HINCOL Emulsion SS1 IS8887 (Bulk)
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Product : HINCOL EMULTRA PLUS SS1 (IS)
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HINCOL EMULTRA PLUS SS1 (IS)
Invert Emulsion | Prime Coat | IS 8887HINCOL 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, it enhances the bond between the granular base course (WMM/WBM) and the asphalt overlay — ensuring long-lasting pavement performance on Indian highways, state roads, and rural roads.
As part of HINCOL’s complete bitumen emulsion range, EMULTRA PLUS SS1 (IS) is formulated to provide deep penetration up to 15 mm into granular base layers — sealing pores, binding loose aggregates, and creating a waterproof interlayer surface before DBM placement. Being a water immiscible invert emulsion, it performs consistently even in wet and humid site conditions where conventional emulsions may be displaced.
💧 What is an Invert Emulsion — and Why Does it Matter?
EMULTRA PLUS SS1 IS is an invert (water-in-oil) emulsion — bitumen is the continuous phase and water is dispersed within it. Unlike conventional (oil-in-water) emulsions, it is water immiscible — it does not wash away with water or get diluted by moisture at the site. This ensures consistent penetration and performance even on damp granular surfaces, preventing the emulsion from being displaced before breaking is complete.
MoRTH Clause 502 Compliant. HINCOL EMULTRA PLUS SS1 (IS) conforms to IS 8887 — the standard specified for prime coat emulsion (SS1 grade) as per MoRTH Specifications for Road & Bridge Works (5th Revision), Clause 502. Suitable for all NHAI, State PWD, and PMGSY highway projects requiring IS 8887 prime coat.
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Deep Penetration — Up to 15 mm
Achieves penetration up to 15 mm into granular base layers — far superior to conventional SS1 emulsions that remain on the surface of dense WMM layers.
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Excellent Adhesion Strength
Forms a strong bond between base course and bituminous overlay — preventing interlayer slippage, delamination, and shear failure under traffic.
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Water Immiscible Formula
Invert emulsion — does not wash away with water. Ensures consistent prime coat performance in wet or humid site conditions across India’s monsoon season.
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Controlled Slow Setting
Balanced setting time allows sufficient penetration before breaking — ensuring deep, uniform sealing rather than a surface film.
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High Storage Stability
Maintains consistent performance over extended storage — enabling efficient bulk procurement and inventory management for large highway projects.
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Eco-Friendly vs Cutback
Water-based emulsion — significantly lower VOC emissions and no petroleum solvent hazards compared to MC cutback bitumen that was previously used for prime coat.
Technical Specifications — HINCOL EMULTRA PLUS SS1 (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
- Emulsion Character Invert (Water-in-Oil)
Application Guidelines
- 🌡️ Temperature:Ambient — avoid application during rain
- 🏷️ Rate:6–15 kg / 10 m² (varies by surface porosity)
- 🔧 Equipment:Self-propelled pressure distributor (calibrated)
- ⏱️ Curing:Min 24 hours before overlay (MoRTH Clause 502)
- ⚠️ Precaution:Surface must be clean & dry. No traffic during curing.
Recommended Application Rates — By Surface Type (IS 8887)
As per IS 8887 guidelines and MoRTH Clause 502. Actual rate determined at site by supervising engineer based on base material porosity and absorption.
| Surface Type | Porosity | Application Rate |
|---|---|---|
| WMM / WBM (Wet Mix / Water Bound Macadam) | Low-Porous | 6 – 9 kg per 10 m² |
| Cement-Stabilized Soil Base | Medium-Porous | 9 – 12 kg per 10 m² |
| Gravel Base | High-Porous | 12 – 15 kg per 10 m² |
Typical overall range: 0.6 – 1.2 litres/m² depending on site conditions. The rate should be the maximum that can be absorbed without surface run-off.
How EMULTRA PLUS SS1 Works — Prime Coat Process
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Surface Preparation
WMM/WBM/Gravel base layer swept clean and free of dust, loose material, and standing water. Light moisture sprinkled if excessively dry — surface allowed to dry for 30–60 min before spraying.
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Emulsion Spraying
EMULTRA PLUS SS1 IS applied uniformly using a self-propelled pressure distributor at the recommended rate based on surface type and porosity. Avoid overlapping or pooling.
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Deep Penetration
The invert emulsion’s controlled slow setting allows it to penetrate up to 15 mm deep into granular base pores — sealing voids, binding loose fines, and waterproofing the surface zone.
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Breaking & Curing
Emulsion breaks — water evaporates, leaving a continuous bitumen film. Cures for a minimum of 24 hours as per MoRTH Clause 502. No traffic or equipment during curing.
Advantages of HINCOL EMULTRA PLUS SS1 (IS)
✅ Deep Base Penetration (15 mm)
Seals and stabilises the granular base at depth — far better than conventional SS1 that sits on the surface of dense WMM layers without penetrating.
✅ Water Immiscible — Monsoon-Safe
Invert emulsion formulation will not wash away or be displaced by water — reliable performance in wet and humid Indian site conditions throughout the monsoon season.
✅ Enhanced Pavement Durability
Increases pavement longevity by reducing moisture ingress into structural layers — a waterproofed base is a stronger, longer-lasting base.
✅ Strong Interlayer Bonding
Prevents slippage and delamination between granular base and bituminous overlay — protecting the full pavement structure against early failure.
✅ Eco-Friendly vs Cutback Bitumen
No petroleum solvents — significantly lower VOC exposure on site compared to MC cutback primers. Safer for construction workers and compliant with environmental norms.
✅ Consistent Site Performance
Maintains stability across varying weather conditions and site environments across India’s diverse climatic zones — from humid coastal projects to dry desert highways.
Success Story: Expressway Base Preparation with EMULTRA PLUS SS1 (IS)
Granular Base Layer Preparation — 40 km Expressway Package
Zero Delamination — 1 Year ConfirmedChallenge: A highly porous WMM base layer over a 40 km expressway stretch — standard SS1 emulsion was pooling on the surface without penetrating, resulting in poor DBM bonding and delamination risk under heavy traffic.
Solution: HINCOL EMULTRA PLUS SS1 (IS) applied at 9–12 kg/10m² — invert formulation penetrated up to 15mm deep, sealed the WMM, and provided a water-resistant interlayer. DBM overlay bonded firmly — zero delamination confirmed at 1-year post-construction inspection.
Total Quantity110 MT
Delamination (1 Yr)Zero
Penetration AchievedUp to 15 mm
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Watch how HINCOL Prime Coat emulsions are engineered for deep penetration, waterproofing, and durable bonding on WMM/WBM granular base layers.
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, ensuring deep penetration up to 15mm, 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 penetration of up to 15 mm into granular base layers — making it one of the highest-penetrating prime coat emulsions for road construction in India. Standard SS1 emulsions typically achieve only 2–4 mm penetration on dense WMM, while EMULTRA PLUS is formulated for significantly deeper penetration.
What is the application rate of SS1 IS8887 for prime coat?
- Low-porous (WMM/WBM): 6 – 9 kg per 10 m²
- Medium-porous (Cement-Stabilized Soil): 9 – 12 kg per 10 m²
- High-porous (Gravel): 12 – 15 kg per 10 m²
The rate should be the maximum that can be fully absorbed without surface run-off. Typical range: 0.6 – 1.2 litres/m² depending on site conditions.
Why is EMULTRA PLUS SS1 an invert emulsion, and why does it matter?
EMULTRA PLUS SS1 IS is an invert (water-in-oil) emulsion — 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 oil-in-water emulsions that can be diluted or displaced by site moisture. This ensures consistent penetration performance in wet and humid conditions — a critical advantage during India’s monsoon season when road construction continues.
What is the difference between SS1 IS8887 and SS1 ASTM emulsion?
Both are Slow Setting cationic prime coat emulsions. SS1 IS8887 conforms to Indian Standard IS 8887 — the specification required for Indian highway projects under MoRTH/IRC guidelines (Clause 502). SS1 ASTM (HINPRIME) conforms to ASTM D2397 — used where international project standards apply. Both perform prime coat functions but are tested and certified to different standard bodies.
What is a prime coat and why is it important?
A prime coat is a light application of bituminous emulsion to an unbound granular base layer before asphalt overlay. It serves to: seal the base surface against moisture ingress; bond the base to the overlay; prevent slippage and delamination; and distribute traffic loads evenly. Without a proper prime coat, the granular base and bituminous overlay behave as separate, unbound layers — leading to rapid delamination, pothole formation, and structural failure.
What is the difference between Prime Coat (SS1) and Tack Coat (RS1)?
- Prime Coat SS1 (EMULTRA PLUS SS1 IS): Applied to granular/unbound base before the first bituminous layer. Penetrates and seals the base. Slow setting allows time for deep penetration. Rate: 6–15 kg/10m².
- Tack Coat RS1 (HINCOL RS1 / HINTAC): Applied between two bituminous layers to bond them. Rapid setting — thin bonding film only. Rate: 0.2–0.4 kg/m².
Is HINCOL EMULTRA PLUS SS1 (IS) compliant with IS 8887?
Yes. HINCOL EMULTRA PLUS SS1 (IS) conforms to IS 8887 specification for Slow Setting 1 (SS1) cationic bitumen emulsion — manufactured under ISO 9001:2015 certified quality processes at HINCOL’s plants across India, with full batch-level lab testing.
Is SS1 emulsion eco-friendly compared to cutback bitumen?
Yes. Bitumen emulsions like HINCOL EMULTRA PLUS SS1 (IS) are significantly more eco-friendly than MC cutback bitumen. Emulsions use water as the carrier medium with no petroleum solvents, have negligible VOC emissions during application, and are safe to handle and store — making them the preferred choice under MoRTH’s green road construction guidelines. Cutback bitumen is now restricted to sub-zero temperature sites only per current MoRTH specifications.
What other HINCOL products are used alongside SS1 in road construction?
- Prime Coat (Base to DBM): HINCOL EMULTRA PLUS SS1 IS — this page
- Tack Coat (DBM to BC/SDBC): HINCOL Emulsion RS1 or HINCOL HINTAC
- Surface Dressing: HINCOL Chip Seal Emulsion RS2
- Soil Stabilization / ETB: HINCOL Emulsion SS2-Stab
Certified Quality
IS 8887 Compliant | Invert (Water-in-Oil) Emulsion | Water Immiscible | Penetration Up to 15mm | ISO 9001:2015 | NABL-Accredited Lab | MoRTH Clause 502 Suitable
IS 8887
ISO 9001:2015
Invert Emulsion
NABL Lab