Oxidized Bitumen 75/35 (Blown Asphalt 75/35) – Flexible Grade Bitumen for Specialized Waterproofing and Industrial Applications
Description:
Oxidized Bitumen 75/35 is a softer, highly flexible grade of blown bitumen produced through controlled air-blowing process. Characterized by its lower softening point and higher penetration value, this grade is specifically engineered for applications requiring superior adhesion and pliability in moderate to cool temperature conditions. The unique properties of 75/35 make it particularly suitable for projects demanding enhanced workability and long-term flexibility.
Uses:
Advanced Waterproofing Systems: Roofing membranes, waterproofing felts, and damp-proof courses
Infrastructure Maintenance: Bridge deck sealants, pavement crack fillers, and expansion joint compounds
Industrial Protective Coatings: Pipe wrapping, steel structure protection, and tank base sealants
Specialty Adhesives: High-performance bonding agents for construction materials
Acoustic and Vibration Damping: Soundproofing underlayments and anti-vibration mats
Packing & Shipping:
- Standard Packaging:
- 25 kg multi-layer kraft paper bags with inner polyethylene lining
- 180 kg new steel drums (UN-approved)
- 1000 kg jumbo bags with moisture barrier
- Bulk Options:
- Meltable blocks on pallets (custom sizes available)
- Bulk liquid shipments in heated tankers
- Global Shipping:
- 20ft and 40ft containers (packed according to IMDG regulations)
- Temperature-controlled transport available
- Worldwide delivery with proper documentation
Product Specification (Oxidized Bitumen 75/35):
| Property | Specification Range | Test Method |
| Softening Point (°C) | 70-80 | ASTM D36 / EN 1427 |
| Penetration at 25°C (0.1mm) | 30-40 (100g, 5s) | ASTM D5 / EN 1426 |
| Ductility at 25°C (cm) | ≥ 30 | ASTM D113 |
| Loss on Heating (%) | ≤ 0.8 | ASTM D6 / EN 13303 |
| Flash Point (°C) | ≥ 230 | ASTM D92 / EN ISO 2592 |
| Solubility in CS₂ (%) | ≥ 99.5 | ASTM D4 / EN 12592 |
| Ash Content (%) | ≤ 1.0 | ASTM D482 |
Quality Assurance & Compliance:
- Certifications: ISO 9001:2015 Quality Management System
- Testing: Full batch testing with Certificate of Analysis available
- Regulatory Compliance:
- Meets ASTM D312 (Roofing Asphalt) specifications
- Complies with EN 13304 for oxidized bitumen
- REACH and RoHS compliant
Special Features:
- Excellent cold weather performance (down to -20°C)
- Superior adhesion to various substrates
- UV-resistant formulations available upon request
- Can be modified with polymers for enhanced properties
