BIS Certification for Bitumen Emulsion for Roads Cationic Type IS 8887:2018 - SK Tar Product, Vaishali Nagar, Indore, Madhya Pradesh | Standphill India

Standphill India successfully completed BIS ISI Mark certification under IS 8887:2018 for SK Tar Product - a bitumen emulsion manufacturer based at 31-B, Vaishali Nagar, Indore, Madhya Pradesh 452009. The BIS license bearing number 820018**** was officially granted on May 28, 2025. Standphill India managed the complete certification process from factory assessment to final license grant.

SK Tar Product is a bitumen emulsion manufacturer based in Vaishali Nagar, Indore - Madhya Pradesh's largest city and one of central India's most significant commercial and industrial hubs. Indore's strategic location at the crossroads of major national highways connecting Delhi, Mumbai, Ahmedabad, and Bhopal makes it a natural base for road construction material manufacturers who supply infrastructure projects across Madhya Pradesh, Rajasthan, Gujarat, and Maharashtra.

Madhya Pradesh is among India's largest states by area and has one of the most extensive road networks under active development and maintenance - through NHAI national highway projects, state PWD road programmes, PMGSY rural road connectivity schemes, and urban road development under smart city and municipal infrastructure programmes. The demand for quality road construction materials - including bitumen emulsion - across MP and the surrounding central Indian states is substantial, sustained, and growing.

Cationic bitumen emulsion is a specialised road construction material used extensively in modern road building and maintenance technology. Unlike traditional hot bitumen application methods that require heating to high temperatures on site, bitumen emulsion can be applied at ambient temperature — making it safer, more energy-efficient, faster to apply, and suitable for a wider range of weather and site conditions. Cationic bitumen emulsion — where the bitumen droplets carry a positive electrical charge — is specifically designed for use with the negatively charged aggregate surfaces that constitute the majority of road construction aggregate in India, ensuring rapid and strong bitumen-aggregate adhesion.

A bitumen emulsion that fails to meet IS 8887:2018 requirements — through incorrect viscosity, inadequate residue on evaporation, poor storage stability, inadequate coating ability, or substandard penetration and ductility of the recovered bitumen — will fail to properly bond the road surface, leading to early stripping, pothole formation, surface ravelling, and structural failure of the road pavement. These failures generate enormous maintenance costs, create road safety hazards, and produce liability for the contractor and project authority. BIS certification under IS 8887:2018 ensures every batch of cationic bitumen emulsion manufactured by SK Tar Product has been independently verified to meet India's mandatory quality and performance standards — making their products legally compliant and commercially qualified for use on government road projects and regulated infrastructure works.

IS 8887:2018 is the Bureau of Indian Standards specification for cationic bitumen emulsion used in road construction and maintenance applications — covering the classification, physical and chemical performance requirements, test methods, and marking requirements that cationic bitumen emulsion must satisfy to be lawfully manufactured and supplied for road use in India.

BIS certification under IS 8887:2018 is mandatory for cationic bitumen emulsion manufacturers in India. NHAI, state PWD departments, PMGSY implementing agencies, municipal corporations, and road construction contractors on government-funded projects specify BIS-certified IS 8887:2018 cationic bitumen emulsion as a mandatory material procurement requirement.

Key requirements under IS 8887:2018 include:

Classification

IS 8887:2018 classifies cationic bitumen emulsions by application type - rapid setting, medium setting, and slow setting grades - each designed for specific road construction and maintenance applications. Rapid setting grades are used for surface dressing and chip sealing. Medium setting grades are used for premix applications. Slow setting grades are used for slurry sealing, microsurfacing, and cold mix applications. The standard defines performance requirements specific to each grade.

Viscosity

Defined viscosity ranges for each emulsion grade - measured at specified temperatures. Viscosity determines the emulsion's application behaviour - its ability to be pumped, sprayed, or mixed at site conditions. An emulsion that is too viscous clogs spray nozzles and mixing equipment; one that is too fluid fails to provide adequate film thickness on aggregate surfaces.

Residue on Evaporation

Minimum bitumen residue content after evaporation of the water phase - defining the actual bitumen content delivered to the road surface. The residue content directly determines the binding performance of the cured emulsion. IS 8887:2018 specifies minimum residue on evaporation for each grade.

Penetration of Residue

Penetration value of the bitumen recovered from the emulsion after evaporation - confirming the base bitumen grade used in emulsion manufacture meets the hardness requirements appropriate for the road application and climate conditions.

Ductility of Residue

Minimum ductility of the recovered bitumen residue - ensuring the cured bitumen film on the road aggregate is sufficiently flexible to accommodate pavement movement and thermal cycling without brittle fracture and stripping.

Storage Stability

Maximum change in residue content after defined storage period - confirming the emulsion does not separate, settle, or degrade during normal storage and transport conditions from the manufacturing plant to the site.

Coating Ability and Water Resistance

Assessment of the emulsion's ability to coat aggregate particles and resist stripping when exposed to water - the fundamental performance test for a road bitumen emulsion. An emulsion that strips readily from aggregate in the presence of water will fail rapidly on a wet road surface.

Particle Charge

Confirmation that the emulsion is cationic - carrying a positive charge - verified by defined particle charge test methods. This is the fundamental classification parameter distinguishing cationic from anionic emulsions and confirming the product is appropriate for use with the aggregate type specified.

Sieve Test

Maximum percentage of emulsion retained on a defined sieve - controlling the presence of coarse particles and bitumen globules that would cause application problems and uneven distribution on the road surface.

Marking Requirements

Manufacturer identification, product grade, batch number, date of manufacture, IS 8887 reference, and ISI Mark must be clearly and permanently marked on every certified consignment.

Standphill India conducted a pre-audit gap analysis at SK Tar Product's Vaishali Nagar facility in Indore - assessing the emulsion manufacturing process, bitumen feed stock controls, emulsifier dosing and mixing systems, viscosity and residue testing infrastructure, storage stability controls, particle charge testing capability, coating ability assessment systems, batch traceability documentation, and all quality management records against IS 8887:2018 requirements. Every compliance gap was identified and resolved before the BIS application was filed.

Complete IS 8887:2018 aligned technical documentation was prepared and submitted through the BIS portal. Cationic bitumen emulsion samples were tested at a BIS-recognised laboratory covering all required parameters - viscosity, residue on evaporation, penetration of residue, ductility of residue, storage stability, coating ability and water resistance, particle charge, sieve test, and marking - with first-attempt clearance. On-ground support was provided throughout the BIS factory audit at the Indore facility. Post-audit follow-up was managed through to license grant on May 28, 2025.

SK Tar Product - based in Vaishali Nagar, Indore - is certified. Their cationic bitumen emulsion carries the ISI Mark under IS 8887:2018. They are legally compliant and commercially qualified to supply every NHAI contractor, state PWD project, PMGSY road programme, municipal corporation, and regulated road construction supply chain that mandates BIS-certified bitumen emulsion.

If your bitumen emulsion manufacturing unit is still operating without a valid IS 8887:2018 BIS license - the market you are excluded from represents the majority of road construction procurement in India. NHAI and state PWD departments mandate BIS-certified road materials across their entire project pipeline. PMGSY rural road contracts specify BIS-certified bitumen emulsion as a materials compliance requirement. Without your BIS license, you cannot supply government road projects - which is where the volume is.

BIS enforcement for road construction materials is active across India and growing as infrastructure procurement agencies tighten material specification enforcement. Manufacturing or supplying non-certified cationic bitumen emulsion where BIS certification is mandatory exposes your business to enforcement action, project disqualification, and legal penalties under the BIS Act, 2016.

Standphill India manages the complete IS 8887:2018 BIS certification process - factory gap analysis, technical documentation, BIS application, laboratory testing coordination, factory audit support, and post-audit follow-up until your license is granted.

Contact Standphill India today for a free IS 8887:2018 BIS certification consultation.

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