Flex 515304 Self-leveling Sealant, Polyurethane, 10-oz.

Sikaflex Self-Leveling Sealant is a single-component, premium-grade polyurethane sealant designed to seal horizontal expansion joints in concrete and cementitious surfaces. This self-leveling formula flows into gaps and cures to a smooth, flexible finish without requiring manual tooling, making it an ideal choice for both professional contractors and homeowners tackling concrete repair projects.

Perfect for driveways, garages, sidewalks, balconies, and other horizontal concrete applications, this sealant provides reliable waterproofing and excellent adhesion. Its rapid curing capacity means full strength is reached sooner, allowing the sealed surface to be used quickly. The sealant can be applied to new concrete 24 hours after the initial cure, or to concrete just 1 hour after rainfall, offering flexibility in application timing.

Features and Benefits

• Self-Leveling Formula: Flows into expansion joints and cures to a smooth finish without the need for tooling or finishing work.
• Single-Component: Requires no mixing, simplifying the application process and reducing preparation time on the job site.
• Rapid Curing: Accelerated curing capacity allows faster access to sealed surfaces and reduces project timelines.
• Waterproof and Water-Immersible: Provides dependable protection even when fully submerged after curing, ideal for areas subject to standing water or wet conditions.
• High Adhesion and Durability: Strong bonding properties ensure long-term protection and flexibility to accommodate concrete movement.
• Easy Application: Can be applied to new concrete 24 hours after cure or to damp concrete 1 hour after rainfall, providing scheduling flexibility.

Specifications

• Brand: Sikaflex
• Model: 515304
• Size: 10-Oz.
• Type: Self-leveling polyurethane sealant
• Component: Single-component
• Grade: Premium-grade
• Applications: Horizontal expansion joints in concrete, cementitious slabs, driveways, garages, sidewalks, and balconies