CRS 70

High-Performance Cationic Rapid Setting Emulsion for Road Construction

Black Rock Bitumen supplies CRS-70 bitumen emulsion for road construction, asphalt bonding, and surface treatment applications across global infrastructure projects.
Our CRS-70 grade is manufactured to meet international ASTM/AASHTO standards, ensuring consistent performance, fast setting, and superior adhesion in demanding site conditions.

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    What is CRS-70 Bitumen Emulsion?

    CRS-70 is a Cationic Rapid Setting bitumen emulsion designed for applications where quick breaking and strong bonding are required.
    It is widely used in:

    • Tack coat applications
    • Surface dressing
    • Road maintenance projects
    • Asphalt layer bonding

    The “70” indicates higher viscosity and binder content, making it ideal for heavy-duty road applications.

    Applications of CRS-70 Emulsion

    Tack Coat

    Ensures strong bonding between asphalt layers for long-lasting pavements.

    Surface Dressing

    Provides protective coating and enhances road durability.

    Road Maintenance

    Ideal for patchwork and repair operations.

    Prime Coat

    Used in specific conditions requiring rapid setting.

    Advantages of CRS 70

    Rapid-setting cationic emulsion designed for surface dressing, tack coats, and patch repairs. Ensures quick breaking and strong adhesion to aggregates, even in dusty conditions. Suitable for high-traffic roads with reduced curing time. Can be applied without heating, improving safety and cost efficiency while performing reliably in varied climatic conditions.

    Cost Efficient

    Reduces labor, equipment, and overall maintenance costs.

    Weather Versatility

    Performs reliably in humid and variable climates.

    High Traffic Ready

    Gains strength quickly, suitable for busy roads.

    No Heating Required

    Cold application improves safety and lowers energy costs.

    Strong Adhesion

    Bonds effectively with aggregates, even on dusty surfaces.

    Fast Setting

    Breaks and cures quickly, reducing construction time.

    Black Rock CRS 70 Bitumen Emulsion

    Essential Details

    Description

    • Type
    • Cationic Rapid-Setting Bitumen Emulsion
    • Feed Stock
    • Bitumen (Penetration Grade 70/100 or similar), Water, Cationic Emulsifier
    • HS Code
    • 27150000
    • Spot Test
    • Positive
    • Inspection
    • Included
    • Delivery Term
    • FOB-CFR-CIF
    • Production and Loading Period
    • 2–4 weeks after order confirmation
    • Payment Term
    • TT Method FOB Delivery: 30% advance and balance against customs documents CFR/CIF Delivery: 30% advance and balance against B/L daft
    • Marking
    • Marking can be customized based on customer request
    • Supply Capacity
    • 25,000 MT/month
    • Packing
    • - Bulk in Tanker (Heated) - IBC Tank - New Steel Drum

    CRS70 Specification

    Bitumen CRS70 Specifications

    Essential Details

    Test Method

    Unit

    Min.

    Max.

    • Specific Gravity at 25 °C
    • ASTM D70
    • –
    • 1.01
    • 1.06
    • Penetration at 25 °C, 100g, 5s
    • ASTM D5
    • 0.1mm
    • 60
    • 120
    • Softening Point
    • ASTM D36
    • °C
    • 45
    • 60
    • Ductility at 25 °C
    • ASTM D113
    • cm
    • 100
    • –
    • Loss on Heating
    • ASTM D6
    • wt.%
    • –
    • 1.0
    • Drop in Penetration after Heating
    • ASTM D5
    • %
    • –
    • 30
    • Flash Point
    • ASTM D92
    • °C
    • 230
    • –
    • Solubility in Trichloroethylene
    • ASTM D2042
    • wt.%
    • 99
    • –
    • Spot Test
    • ASHTO T102
    • Negative

    CRS70 MSDS

    pdf

    CRS70 Safety Data Sheet

    Download
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    Our Packaging

    We deliver bitumen in versatile, secure options: economical Jumbo Bags, robust steel Drums, or high-volume Bulk Containers (Bitutainers/Bituboxes).

    Terms of Payment

    Payment Terms for Smooth Transactions

    TT Method

    The buyer pays 30% advance, with the balance against B/L draft (CFR) or customs docs (FOB).

    LC at Sight

    100% irrevocable, non-transferable, confirmed LC at sight, subject to bank approval by Black Rock Bitumen.

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      Port of Loading

      Superior quality penetration grade bitumen which offers high performance and sustainability through the harshest climates.

      Delivery Terms

      It offers consistency, durability and sustainable road construction performance.

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      Our faqs

      Frequently Asked Questions.

      CRS-70 is a cationic rapid-setting bitumen emulsion with higher bitumen content, offering faster breaking and superior adhesion for heavy-duty road works and surface treatments.

      CRS-70 is a cationic rapid-setting bitumen emulsion with higher bitumen content, formulated for fast breaking and quick curing in road construction applications.

      2. Where is CRS-70 commonly used?

      CRS-70 is used in:

      • Tack coats
      • Surface dressing
      • Spray sealing
      • Patch repairs
      • High-traffic road maintenance works

      CRS-70 contains a higher percentage of bitumen, providing stronger adhesion, faster setting, and better performance under heavy traffic conditions.

      It carries a positive electrical charge, enabling superior bonding with negatively charged aggregates and improved durability of road surfaces.

      Store CRS-70 in clean tanks, away from direct heat, maintain temperatures above 5°C, and avoid contamination to preserve emulsion stability.