Choosing Caulk for Concrete Block Joints: Polyurethane vs Hybrid vs Silicone (and why it matters)
Introduction Caulk for concrete block joints is a flexible sealant used to close gaps between concrete blocks to keep out water and air. Choosing the right sealant starts with the joint type and weather exposure, then applying it with the right tools. Keep in mind it should bond to masonry, cure properly, and be compatible […]










