RS-1

Rapid Setting Emulsion for Tack Coat & Surface Dressing

Black Rock Bitumen supplies RS-1 bitumen emulsion, a rapid-setting anionic/cationic emulsion designed for applications requiring fast curing, strong adhesion, and quick traffic reopening.

Manufactured to meet ASTM D977 / ASTM D244 standards, RS-1 is ideal for tack coat, surface treatment, and fast-track road maintenance projects.

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    What is RS-1 Bitumen Emulsion?

    RS-1 (Rapid Setting – Grade 1) is a low-viscosity bitumen emulsion formulated to break and set quickly upon contact with aggregates, enabling fast bonding and curing.

    It is specifically designed for:

    • Applications where immediate adhesion is required
    • Projects needing quick reopening to traffic
    • Surface treatments with minimal downtime

    Unlike CMS or CSS grades:

    • RS-1 sets very quickly
    • Does not allow extended mixing time
    • Best suited for spray applications rather than mixing

    Rapid-setting emulsions are widely used in surface dressing and tack coat operations due to their fast curing behavior.

    Applications of RS-1 Emulsion

    Tack Coat Application

    Creates a strong bond between existing pavement and new asphalt layers.

    Surface Dressing

    Ensures quick adhesion of aggregates to the road surface.

    Spray Patching

    Ideal for emergency road repairs requiring rapid curing.

    Waterproofing & Sealing

    Used on concrete and metal surfaces for protective coating.

    Advantages of RS-1

    Strong Adhesion

    Bonds effectively with aggregates and surfaces.

    Excellent Workability

    Allows easy mixing, spreading, and handling.

    Cold Application

    No heating required, ensuring safer operations.

    Uniform Coating

    Ensures consistent coverage and better performance.

    Slow Setting

    Provides extended working time for mixing and application.

    Good Penetration

    Effectively penetrates base layers for strong bonding.

    Black Rock RS-1 Bitumen Emulsion

    Essential Details

    Description

    • Type
    • Anionic Rapid-Setting Bitumen Emulsion (RS-1)
    • Feed Stock
    • Bitumen (Penetration Grade 85/100 or similar), 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
    • 22,000 MT/Month
    • Packing
    • - Bulk in Tanker - IBC Tank - New Steel Drum

    RS-1 Specification

    RS-1 Anionic Bitumen Emulsion Specification

    Essential Details

    Test Method

    Unit

    Min.

    Max.

    • Viscosity, Saybolt Furol at 25 °C
    • ASTM D244
    • seconds
    • 20
    • 100
    • Residue by Distillation
    • ASTM D244
    • wt.%
    • 55
    • 65
    • Penetration at 25 °C, 100g, 5s
    • ASTM D5
    • 0.1mm
    • 100
    • 250
    • Ductility at 25 °C
    • ASTM D113
    • cm
    • 40
    • –
    • Sieve Test
    • ASTM D244
    • %
    • –
    • 0.1
    • Storage Stability (24h)
    • ASTM D244
    • %
    • –
    • 1
    • Particle Charge Test
    • ASTM D244
    • Anionic
    • -
    • –
    • Coating Ability and Water Resistance
    • ASTM D244
    • -
    • Good
    • –
    • Spot Test
    • ASHTO T102
    • Negative

    RS-1 MSDS

    pdf

    RS-1 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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      Shipping & Delivery

      Port of Loading

      Jebel Ali, UAE – strategically located logistics hub ensuring efficient global shipping and quick turnaround times.

      Delivery Terms

      FOB, CIF, CFR – flexible Incoterms tailored to meet client requirements and international trade standards.

      Inspection

      SGS / Bureau Veritas available – third-party inspection to ensure quality, compliance, and shipment transparency.

      Lead Time

      2–4 weeks depending on order volume – optimized production and logistics planning for timely delivery.
      Our faqs

      Frequently Asked Questions.

      RS-1 is an anionic rapid-setting bitumen emulsion designed for surface dressing and spray seal applications requiring quick breaking and efficient aggregate adhesion.

      RS-1 is an anionic rapid-setting bitumen emulsion formulated to break quickly upon application.

      2. Where is RS-1 commonly used?

      It is commonly used in:

      • Surface dressing
      • Spray sealing
      • Light chip seals
      • Low to medium traffic roads

      RS-1 has a lower viscosity and slightly slower break than RS-2, making it suitable for lighter surface treatments.

      • Quick setting and curing
      • Good aggregate adhesion
      • Easy application
      • Suitable for cold application

      Store RS-1 in clean, insulated tanks, maintain temperatures above 5°C, and avoid contamination to preserve emulsion stability.