2320 /2321 Gutter and Narrow Seam Sealant is a single-component, elastomeric, semi-self-leveling, high performance tripolymer sealant designed to prevent the passage of air and moisture through small joints or seams.

Adheres To

  • Asphalt shingles
  • brick (masonry)
  • concrete
  • glass
  • vinyl
  • wood
  • sheet metal
  • and other common building substrates.


  • Excellent adhesion to many building surfaces, even when damp or oily. 
  • Exceptional ultraviolet resistance.
  • Paintable.
  • Semi-self-leveling.
  • Cleans up easily.
  • Asphalt shingle compatible.