Bitumen 75/35 is a versatile air-blown bitumen grade that bridges the gap between hard (low-penetration) and flexible (higher-penetration) oxidized bitumen products. With a softening point of 75–85°C and a penetration of 30–40 dmm, it provides a slightly softer film compared to the 75/25 grade, enabling better cold-weather flexibility without sacrificing the heat resistance necessary for warm-climate roofing applications.
This grade is a preferred choice for flat-roof waterproofing membrane manufacturers who need a base bitumen that can be applied at lower processing temperatures, bond strongly to substrate fleeces, and remain pliable enough to accommodate minor structural settlement without cracking.
Exported from our UAE facility to over 50 countries, Bitumen 75/35 meets the stringent quality requirements of international standards including ASTM D312 Type II and BS EN 13304.
Flexible roofing membranes, multi-layer waterproofing systems, damp-proof courses (DPC), bituminous felt underlay, and base coats for SBS-modified membranes.
EN 12591 (European Standard) classifies penetration grade bitumen by its penetration value and softening point range. Black Rock Bitumen supplies all major EN grades, tested and certified for export from our Dubai logistics hub.
We deliver bitumen in versatile, secure options: economical Jumbo Bags, robust steel Drums, or high-volume Bulk Containers (Bitutainers/Bituboxes).
Bitumen 75/35 is a hard paving bitumen grade with a 35 (0.1mm) penetration and a softening point around 75°C. This bitumen grade is generally used for high-temperature road construction.
Bitumen 75/35 is an air-blown bitumen with a softening point of 75°C and penetration of 35 dmm, making it slightly more flexible than 75/25 while retaining good heat resistance.
It is used in roofing felts, waterproofing membranes, and general industrial coatings where added flexibility is beneficial.
75/35 has a higher penetration (35 dmm vs 25 dmm) than 75/25, making it softer and more flexible, which suits applications needing greater elasticity such as roofing membranes.
Yes, its balance of moderate hardness and flexibility makes it well suited for roofing felt and membrane manufacturing.
Bitumen 75/35 is typically tested per ASTM D312 for softening point, penetration, and related industrial-grade specifications.
Application temperatures generally range from 180–210°C, depending on the specific hot-applied process.
Store in a cool, dry, covered area away from heat sources, in sealed packaging to prevent moisture and contamination.
Black Rock Bitumen supplies Bitumen 75/35 in steel drums, jumbo bags, or bulk, with FOB, CFR, or CIF delivery terms BITUMEN 85/25 H1: Bitumen 85/25 — Industrial-Grade Air-Blown Oxidized Bitumen Supplier Description: Bitumen 85/25 represents a significant step up in thermal hardness compared to the 75-series grades. With a softening point of 85–95°C and a penetration of 20–30 dmm, Bitumen 85/25 is purpose-engineered for industrial pipeline coating, anti-corrosion linings, and high-temperature protective coatings where resistance to both heat and chemical attack is paramount. As a trusted Bitumen 85/25 manufacturer and exporter, we ensure consistent quality, reliable global supply, and complete technical documentation with every shipment. CTA: Get a Bitumen 85/25 Quote → ________________ Paragraph 1 – What it is (definition): Oxidized Bitumen 85/25 is an air-blown bitumen grade with a softening point of 85–95°C and a penetration value around 25 (0.1mm). Compared to 75-series grades, it offers greater thermal hardness, remaining solid and stable under high temperatures for demanding industrial, construction, and pipeline coating applications worldwide. (46 words) Paragraph 2 – Where it's used (applications): Oxidized Bitumen 85/25 is the standard grade for industrial pipeline anti-corrosion coatings, bituminous enamel pipe wrapping, and heavy-duty protective coatings on steel and concrete infrastructure. It performs reliably in hot climates, where buried or above-ground pipelines can reach surface temperatures above 60°C without softening or sagging. (46 words) Paragraph 3 – Why buy from Black Rock Bitumen (trust/quality): Black Rock Bitumen supplies Oxidized Bitumen 85/25 formulated to meet AWWA C203, DIN 30670, and BS 4164 standards for pipeline coatings. Sourced from certified refineries and shipped through our Dubai logistics hub, our Oxidized Bitumen 85/25 delivers consistent softening point, penetration, and long-term corrosion protection worldwide. (46 words) ________________ Bitumen 85/25 — 8 FAQs
