Description

Bitumens CAS NO 128683-24-9 are a class of complex, high-molecular-weight hydrocarbon mixtures derived from petroleum refining or natural deposits. These materials are essential for their exceptional waterproofing, adhesive, and durable binding properties. They are a fundamental raw material for the construction, infrastructure, and industrial manufacturing sectors, where long-term performance and reliability are critical.

Application

• Road Construction & Paving: As the primary binder in asphalt concrete for highways, airport runways, and parking lots.
• Roofing & Waterproofing: Used in built-up roofing (BUR) systems, roofing felts, and waterproofing membranes for buildings and foundations.
• Industrial Coatings & Mastics: Formulated into protective coatings, pipe wraps, and sealants for corrosion protection and insulation.
• Sound Dampening & Adhesives: Incorporated in automotive underbody coatings, sound-deadening materials, and industrial adhesives.
• Specialty Products: Used in battery sealants, electrical cable filling compounds, and anti-corrosion paints.

Basic Information

Item	Detail
Product Name	Bitumens
CAS No.	128683-24-9
Molecular Formula	Complex mixture of hydrocarbons
Molecular Weight	Varies by grade and composition
Synonyms	Asphalt; Petroleum Bitumen; Road Asphalt; Paving Asphalt; Roofing Asphalt; Asphalt Cement; Bituminous Binder; Asphaltenes (fraction)
EINECS	Contact for details

Quality Control

Our bitumens are produced and tested under stringent quality management systems to ensure batch-to-batch consistency and performance. Key parameters such as penetration, softening point, viscosity, and ductility are rigorously monitored against international standards like ASTM, EN, or AASHTO. A Certificate of Analysis (COA) detailing all relevant specifications is provided with every shipment to guarantee compliance with your project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from sources of heat and ignition. For bulk liquid storage, maintain appropriate heating to prevent solidification and ensure proper circulation to avoid stratification. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Black, viscous solid to semi-solid
Penetration (25°C, 100g, 5s), dmm	Grade dependent (e.g., 40-50, 60-70, 85-100)
Softening Point (Ring & Ball), °C	Grade dependent
Ductility (25°C), cm, Min	>100
Flash Point (Cleveland Open Cup), °C, Min	230
Solubility in Trichloroethylene, %, Min	99.0
Loss on Heating (163°C, 5h), %, Max	0.5
Penetration of Residue (% of original), Min	60

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