Blown Bitumen 75/35 for Industrial and Construction Applications
Blown Bitumen 75/35 for Industrial and Construction Applications
Oxidized Bitumen 75/35 is a high-quality blown bitumen produced through the controlled air-blowing process of selected petroleum bitumen. It is characterized by a softening point of approximately 75°C and a penetration value of 35 dmm, making it an ideal material for applications requiring excellent heat resistance, durability, and waterproofing performance.
Due to its balanced mechanical properties, Bitumen 75/35 is widely used in roofing systems, waterproofing membranes, expansion joints, pipe coating, electrical insulation, industrial adhesives, and various construction projects. Its outstanding resistance to aging, moisture, chemicals, and temperature fluctuations makes it one of the preferred grades for both domestic and international markets.
At Basekim, we supply premium oxidized bitumen 75/35 manufactured according to international quality standards and available in various packaging options to meet the needs of global customers.
What is oxidized bitumen 75/35?
Bitumen 75/35 is an oxidized (blown) bitumen produced by passing hot air through penetration-grade bitumen under carefully controlled conditions. This oxidation process increases the softening point while reducing penetration, resulting in a harder and more temperature-resistant product.
The designation 75/35 represents:
- 75 – Approximate softening point (°C)
- 35 – Approximate penetration value (0.1 mm)
Compared with penetration-grade bitumen, Bitumen 75/35 offers superior performance in high-temperature environments while maintaining excellent flexibility for industrial applications.
Advantages of Bitumen 75/35
Bitumen 75/35 offers numerous advantages that make it suitable for demanding projects.
Excellent Waterproofing
Its dense molecular structure provides outstanding resistance against water penetration, making it ideal for waterproofing systems.
High Thermal Stability
The elevated softening point allows the material to maintain its integrity even under prolonged exposure to high temperatures.
Strong Adhesion
Oxidized bitumen 75/35 bonds effectively to concrete, metal, masonry, and other construction materials.
Chemical Resistance
It performs well when exposed to mild acids, alkalis, salts, and many industrial chemicals.
Long Service Life
The oxidation process improves resistance to weathering and oxidation, resulting in longer-lasting performance.
Crack Resistance
Properly applied Bitumen 75/35 remains durable under normal structural movements and environmental conditions.
Easy Application
It can be heated and applied using conventional bitumen application equipment.
Technical Specifications of Bitumen 75/35
The following table presents the typical properties of oxidized bitumen 75/35.
| Property | Typical Value |
|---|---|
| Softening Point | 75 ± 5°C |
| Penetration @25°C | 30–40 dmm |
| Flash Point | Above 250°C |
| Solubility in CS₂ | >99% |
| Specific Gravity | Approximately 1.05 |
| Loss on Heating | Within Standard Limits |
| Appearance | Black Solid |
Actual values may vary slightly depending on production batches while remaining within applicable international specifications.
Applications of Bitumen 75/35
The versatility of Bitumen 75/35 makes it suitable for a wide range of industrial and construction uses.
Waterproofing Membranes
Bitumen 75/35 is widely used in manufacturing high-quality waterproofing membranes for:
- Roof waterproofing
- Foundation protection
- Basement waterproofing
- Bridge decks
- Underground structures
Its excellent resistance to moisture ensures long-term protection.
Roofing Industry
Manufacturers use oxidized bitumen 75/35 in roofing felt and roofing membrane production because of its durability and weather resistance.
Expansion Joints
The material provides flexibility while maintaining stability, making it suitable for bridge and pavement expansion joints.
Pipe Coating
Steel pipelines require protection against corrosion and moisture. Bitumen 75/35 creates a durable protective coating that extends pipeline service life.
Electrical Industry
Due to its insulating properties, Bitumen 75/35 is commonly used in electrical cable compounds and insulation materials.
Industrial Adhesives
Many industrial adhesive formulations incorporate Bitumen 75/35 to improve bonding performance.
Protective Coatings
It serves as a protective layer for concrete, metal structures, tanks, and underground facilities exposed to harsh environments.
Manufacturing Process of Oxidized bitumen 75/35
The production of Bitumen 75/35 begins with carefully selected petroleum bitumen.
The manufacturing process includes:
- Heating the base bitumen.
- Passing controlled hot air through the material.
- Monitoring oxidation under strict temperature conditions.
- Continuous quality control.
- Laboratory testing.
- Packaging according to customer requirements.
Every production stage is closely monitored to ensure consistent quality and compliance with international standards.
Packaging Options
Our offers Bitumen 75/35 in multiple packaging formats suitable for international transportation.
Available packaging includes:
- 25 kg Kraft bags
- 50 kg Kraft bags
- Meltable plastic bags
- Carton boxes
- Steel drums
- New steel drums
- Jumbo bags
- Customized packaging upon request
Packaging selection depends on customer preference, shipping destination, and application requirements.
Storage Recommendations
To preserve product quality, oxidized bitumen 75/35 should be stored properly.
Recommended storage conditions include:
- Keep in a dry environment.
- Protect from direct sunlight.
- Avoid excessive moisture.
- Store away from open flames.
- Stack packaging carefully to prevent damage.
- Maintain adequate warehouse ventilation.
Proper storage ensures the product maintains its original characteristics throughout its shelf life.
Safety Precautions
When handling Bitumen 75/35, standard industrial safety practices should be followed.
Personnel should wear:
- Heat-resistant gloves
- Safety goggles
- Protective clothing
- Safety shoes
During hot application:
- Avoid overheating.
- Ensure proper ventilation.
- Prevent contact with skin.
- Follow local safety regulations.
Material Safety Data Sheets (MSDS) are available upon request.
Why Choose Us for Bitumen 75/35?
We are committed to supplying premium-quality oxidized bitumen 75/35 that meets the requirements of customers across international markets.
Our advantages include:
- Consistent product quality
- International standard production
- Competitive pricing
- Flexible packaging options
- Fast worldwide shipping
- Professional export documentation
- Technical support
- Reliable customer service
We work with contractors, manufacturers, distributors, and industrial companies to provide dependable bitumen solutions for projects of every scale.
Order High-Quality Bitumen 75/35
If you are looking for a reliable supplier of Bitumen 75/35, Basekim offers premium-grade products manufactured under strict quality control and supplied with flexible packaging solutions for international markets. Whether your project involves waterproofing, roofing, industrial coatings, or infrastructure construction, our experienced export team is ready to provide competitive quotations, technical support, and timely worldwide delivery. Contact us today to learn more about our Bitumen 75/35 products and customized supply solutions.
Bitumen 75/35 is primarily used in waterproofing membranes, roofing, expansion joints, pipe coating, electrical insulation, industrial adhesives, and protective coatings.
Yes. Its relatively high softening point makes it highly resistant to deformation under elevated temperatures.
Yes. Production is carried out under strict quality control procedures to ensure consistent performance and compliance with international specifications.