Concrete & Mortar Crack and Hole Fillers for Easy Repair

The filler is applied in conjunction with Tech-Bond's Bonding Agent. You apply the Bonding Agent first, then sprinkle the silica sand Filler over it and repeat in layers. This layered process creates a chemically bonded, rock-hard mass that adds structural strength even where surface area is insufficient for a standard adhesive repair.

Yes. Once fully cured, the filled area can be drilled, tapped, sanded, and painted. This makes it suitable for applications where a cosmetically finished or structurally functional surface is required, such as construction repairs, metal fabrication, and general maintenance work performed by mechanics and tradespeople.

Tech-Bond's Filler is available in 35-gram, 70-gram, and 8-ounce bottles. It can be purchased as a single unit or in 5-pack and 10-pack multi-packs, with pricing ranging from $7.95 to $187.95. Multi-pack options are ideal for contractors, technicians, and facilities managing ongoing repair workloads.

The Starter Kit is a standard maintenance solution for general repairs. The Basic Kit (Ranch Kit) is tailored for mechanics, handymen, and farm use. The Deluxe Kit is a more complete all-in-one set including Bonding Agent, Accelerator, Poly Prep, and Filler — designed for professional technicians requiring reliable results across a wide range of materials and crack sizes.

For hairline cracks, choose the SI Green ultra-thin viscosity formula. Its extremely low viscosity allows it to penetrate and fill very narrow cracks that thicker formulas cannot reach. SI Blue (thin-medium) suits general repairs, while SI Black (thick) is best for precision or overhead applications requiring maximum control during placement.

Yes. Tech-Bond products are engineered for both shop and field deployment without requiring special equipment. They have been proven in demanding environments, including the repair of 78-inch HDPE pipe for Borouge in Abu Dhabi. Industry kits are also tailored for sectors including solar, taxidermy, and mining maintenance applications.