Black Rock Bitumen supplies QS-1H bitumen emulsion, a quick-setting anionic emulsion with high-viscosity (hard residue) designed for fast bonding, strong adhesion, and rapid road maintenance operations. Manufactured to meet ASTM D977 / ASTM D244 standards, QS-1H is widely used in tack coat, fog seal, patching, and surface sealing applications where quick setting is essential.
QS-1H Bitumen Emulsion is an anionic, quick-setting emulsion with a high-viscosity, hard residue designed to break rapidly upon contact with aggregates. It forms a strong adhesive bond between pavement layers, delivering fast bonding and durable performance for demanding road construction and repair applications.
QS-1H Bitumen Emulsion is widely used in tack coat, fog seal, patching, and surface sealing applications where quick setting is essential. It performs well for tack coat and maintenance work on highways and urban roads, providing fast bonding with minimal disruption to traffic flow.
Black Rock Bitumen supplies QS-1H Bitumen Emulsion manufactured to ASTM D977 and ASTM D244 standards, ensuring consistent viscosity, adhesion, and setting performance in every batch. Sourced from certified facilities and shipped through our Dubai logistics hub, our QS-1H Bitumen Emulsion consistently delivers dependable, export-grade performance worldwide.
We deliver bitumen in versatile, secure options: economical Jumbo Bags, robust steel Drums, or high-volume Bulk Containers (Bitutainers/Bituboxes).
QS-1h is a cationic slow-setting, high-viscosity bitumen emulsion offering excellent adhesion, strong residual binder, and extended workability for slurry, micro-surfacing, and fine aggregate applications.
QS-1H (Quick Setting – Grade 1 Hard) is an anionic bitumen emulsion with a hard, high-viscosity residue, designed to break rapidly upon contact with aggregates and form a strong adhesive bond between pavement layers.
QS-1H is used in tack coat, fog seal, patching, and surface sealing applications where quick setting and strong adhesion are essential.
The "H" grade indicates a hard residue, producing a stronger and more durable bitumen film than standard quick-setting grades.
No, QS-1H is intended for surface applications, not mixing, because it sets too quickly and would not allow adequate working time during mixing processes.
Yes, QS-1H is widely used for tack coat and maintenance work on both highways and urban roads.
No, QS-1H is a cold-applied emulsion, improving job-site safety and reducing energy costs.
As an anionic (negatively charged) emulsion, QS-1H is best suited to clean, dry aggregates rather than damp or moisture-heavy surfaces.
QS-1H typically has a shelf life of 2–3 months, depending on storage conditions.
