XINDESAN Concrete Crack Filler — 42oz Grey, High Elasticity, Self-Leveling Cement Sealant

Overview

Meet XINDESAN Concrete Crack Filler, a gray, high-elasticity sealant designed to move with concrete as it settles and expands. The fast-drying formula aims to deliver a clean, professional finish for both indoor and outdoor projects, helping you address cracks before they widen or let moisture in. While results can vary with surface prep and conditions, the product is formulated to stay flexible and form a durable seal under typical weather patterns.

What’s in the kit

• Two packs of crack sealant, each about 600 g (approximately 14.5 fl oz / 1.32 lb).
• Total content around 29 fl oz / 2.65 lb.
• Resealable pouch design for direct application by squeezing after attaching the nozzle.
• Includes a caulking brush, scraper, and gloves for a tidier, more convenient repair process.

Key performance features

• High elasticity that accommodates ground movement and traffic, helping maintain adhesion on concrete surfaces.
• Waterproof and weather resistant, forming a barrier against water intrusion on roofs, basements, and joints.
• Self-leveling and quick-drying, reducing downtime with surface dry in 4–6 hours and full cure around 24 hours.
• No extra tools required; applies with a standard caulking nozzle for a smooth, professional finish.

Versatile applications

• Suitable for concrete, asphalt, brick, tile, metal, and wood joints.
• Ideal for driveways, patios, sidewalks, basements, garages, or construction sites.
• Provides a durable finish for cracks in corners and high-traffic areas.

Real-life scenarios include sealing a sun-warmed driveway after a rainfall, where the gray sealant blends with the surface while remaining flexible as temperatures shift. The resealable pouch helps minimize waste, and the included tools encourage a cleaner, more controlled repair process. This sealant is designed to resist UV exposure and temperature fluctuations, offering a practical option for both exterior and indoor concrete repairs without promising guaranteed outcomes.

How to apply for best results

Prepare the surface by cleaning and drying the area. Attach the nozzle, squeeze to apply along the crack, and smooth with the included brush or scraper. Allow to cure fully; plan for 24 hours for a robust, ready-to-use finish. Remember that drying times depend on ambient conditions and surface temperature.