. Key industries that utilize this material include foundry coatings, asphalt modification, oil & gas drilling fluids, and ink & paint production.

Application

• Foundry Sands & Coatings: Acts as a carbon raiser and lustrous carbon additive in green sand molds and core washes to improve casting finish and reduce burn-in defects.
• Asphalt & Road Construction: Used as a performance-enhancing modifier for asphalt pavements and roofing materials to increase durability, stiffness, and resistance to rutting and thermal cracking.
• Oilfield Drilling Fluids: Functions as a high-temperature fluid loss control additive and shale stabilizer in water-based and oil-based mud systems.
• Inks & Paints: Imparts gloss, hardness, and quick-drying properties in specialty printing inks, industrial paints, and aluminum coatings.
• Chemical & Adhesive Industries: Serves as a tackifier and reinforcing agent in adhesives, sealants, and rubber compounds.
• Carbon & Graphite Products: Used as a binder and filler in the manufacture of carbon electrodes, refractory bricks, and battery components.

Basic Information

Product Name	Gilsonite
CAS No.	12002-43-6
Molecular Formula	Complex hydrocarbon mixture
Molecular Weight	N/A (Natural mineral blend)
Synonyms	Uintaite; Asphaltite; Natural Asphalt; Mineral Resin; Gilsonite Resin; North American Asphaltum; Hard Hydrocarbon
EINECS	234-442-0

Quality Control

Our Gilsonite is sourced from select mines and processed to meet stringent quality parameters for consistency and performance. Each batch is tested against key specifications including softening point, ash content, solubility, and fixed carbon percentage. We provide full traceability and Certificates of Analysis (COA) are available upon request to ensure compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from sources of heat, sparks, and open flame. The material is stable under normal storage conditions.

Specification

Item	Specification
Appearance	Black, shiny solid lumps or powder
Softening Point (Ring & Ball)	140 - 200 °C
Ash Content	≤ 5.0 %
Solubility in CS₂	≥ 90 %
Fixed Carbon	≥ 75 %
Moisture Content	≤ 1.0 %
Specific Gravity @ 25°C	1.03 - 1.10

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.