• HOW TOs
  • Seal it Up with Slab Concrete Repair CaulkingStep outside and you’re likely to see a concrete crack in less than two seconds flat. They’re in driveways, sidewalks, garages, patios, pool decks, and basements. Cracks harbor weeds and anthills, and cause toe injuries (ouch!). They’re eyesores that never seem to go away. Changes in temperature, moisture, shifting soils, and traffic only make them worse. Enough is enough! Just say no to cracks. Use Slab®: The Serious Fix for Concrete Cracks. Slab® is an easy-to-apply water-based sealant that really stretches – up to 300% of original crack size! – to create a permanent, weatherproof repair that stands the test of time. Your knees and back will thank you for using a product that won’t require repeated repairs year after year. Slab® sticks, stretches, and stays to banish concrete cracks for good.

    Download Application Instructions

    Technical Data

    Slab is perfect for repairing large or small cracks in concrete, brick or stone including:

    • Sidewalks
    • Garages & Sheds
    • Driveways
    • Patios
    • Horizontal expansion joints

    Slab adheres to:

    • Asphalt
    • Brick
    • Mortar
    • Concrete
    • Stone
    • Stucco
    • EIFS
    • Wood
    • Cinder Block

    Don’t see your surface listed? Contact Customer Service for help.

    Do not use:

    • In areas of water submersion or frequent, prolonged puddling.
    • Will not adhere to or is incompatible with Aquaseal®, Kynar®, polypropylene, polyethylene, silicone, Teflon®, waxes


    NOTE: Lower temperatures and high humidity can slow cure time and affect Slab’s rain resistance. Be sure to protect fresh Slab with plastic sheeting or plywood if rain is expected within 24 hours after application.


    Aquaseal®, Kynar®, and Teflon® are registered trademarks of their respective owners.


    Check out our TV commercial for Slab.

    “I recently did a small concrete slab pour. I tried out your Slab caulking. I must say I was pleasantly surprised at how user friendly it was. It had a nice smooth consistency to it, flowed extremely well from the tube and tooled out very nicely. I also liked the finished look to it and it was very easy to clean up any over-application I did.” – Mike, Denver, CO Apartment Maintenance Manager

    “Beats any similar product by a mile. Actually looks and feels like mortar. I really goofed when I didn’t buy several tubes and ran out…Good stuff.” – Eddie Roberts, review

    “This stuff is really easy for a noob to work with, so if you’re feeling insecure about your skills, go for it. It goes into the crack thick and clingy, even at a vertical angle. More importantly, the excess is really easy to smooth and wipe/wash away. You have PLENTY of time to clean up your work before it dries. When it dries, it shrinks, has kind of a rubbery caulk-y texture, and it holds even completely severed pieces together snugly. The color is a middle grey and would match most concretes well. It’s just a very forgiving product with a nice finished result.” – Door, review


Photo Gallery


• Moves with your concrete: Extremely elastic to move with your concrete through changes due to shifting soils, temperature, moisture, and traffic to create a weatherproof seal that banishes dandelions, anthills, and other unsightly crack dwellers.
• Cuts down on repeated repairs: Just say no to brittle, cracked concrete repairs.  In addition to extreme elasticity, Slab® is specifically formulated with tenacious adhesion to concrete. This perfect balance of sticking and stretching translates into repairs that last for years, not just months.
• Won’t stick out: Textured and colored to blend in with aged concrete for a seamless appearance.
• Easy to use: Easy to smooth and clean-up with water. No special chemicals required.
• OK to leave in your unheated garage overnight: Freeze-thaw stable through 10 cycles.