Oxidized Bitumen 85/40 (Blown Asphalt 85/40) – Flexible, High-Penetration Bitumen for Waterproofing and Industrial Applications
Description:
Oxidized Bitumen 85/40 is a softer, more flexible grade of blown asphalt produced by controlled air-blowing of vacuum-distilled bitumen. With a lower softening point and higher penetration value compared to harder grades (e.g., 90/10 or 95/15), it is ideal for applications requiring enhanced adhesion and elasticity in moderate-temperature conditions.
Uses:
Waterproofing Membranes: Used in roofing felts, damp-proof courses, and laminated sheets.
Pavement Preservation: Crack fillers, joint sealants, and asphalt repair compounds.
Industrial Coatings: Anti-corrosion pipe coatings, tank linings, and mastic asphalt.
Adhesives & Sealants: Bituminous tapes, waterproofing primers, and expansion joint fillers.
Soundproofing & Insulation: Bituminous underlays and acoustic panels.
Packing & Shipping:
- Packing:
- 25 kg Polyethylene Bags
- 50 kg Kraft Bags
- 180–200 kg Steel Drums
- Bulk: 1-ton pallets (blocks) or liquid tanker shipments (pre-heated).
- Shipping: Shipped globally via containers (20′ or 40′ FCL) or bulk vessels. Storage recommended in cool, dry conditions away from direct sunlight.
Product Specification (Oxidized Bitumen 85/40):
| Property | Value | Test Method |
| Softening Point (°C) | 80–90 | ASTM D36 / EN 1427 |
| Penetration (25°C, 100g, 5s) | 35–45 (0.1mm) | ASTM D5 / EN 1426 |
| Loss on Heating (%) | ≤ 0.5 | ASTM D6 / EN 13303 |
| Flash Point (°C) | ≥ 250 | ASTM D92 / EN ISO 2592 |
| Solubility in CS₂ (%) | ≥ 99 | ASTM D4 / EN 12592 |
Additional Notes:
- Standards Compliance: Meets ASTM, EN, and ISO specifications for oxidized bitumen.
- Customization: Available with modified properties (e.g., UV resistance, polymer modification).
- Safety: Non-hazardous for transport (IMO/ADR compliant); MSDS provided upon request.
