CSS-1h

High-Viscosity Slow Setting Emulsion for Prime Coat & Stabilization

Black Rock Bitumen supplies CSS-1H bitumen emulsion, a high-performance cationic slow-setting emulsion engineered for enhanced penetration, superior adhesion, and extended workability in demanding road construction environments.

Manufactured to meet ASTM D2397 / AASHTO M208 standards, CSS-1H is optimized for hot climates, porous surfaces, and heavy-duty infrastructure applications.

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    What is CSS-1H Bitumen Emulsion?

    CSS-1H (Cationic Slow Setting – High Viscosity) is a water-based bitumen emulsion containing approximately 57% bitumen, designed for applications requiring longer working time and improved cohesion.

    The “H” stands for High viscosity / High performance, making it suitable for:

    • Warmer climates (slower evaporation control)
    • Deeper surface penetration
    • Improved binding strength

    Compared to CSS-1:

    CSS-1H offers better durability and resistance in hot environments
    Provides more stable coating during application

    Applications of CSS-1h Bitumen Emulsion

    Prime Coat on Granular Bases

    Penetrates highly porous surfaces and prepares them for asphalt layers.

    Soil Stabilization

    Improves load-bearing capacity of weak subgrades.

    Cold Mix Asphalt (Dense & Fine Mixes)

    Ensures uniform coating and workability during mixing.

    Slurry Seal & Micro Surfacing

    Ideal for fine aggregate mixtures and preventive maintenance.

    Advantages of CSS-1h

    Cost Efficient

    Reduces energy use, labor, and maintenance costs.

    Better Workability

    Provides sufficient time for uniform spreading.

    Cold Application

    No heating required, ensuring safer operations.

    Strong Adhesion

    Bonds well with aggregates and granular surfaces.

    Slow Setting

    Allows controlled breaking and easy application.

    Good Penetration

    Effectively penetrates base layers for strong bonding.

    Black Rock CSS-1h Bitumen Emulsion

    Essential Details

    Description

    • Type
    • Anionic Slow-Setting Bitumen Emulsion, Hard
    • Feed Stock
    • Harder Bitumen (Penetration Grade 60/70 or 85/100), Water, Anionic Emulsifier
    • HS Code
    • 27150000
    • Spot Test
    • Negative
    • 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
    • 18,000 MT/Month
    • Packing
    • - Bulk in Tanker - IBC Tank - New Steel Drum

    CSS-1h Specification

    CSS-1h Bitumen Emulsion Specifications

    Essential Details

    Test Method

    Unit

    Min.

    Max.

    • Specific Gravity at 25 °C
    • ASTM D70
    • –
    • 1.00
    • 1.05
    • Penetration at 25 °C, 100g, 5s
    • ASTM D5
    • 0.1mm
    • 80
    • 150
    • Softening Point
    • ASTM D36
    • °C
    • 45
    • 60
    • Ductility at 25 °C
    • ASTM D113
    • cm
    • 100
    • –
    • Loss on Heating
    • ASTM D6
    • wt.%
    • –
    • 0.8
    • Drop in Penetration after Heating
    • ASTM D5
    • %
    • –
    • 35
    • Flash Point
    • ASTM D92
    • °C
    • 235
    • –
    • Solubility in Trichloroethylene
    • ASTM D2042
    • wt.%
    • 97.5
    • –
    • Spot Test
    • ASHTO T102
    • Negative

    CSS-1h MSDS

    pdf

    CSS-1h 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.

    Get in Touch for Bitumen Orders & Inquiries

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      Successful Shipments

      Shipping & Delivery

      Port of Loading

      Jebel Ali, UAE

      Delivery Terms

      FOB, CIF, CFR

      Inspection

      SGS / Bureau Veritas available

      Lead Time

      2–4 weeks depending on order volume
      Our faqs

      Frequently Asked Questions.

      CSS-1h is a cationic slow-setting bitumen emulsion with higher viscosity, formulated for enhanced adhesion and improved performance in slurry and micro-surfacing applications.

      CSS-1h is a cationic slow-setting, high-viscosity bitumen emulsion designed to provide superior bonding and stability during mixing and placement.

      2. Where is CSS-1h commonly used?

      It is commonly used in:

      • Slurry seals
      • Micro-surfacing
      • Cold mix asphalt
      • Aggregate and soil stabilization

      CSS-1h has higher viscosity and improved adhesion, making it more suitable for demanding applications and improved mix stability.

      • Enhanced adhesion and cohesion
      • Better mix stability
      • Extended workability time
      • Suitable for cold application

      Store CSS-1h in clean, insulated tanks, maintain temperatures above 5°C, and avoid contamination to ensure long-term emulsion stability.