NGBNGB NGBC70 Concrete Crack Filler, 6 lb Gray Quartz Sand Mortar Kit

Quartz sand reinforces this dry granular mortar formula for filling concrete cracks, holes, chips, and damaged corners. The gray repair mix is designed for indoor and outdoor concrete work. Use it on surfaces such as driveways, sidewalks, patios, steps, garage floors, and walls. A scraper, brush, and gloves are included for the repair process.

Specifications

This 6 lb repair kit contains a powder made with high-strength concrete, quartz sand, and a water-retaining agent. Its cement-based formula is intended for patching and renewing concrete, including worn floor surfaces and chipped edges. The mortar is water resistant and designed for indoor and outdoor use, including repairs exposed to rain, freeze-thaw conditions, and everyday traffic.

Mix the powder with water at a 100:13–15 ratio by weight: add 13–15 g of water for every 100 g of powder. The stated approximate measure is 2.1–2.4 oz of water per 1 lb of powder. Mix thoroughly until the mortar is smooth and workable. This dry-mix format lets you prepare the mortar for a specific repair rather than applying it straight from a ready-to-use container.

Getting the most from it

Start by removing dust, loose debris, and weak concrete from the repair area. Press the mixed mortar firmly into suitable cracks, holes, chips, or damaged corners. For worn concrete surfaces, spread the mortar over the area being repaired. Smooth the application within 20–30 minutes, then allow 24–48 hours for a full cure.

For example, this process can suit a chipped patio edge or a hole in a concrete walkway: clear away loose material, prepare the powder-and-water mix, press it into the damaged section, and smooth the surface within the working window. The quartz sand formula supports dense filling and bonding, while the range of listed applications makes the kit useful for both localized patching and surface renewal. It is intended for concrete, so choose it when the repair calls for a cement-based mortar rather than a product for a different surface material.

What you get

The kit includes the gray concrete repair powder, one scraper, one application brush, and one pair of gloves. These tools support preparation and application, from brushing away debris to pressing and smoothing the mortar. The 6 lb package is suited to concrete repairs around the home, including work on patios, steps, garage floors, driveways, and walls.

Buying verdict

Choose this kit for concrete repairs that need a dry mortar mix for filling cracks, holes, chips, or worn areas indoors or outdoors. Its quartz sand formula, defined mixing ratio, and included application tools make it a practical fit for hands-on patching across several common concrete surfaces. For a homeowner refreshing a walkway or repairing a chipped step, it brings the repair material and basic tools together in one kit.