Cutback Bitumen Slow Curing
Cutback Bitumen Slow Curing (SC) is a type of bitumen blended with slow-evaporating solvents such as diesel or heavy oil. It is designed for applications requiring extended curing times, allowing for deep penetration into low-porosity or moisture-retaining surfaces. SC bitumen is particularly useful in priming unbound road bases before hot mix asphalt layers are applied. Its ability to remain workable for longer durations makes it ideal in warmer climates or remote areas where fast setting is not necessary.
Slow Curing cutback bitumen is often used for dust control, stabilization of unpaved roads, and as a primer for granular or crushed stone layers. It helps bind fine particles together, enhancing the strength and durability of the road structure. Due to its longer curing period, it allows construction crews more time for application and compaction without premature hardening.
SC-30
SC-30 is a low-viscosity slow curing bitumen used primarily for light surface priming. It is ideal for fine-grained, low-density aggregates and quick absorption into the surface. Its thin consistency ensures quick and even application, especially on dry or dusty unbound road bases.
SC-70
SC-70 is slightly thicker than SC-30 and used for moderate priming requirements. It provides better penetration in medium-density base materials. This grade is well-suited for preparatory priming before asphalt paving on surfaces that need deeper binding but not full saturation.
SC-250
SC-250 is a medium-viscosity grade designed for general-purpose priming on granular or crushed stone surfaces. It offers a good balance between penetration and surface adhesion, making it a preferred choice for road bases in typical highway construction.
SC-800
SC-800 has high viscosity, making it suitable for heavy-duty priming on coarse, porous materials. It is used when slower curing and deeper penetration are required, such as in warm climates or for thick base layers needing long-lasting binding before asphalt layers are applied.
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