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Description of Bitumen 105/35
Oxidized Bitumen 105/35 is a hard, heat-stable blown asphalt grade with a high softening point and medium–low penetration. It is engineered for demanding construction and industrial applications that require strong adhesion and durable waterproofing. As a bonding compound or hot-melt adhesive, it performs reliably on preformed sheets and diverse substrates.Applications of Bitumen 105/35
- Roofing and waterproofing membranes (hot-applied systems)
- Adhesives, mastics and sealants for building components
- Pipe coating and corrosion protection
- Road maintenance (crack sealing and bonding layers)
- Paints, primers and asphalt-based protective coatings for metals
- Automotive underbody coating for waterproofing and noise reduction
- Chemical and textile industry uses where heat resistance is needed
Key Features of Grade 105/35
- High softening point with reliable performance in hot climates
- Strong adhesion and cohesive strength in hot-applied applications
- Thermal stability across multiple heating/cooling cycles
- Good waterproofing and durability for industrial service
Storage and Handling
Store under cover, away from direct sunlight and rain, on level pallets. Ensure surfaces are clean, dry and free from loose particles before application. Heat gradually with indirect heating; follow TDS/SDS to avoid thermal degradation and ensure safe handling. Under proper storage, long service life is achievable.Packing Options
Supplied in meltable plastic bags (~25 kg), kraft/carton bags on pallets, steel drums, and export bulk (bitutainer/tanker). Grade numbers indicate typical softening point (°C) and penetration (dmm): 105/35 ≈ softening point ~105 °C and penetration ~35 dmm. Products are tested against relevant ASTM / EN methods.Guarantee and Quality Assurance
Each shipment is verified by in-house QC with batch test reports; international third-party inspection during loading can be arranged. Conformity to applicable ASTM methods and EN 13304:2009 is ensured for consistent performance.Specifications
| Property | Test Method | Unit | Specification |
|---|---|---|---|
| Specific Gravity @ 25 °C | ASTM D70 | — | ≈ 1.05 |
| Penetration @ 25 °C | ASTM D5 | dmm | 30–40 |
| Softening Point | ASTM D36 | °C | 100–110 |
| Loss on Heating | ASTM D6 | wt.% | ≤ 0.2 |
| Flash Point | ASTM D92 | °C | ≥ 250 |
| Solubility in CS2 | ASTM D4 / D2042 | wt.% | ≥ 99.5 |