Description
NuFlex110 Butyl Rubber Caulk and Gutter Seal is a single component, designed to provide excellent exterior weathering properties. NuFlex110 is formulated for use on many dissimilar building surfaces. It is our best narrow-bead sealant. Ideal for sealing gutter downspouts, metal storm windows, doors, and lap joints. It adheres well to damp surfaces.
