HINCOL Emulsion RS1 (Bulk)
HINCOL Emulsion RS1
Recommended for Tack CoatHINCOL Emulsion RS1 is a specially designed water-based Rapid Setting Cationic Bitumen Emulsion with low viscosity and fast setting time — making it the industry-standard choice for Tack Coat applications in road construction and highway maintenance across India. Chocolate brown in colour and free-flowing at ambient temperature, it is manufactured strictly as per IS 8887:2004.
As part of HINCOL’s complete range of bitumen emulsions, RS1 breaks rapidly on contact with the road surface — leaving a thin, uniform adhesive film that bonds two bituminous pavement layers firmly together. It prevents slippage, delamination, and structural failure under repeated traffic loads, and can be applied on bituminous, aged bituminous, primed bituminous, and non-bituminous surfaces without any heating or dilution.
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Rapid Setting — ~15 Minutes
Breaks and cures in approximately 15 minutes at ambient temperature, enabling fast overlay placement and minimising road closure time.
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Low Viscosity
Viscosity of 20–100 sec @ 50°C allows the emulsion to penetrate fine cracks and surface dust for a uniform, strong adhesive film.
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High Adhesive Properties
Provides strong interlayer bonding between bituminous pavement courses, preventing structural layer slippage under heavy traffic.
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No Heating Required
Applied cold at ambient temperature — no heating equipment needed on site, saving fuel costs and improving safety.
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Environment Friendly
Water-based formulation with no petroleum solvents — low VOC emissions, compliant with MORTH green road construction guidelines.
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Cost Efficient
Low application rates and easy uniform spray reduce material wastage and labour costs on large highway projects.
Technical Specifications (IS 8887:2004)
Physical Properties
- Emulsion Type Rapid Setting Cationic (RS1)
- Standard IS 8887:2004
- Viscosity @ 50°C (Saybolt) 20 – 100 sec
- Residue on 600 Micron IS Sieve Max 0.05%
- Storage Stability (24h) Less than 2%
- Binder Residue by Evaporation Min 60%
- Average Setting Time ~15 Minutes
- Colour Chocolate Brown
Application Guidelines
- Temperature: Ambient — no heating required
- Application Rate: 2.0 – 4.0 kg per 10 sq.m (by surface type)
- Suitable Surfaces: Bituminous, Aged Bituminous, Primed, Non-Bituminous, Concrete
- Drum Prep: Roll drum 5 times before use for uniform mixing
- Precautions: Do not dilute with solvent. Surface must be clean before application.
Recommended Rate of Application — By Surface Type (IS 8887:2004)
Rates from HINCOL product datasheet. Actual rate depends on site conditions and existing surface texture.
| Type of Surface | Quantity (Kg / 10 m² Area) |
|---|---|
| 1. Bitumen Surface | 2.0 – 2.5 kg |
| 2. Aged Bitumen Surface | 2.5 – 3.0 kg |
| 3. Primed Surface | 2.5 – 3.0 kg |
| 4a. Non-Bituminous — Granular Base (Not Primed) | 3.5 – 4.0 kg |
| 4b. Non-Bituminous — Cement Concrete Pavement | 3.0 – 3.5 kg |
How HINCOL RS1 Tack Coat Works — Step by Step
1
Surface Cleaning
Existing bituminous or concrete surface is swept clean — free of dust, loose material, and standing water before RS1 application.
2
Drum Preparation
Roll the RS1 emulsion drum 5 times for homogeneous mixing. Do not dilute or mix with any solvent before use.
3
Uniform Spraying
RS1 is sprayed uniformly using a bitumen distributor or hand sprayer at the rate specified for the surface type.
4
Breaking & Setting
The emulsion breaks on contact with the road surface in ~15 minutes, forming a thin, uniform adhesive bitumen film.
5
Overlay Placement
After the tack coat has fully set, the new asphalt or DBM overlay is placed — achieving maximum interlayer bond strength.
Key Advantages of HINCOL Emulsion RS1
✅ No Heating Required
Applied cold at ambient temperature — eliminates heating equipment, reduces fuel costs and fire risk on site.
✅ Cost Efficient
Low usage rates and easy spray application lower overall project cost vs hot bitumen alternatives.
✅ Easy and Uniform Spray
Low viscosity ensures even distribution using bitumen distributor, hand sprayer, or manual spray can.
✅ Fast Setting — ~15 Min
Enables rapid paving workflow — ideal for highway projects with tight traffic management windows.
✅ Prevents Layer Slippage
High adhesive strength stops bituminous layers from sliding under braking, acceleration, and turning loads.
✅ Environment Friendly
Water-based, no harmful solvents — safe for workers and compliant with green road construction norms.
Packaging & Availability
Available in multiple formats to suit all project scales — from large National Highway works to local road maintenance.
Bulk Supply
For large highway projects
RC Drums
200 Kg per drum
MS Drums
200 Kg per drum
HDPE Drums
200 Kg per drum
Success Story: NH-44 Tack Coat Application with RS1
Critical Tack Coat Application — 50 km National Highway Overlay
Completed Ahead of ScheduleChallenge: Overlaying a 50 km National Highway stretch during monsoon. Dust and moisture risked poor bonding between the existing surface and new asphalt overlay.
Solution: HINCOL Emulsion RS1’s low viscosity penetrated the dust-laden aged bituminous surface effectively. Rapid setting (~15 min) allowed overlay operations to continue without delay — even in humid conditions.
Total Quantity Used 120 Metric Tonnes
Performance Zero Delamination (1 Yr)
Setting Time on Site ~15 Minutes
Ready to Order HINCOL Emulsion RS1?
Get in touch with our technical team for pricing, availability, and project-specific guidance. We supply in Bulk, RC Drums, MS Drums, and HDPE Drums (200 Kg) across India.
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Frequently Asked Questions
What is HINCOL Emulsion RS1 used for?
HINCOL Emulsion RS1 is primarily used as a Tack Coat in road construction and highway maintenance. It bonds new asphalt or bituminous overlay to existing pavement surfaces — bituminous, aged bituminous, primed, and non-bituminous including cement concrete — preventing slippage and delamination between layers under traffic loads.
What is the setting time of RS1 bitumen emulsion?
HINCOL Emulsion RS1 has an average setting time of approximately 15 minutes at ambient temperature. This allows overlay paving to begin quickly, minimising traffic management window requirements and project delays on busy highways.
What is the binder content of HINCOL Emulsion RS1?
HINCOL Emulsion RS1 has a minimum binder residue by evaporation of 60% as per IS 8887:2004. This ensures adequate bitumen film thickness after breaking, providing strong interlayer adhesion between pavement courses.
What is the viscosity of RS1 bitumen emulsion?
RS1 has a viscosity of 20 – 100 sec at 50°C (Saybolt Viscometer) as per IS 8887:2004. This low viscosity is key — it allows the emulsion to penetrate fine surface cracks and dust, ensuring a uniform thin adhesive film with complete coverage.
What is the recommended application rate of RS1 tack coat?
Application rate varies by surface type:
- Bitumen Surface: 2.0 – 2.5 kg per 10 sq.m
- Aged Bitumen Surface: 2.5 – 3.0 kg per 10 sq.m
- Primed Surface: 2.5 – 3.0 kg per 10 sq.m
- Granular Base (Not Primed): 3.5 – 4.0 kg per 10 sq.m
- Cement Concrete Pavement: 3.0 – 3.5 kg per 10 sq.m
What is the difference between RS1 and RS2 bitumen emulsion?
- RS1: Low viscosity (20–100 sec @ 50°C), min 60% binder. Used as Tack Coat between two bituminous layers. Can be sprayed manually or by distributor.
- RS2: High viscosity (100–300 sec), min 65% binder. Used for Surface Dressing / Chip Seal — holds aggregate chippings in place. See HINCOL Chip Seal Emulsion RS2.
What is the difference between Tack Coat (RS1) and Prime Coat (SS1)?
- Tack Coat — RS1: Applied between two bituminous layers to bond them. Creates adhesion preventing slippage. Rate: 2–4 kg/10 sq.m.
- Prime Coat — SS1: Applied to an unbound granular base before the first bituminous layer — penetrates and seals the base. See HINCOL EMULTRA PLUS SS1 IS or HINCOL HINPRIME SS1 ASTM.
Does HINCOL Emulsion RS1 require heating before application?
No. RS1 is applied at ambient temperature — no heating equipment needed. This makes it safer, faster, and significantly more cost-efficient than hot applied bitumen tack coat methods.
Can RS1 tack coat be applied on non-bituminous surfaces?
Yes. HINCOL Emulsion RS1 can be applied on granular base (not primed) at 3.5–4.0 kg/10 sq.m and on cement concrete pavement at 3.0–3.5 kg/10 sq.m. Higher rates account for greater absorption on non-bituminous surfaces.
Is HINCOL Emulsion RS1 compliant with IS 8887:2004?
Yes. HINCOL Emulsion RS1 is manufactured strictly as per IS 8887:2004 for Rapid Setting Cationic Bitumen Emulsion, under ISO 9001:2015 certified quality processes at HINCOL’s plants across India.
What packaging options are available for HINCOL Emulsion RS1?
- Bulk — for large highway and expressway projects
- RC Drums — 200 Kg
- MS Drums — 200 Kg
- HDPE Drums — 200 Kg
How should HINCOL Emulsion RS1 drums be prepared before use?
- Roll the drum 5 times before opening for homogeneous mixing.
- Use at ambient temperature — do not heat.
- Do not dilute with any solvent or water.
What are common causes of tack coat failure and how is it prevented?
- Over-application: Creates a lubricating layer — always use prescribed rates.
- Contamination: Dust, oil, or water prevents bonding — clean surface before application.
- Under-application: Dry spots cause weak zones — uniform spray is essential.
- Premature overlay: Placing asphalt before RS1 sets (~15 min) causes emulsion pick-up — wait for full setting.
Where can I buy HINCOL Emulsion RS1 online?
HINCOL Emulsion RS1 is available online on the L&T SuFin B2B construction marketplace with GST invoice and assured quality. You can also request a quotation directly from HINCOL for bulk supply and project requirements.
What other HINCOL products are used at different stages of road construction?
- Prime Coat (WMM to DBM): HINCOL EMULTRA PLUS SS1 IS or HINPRIME SS1 ASTM
- Tack Coat (DBM to BC): HINCOL Emulsion RS1 (this page) or HINCOL HINTAC
- Surface Dressing: HINCOL Chip Seal Emulsion RS2
- Cold Mix / FDR: HINCOL SS2 or HINCOL SS2 FDR
- Bond Coat: HINCOL BONDCOAT C50BP
Certified Quality
Manufactured strictly to IS 8887:2004 | No Heating Required | Environment Friendly
ISO 9001:2015
IS 8887:2004
Tested Lab