Customers have also found that for best results, this product is best used with a putty knife. Homeowners also love that it’s so easy to use; there is no mixing required. Hello Select your address All Hello, Sign in. Use to repair cracks in concrete. How-To Videos | Download our Mobile App | This product is among the best in the market when it comes to performance, durability, and affordability. See more ideas about concrete, repair, repair cracked concrete. They have long been committed to manufacturing only top quality and safe sealants, whose efficacy and durability has been tried and tested by thousands of customers. bottle Just pour from the bottle. Homeowners are extremely pleased with how well Quikrete Concrete Crack Seal Natural performs, and most especially how easy and straightforward it is to use.