HINCOL Emulsion SS1 IS8887 (Bulk)
HINCOL EMULTRA PLUS SS1 (IS)
Recommended for Prime CoatHINCOL EMULTRA PLUS SS1 (IS) is a specially designed invert bitumen emulsion for prime coat applications in road construction, conforming to IS 8887. Engineered for superior penetration and adhesion, this emulsion enhances the bond between the granular base course and the asphalt layer — ensuring long-lasting pavement performance.
As part of HINCOL’s premium bitumen emulsion range, EMULTRA PLUS SS1 (IS) is formulated to provide excellent workability, stability, and durability in diverse climatic conditions across India. It is water immiscible, ensuring consistent performance even in wet site conditions — unlike conventional emulsions that can be displaced by water before penetration is complete.
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Deep Penetration — Up to 15 mm
Achieves penetration of up to 15 mm into granular base layers for optimal sealing and bonding before overlay.
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Excellent Adhesion Strength
Forms a strong bond between the base course and subsequent bituminous layers, preventing slippage and delamination.
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Water Immiscible
Invert emulsion formulation ensures consistent performance in wet or humid conditions — will not wash away with water.
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Controlled Setting Time
Balanced drying period allows sufficient penetration before breaking, ensuring efficient and uniform prime coat application.
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High Storage Stability
Maintains consistent performance over extended storage periods, reducing wastage on large highway projects.
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Optimised Workability
Easy application under varying site conditions with standard bitumen distributor equipment.
Technical Specifications (IS 8887)
Physical Properties
- Emulsion Type Slow Setting 1 (SS1) – Invert
- Standard IS 8887
- Penetration Capability Up to 15 mm
- Adhesion Strength Excellent
- Water Miscibility Water Immiscible
- Storage Stability High
- Setting Nature Controlled Slow Setting
Application Guidelines
- Temperature: Ambient conditions — avoid application during rain
- Application Rate: 0.6 – 1.2 litres/m² depending on surface porosity
- Suitable Surfaces: WMM, WBM, Cement-Stabilized Soil, Gravel base layers
- Precautions: Allow full penetration before opening to traffic or placing overlay. Surface must be clean and free of standing water.
Recommended Application Rates — By Surface Type (IS 8887)
Rates are as per IS 8887 guidelines. Actual quantity depends on site conditions, existing surface texture, and base material porosity.
| Surface Type | Porosity | Application Rate |
|---|---|---|
| WMM / WBM (Water Mixed / Bound Macadam) | Low-Porous | 6 – 9 kg per 10 sq.m |
| Cement-Stabilized Soil | Medium-Porous | 9 – 12 kg per 10 sq.m |
| Gravel Base | High-Porous | 12 – 15 kg per 10 sq.m |
How EMULTRA PLUS SS1 Works — Prime Coat Process
1
Surface Preparation
The granular base layer (WMM/WBM/gravel) is cleaned and made free of loose material and standing water before application.
2
Emulsion Spraying
HINCOL EMULTRA PLUS SS1 IS is applied uniformly using a bitumen distributor at the recommended rate based on surface porosity.
3
Penetration Phase
The slow setting nature allows the emulsion to penetrate up to 15 mm into the base layer — sealing pores and binding loose particles before it breaks.
4
Breaking & Curing
The emulsion breaks and cures, leaving a continuous bituminous film that seals the surface and acts as a bonding layer for the overlay.
5
Overlay Placement
After full curing, the Dense Bituminous Macadam (DBM) or asphalt overlay is placed — achieving maximum interlayer adhesion and load transfer.
Advantages of HINCOL EMULTRA PLUS SS1 (IS)
✅ Improved Base Preparation
Provides a superior foundation for asphalt layers by sealing and stabilising the granular base before overlay.
✅ Enhanced Pavement Durability
Increases the longevity of road surfaces by reducing moisture ingress into the structural layers.
✅ Cost-Effective
Optimised formulation leads to efficient material usage and reduced wastage on site.
✅ Eco-Friendly Composition
Formulated with reduced environmental impact compared to conventional cutback bitumen alternatives.
✅ Consistent Performance
Maintains stability across varying weather conditions and site environments across India.
✅ Strong Interlayer Bonding
Prevents slippage and delamination between the granular base and bituminous overlay — protecting the full pavement structure.
Success Story: Highway Base Preparation with EMULTRA PLUS SS1 (IS)
Granular Base Layer Preparation — Expressway Project
Improved Surface StabilityChallenge: A highly porous WMM base layer over a 40 km expressway stretch causing poor bonding before DBM overlay, with risk of delamination under heavy traffic loads.
Solution: HINCOL EMULTRA PLUS SS1 (IS) applied at 9–12 kg per 10 sq.m provided deep penetration up to 15 mm, effective base sealing, and strong adhesion to the subsequent DBM layer.
Total Quantity 110 Metric Tonnes
Performance Zero Delamination (1 Yr)
Penetration Achieved Up to 15 mm
Frequently Asked Questions
What is HINCOL EMULTRA PLUS SS1 (IS) used for?
HINCOL EMULTRA PLUS SS1 (IS) is used as a prime coat emulsion in road construction. It prepares granular base layers — WMM, WBM, gravel, and cement-stabilized soil — before asphalt or bituminous overlay is applied. It ensures deep penetration, sealing, and strong interlayer bonding between the base course and the Dense Bituminous Macadam (DBM) layer.
What is the penetration depth of SS1 IS8887 emulsion?
HINCOL EMULTRA PLUS SS1 (IS) achieves a penetration depth of up to 15 mm into granular base layers. This deep penetration makes it one of the most effective prime coat emulsions for road construction in India, ensuring full sealing of the base before overlay placement.
What is the application rate of SS1 IS8887 for prime coat?
The recommended application rate per IS 8887 varies by surface type:
- Low-porous surfaces (WMM/WBM): 6 – 9 kg per 10 sq.m
- Medium-porous surfaces (Cement-Stabilized Soil): 9 – 12 kg per 10 sq.m
- High-porous surfaces (Gravel): 12 – 15 kg per 10 sq.m
Typical overall range: 0.6 – 1.2 litres/m² depending on site conditions and base material.
What is the difference between SS1 IS8887 and SS1 ASTM emulsion?
Both are Slow Setting cationic emulsions used for prime coat, but they conform to different standards. SS1 IS8887 conforms to the Indian Standard IS 8887 and is the specification required for Indian highway projects under MORTH/IRC guidelines. SS1 ASTM conforms to American ASTM specifications, typically used where international project standards are followed.
Why is EMULTRA PLUS SS1 (IS) an invert emulsion, and why does that matter?
EMULTRA PLUS SS1 IS is an invert (water-in-oil) emulsion, meaning bitumen is the continuous phase and water is dispersed within it. This makes it water immiscible — it does not wash away with water, unlike conventional emulsions. This ensures consistent performance in wet or humid site conditions, preventing premature displacement before penetration is complete.
What is a prime coat and why is it important in road construction?
A prime coat is a light application of bituminous emulsion to an unbound granular base layer before asphalt overlay. It serves to:
- Seal the surface of the base layer against moisture ingress
- Bond the base layer to the subsequent bituminous overlay
- Prevent slippage or delamination of the bituminous layer
- Distribute traffic loads evenly to prevent premature pavement failure
Proper priming between the WMM layer and the DBM layer is crucial for effective load distribution in pavement structures. See also: HINCOL Emulsion RS1 for tack coat applications between two bituminous layers.
What is the difference between Prime Coat (SS1) and Tack Coat (RS1)?
- Prime Coat (SS1): Applied to granular/unbound base layers before the first bituminous layer. Penetrates and seals the base. Uses slow setting emulsion like EMULTRA PLUS SS1 (IS).
- Tack Coat (RS1): Applied between two bituminous layers to bond them together. Uses rapid setting emulsion like HINCOL RS1 or HINCOL HINTAC.
Is HINCOL EMULTRA PLUS SS1 (IS) compliant with IS 8887?
Yes. HINCOL EMULTRA PLUS SS1 (IS) conforms to IS 8887 specification for Slow Setting (SS1) cationic bitumen emulsion. It is manufactured under ISO 9001:2015 certified quality processes at HINCOL’s plants across India, with full batch-level testing.
What surfaces is HINCOL EMULTRA PLUS SS1 (IS) suitable for?
It is suitable for:
- WMM / WBM — Water Mixed Macadam / Water Bound Macadam (low-porous)
- Cement-Stabilized Soil — medium-porous base layers
- Gravel Base — high-porous surfaces requiring higher application rate
Any granular base layer requiring prime coat before bituminous overlay can use EMULTRA PLUS SS1 (IS).
What happens if prime coat viscosity is too high or breaking speed is too fast?
If the emulsion has too high a viscosity or breaks too quickly, it will not penetrate the granular layer adequately — sitting on the surface instead of sealing the base. This leads to poor interlayer bonding and eventual pavement failure. HINCOL EMULTRA PLUS SS1 (IS) has a controlled setting time specifically designed to allow sufficient penetration before breaking, as shown in the product’s Water Miscibility Test data.
How does proper prime coat application improve pavement life?
A well-penetrated prime coat using HINCOL EMULTRA PLUS SS1 (IS) ensures:
- Efficient Load Transfer: Distributes traffic loads evenly, reducing stress concentrations and preventing premature failures.
- Stronger Interlayer Bonding: Prevents slippage and delamination between layers, enhancing pavement stability.
- Reduced Moisture Susceptibility: Creates a water-resistant barrier, minimising water ingress that can weaken the base layer.
- Extended Pavement Life: Enhances overall durability by reducing deformation and structural weakening over time.
Is SS1 emulsion eco-friendly compared to cutback bitumen for prime coat?
Yes. Bitumen emulsions like HINCOL EMULTRA PLUS SS1 (IS) are significantly more eco-friendly than cutback bitumen (which uses petroleum solvents as diluents). Emulsions use water as the carrier medium, have no harmful VOC emissions during application, and are safe to handle and store — making them the preferred choice under MORTH’s green road construction guidelines.
What other HINCOL products are used alongside SS1 in road construction?
In a typical road pavement structure, HINCOL products are used at different layers:
- Prime Coat (Base to DBM): HINCOL EMULTRA PLUS SS1 (IS) — this page
- Tack Coat (DBM to BC): HINCOL Emulsion RS1 or HINCOL HINTAC
- Surface Dressing: HINCOL Chip Seal Emulsion RS2
- Cold Mix / Stabilisation: HINCOL Emulsion SS2
Certified Quality
Manufactured to IS 8887 | Invert Emulsion Technology | Water Immiscible Formula
ISO 9001:2015
IS 8887
Tested Lab