Make sure your concrete is fully cured before applying this sealant.ĭriveways, sidewalks, floors, and decks. This product generally does not require a primer for applications involving concrete. That means Loctite PL Concrete Non-Sag Polyurethane Sealant is the right choice: it’s a concrete caulk that is suitable for repairing cracks in vertical and horizontal surfaces and bonds to concrete, brick, stucco, metal, wood, vinyl, fiberglass, and other substrates. If you need to repair concrete, brick, stone, or masonry, you will need a product that forms permanent waterproof and weatherproof seals for all kinds of exterior gaps and joints and that can withstand harsh environments. Since Loctite never lets you down, it has a range of products that will make your project a success, whether you use them as concrete joint caulk or concrete sealants.įoundation, walls, and masonry. Not all sealants are suitable for all projects. When should you use which concrete sealant? You can carefully cut away cured concrete caulk with a sharp-edged tool. If necessary, do this in a well-ventilated area that opens up to the outdoors.
Clean your tools and any uncured sealant residue immediately upon completion of your project using mineral spirits. If you use Loctite PL Concrete Self-Leveling Polyurethane Sealant or Loctite PL Concrete Non-Sag Polyurethane Sealant, the depth of the concrete sealant you apply should be half the width of the joint. The instructions are generally valuable sources of information even within the same product family, sealants may have different cure times, for instance. Apply your concrete sealant with a steady pressure, forcing it into the joint in the proper direction – check the manufacturer’s instructions to find out if you need to fill joints from the bottom and when to perform dry tooling, if required. Make sure to prime and seal on the same day. Depending on the ambient conditions, your primer will be ready for sealant after 15 to 30 minutes. Let your primer dry before applying the sealant. Prime the surface if your concrete caulk requires primer. Test one joint or area before applying the concrete sealant to your entire project to make sure you get the results you want. Cut the nozzle to the desired bead size at a 45-degree angle and puncture the inner seal. Check for temperature restrictions for your product and make sure you can apply it under the planned conditions. #Concrete slab crack repair sealant skin
Wear gloves to protect your skin concrete sealant may cause temporary stains. 
It is a good idea to use a stiff, high-density backing material or backer rod for joints that might easily be punctured-for instance, in areas where stilettos are worn. If you use a fluid cleaner, let the area dry before you apply the concrete sealant.
Clean the surface of all dirt and debris, including unsightly stains on the area you want to seal, and remove any substances like oil, grease, wax, and mastic compounds.
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