Bitumen 85/40: Tailored Endurance for Complex Industrial Demands

Product Introduction

Bitumen 85/40 is a specialty oxidized bitumen grade, meticulously developed for high-responsibility industrial projects. Its engineered balance of strength and flexibility allows it to deliver reliable results in environments where conventional bitumen grades fall short. If your operations require a bitumen with high softening point and enhanced adaptability, Bitumen 85/40 stands out as a trustworthy choice for engineers, contractors, and manufacturers worldwide.

Distinctive Attributes

• Softening Point: 85°C – Withstands intense heat and direct sunlight, preventing sag or deformation.

• Penetration: 40 dmm – Offers greater flexibility than lower-penetration grades, reducing the risk of cracking under movement or vibration.

• Outstanding Bonding: Adheres tenaciously to metals, concrete, and construction composites, enhancing system durability.

• Excellent Water & Chemical Resistance: Creates a resilient barrier against moisture, aggressive soils, and industrial chemicals.

• Aging & UV Stability: Maintains physical integrity over time—even after prolonged exposure to weather and mechanical stress.

Strategic Applications for Bitumen 85/40

Bitumen 85/40 is engineered to serve industries that demand a rare combination of hardness and elasticity. Key applications include:

• High-Temperature Roofing

Perfect for multilayer and exposed roofs where the surface faces both extreme heat and structural movement.

• Industrial Damp-Proofing

Prevents moisture ingress in foundations, retaining walls, and tunnels, especially where flexibility helps absorb ground shifts or settlement.

• Pipeline & Structural Coating

Protects steel pipes, storage tanks, and rebar against corrosive elements while flexing with thermal expansion.

• Expansion Joints & Crack Fillers

The slightly higher penetration enables joint fillers to accommodate both heavy loads and recurring movement, making it suitable for bridges, highways, and factory floors.

• Electrical and Battery Compounds

Provides insulation and sealing in cable jointing, battery sealing, and related electrical applications.

Handling & Application Guidelines

• Preparation: Surfaces must be dry, dust-free, and clean for maximum adhesion.

• Heating: Warm Bitumen 85/40 gently (do not overheat) until pourable for brush, mop, or automated application.

• Layering: For best results in roofing and damp-proofing, apply in uniform, controlled layers and allow full curing before covering or loading.

• Maintenance: Inspect periodically; repair with compatible bitumen-based compounds if needed.

Manufacturing Precision

Bitumen 85/40 is produced via advanced oxidation technology, ensuring strict control over both chemical and mechanical properties:

• High-Quality Base Selection: Only select penetration grade bitumen, rigorously tested for composition, is used.

• Controlled Air Blowing: Air is carefully bubbled through hot bitumen at 230–270°C. This process is continuously monitored to lock in the precise softening point and penetration desired for the 85/40 specification.

• Batch Testing: Softening point, penetration, ductility, and chemical stability are checked for every batch before packaging.

Packaging Solutions & Global Logistics

Choose the packaging format that best fits your project’s scope:

• Steel Drums: Standard 180–200 kg drums for secure storage and long-distance transport.

• Meltable Bags: Convenient 25–50 kg packs for easy and direct addition to industrial processes.

• Jumbo Bags: 500–1000 kg bulk bags for major infrastructure and manufacturing operations.

• Custom Orders: Specialized packing can be arranged to meet project-specific or regional regulations.

All shipments are supported by international logistics partners, with documentation and technical data included for every order.

Why Choose Us?

At Basekim, we combine decades of bitumen expertise with state-of-the-art manufacturing and customer-first logistics. Our Bitumen 85/40 is trusted globally for consistent quality, reliable supply, and expert support for even the most demanding projects.

Frequently Asked Questions (FAQ)

Q1: How does Bitumen 85/40 differ from lower-penetration oxidized grades?
Bitumen 85/40 has a higher penetration value, making it more flexible and better suited for areas exposed to frequent movement, vibration, or thermal expansion.

Q2: Is Bitumen 85/40 appropriate for outdoor and exposed structures?
Yes, its high softening point and weather-resistant formulation make it ideal for outdoor use in roofing, paving, and pipe protection.

Q3: What’s the best way to store Bitumen 85/40 on-site?
Store in sealed drums or bags, away from direct sunlight and moisture. Keep at moderate temperatures for maximum shelf life.

Q4: Can Bitumen 85/40 be used for electrical insulation?
Absolutely. Its balanced composition and stability make it suitable for cable sheathing and battery compound applications.

Q5: Does Bitumen 85/40 comply with international standards?
All Bitumen 85/40 from Basekim is produced in accordance with ASTM and EN requirements.