Sika NP1 10.1-oz Exterior and Specialty Stone Paintable Advanced sealant Caulk

What Customers Are Saying

Customers overwhelmingly praise this caulk for exceptional durability and reliability, with most citing its ability to remain flexible, waterproof, and crack-free for decades under extreme weather conditions. Many highlight its buttery consistency, clean bead formation, and paintability without peeling or bubbling. Reviewers consistently note strong adhesion to dissimilar materials like metal-to-masonry and roof penetrations, making it ideal for demanding exterior applications. A few report tubes arriving hardened or mention lingering odor, but these represent minor concerns. Overall, customers consider this a trusted, long-term sealant that outperforms competitors.