Roof Sealant: SeamStitch Butyl Tape 4" x 50' —
Skip to content
Use coupon code WELCOME and get 15% off your first order.
Use coupon code WELCOME and get 15% off your first order.

SeamStitch Butyl Tape 4" x 50'

by Lexis
Save 4% Save 4%
Original price $46.00
Original price $46.00 - Original price $46.00
Original price $46.00
Current price $44.00
$44.00 - $44.00
Current price $44.00

SeamStitch Butyl Tape is a high-performance, pressure-sensitive tape designed for sealing around flashings, curbs, and penetrations. It can also be used to membrane roofs such as EPDM, TPO, and PVC.  It provides a durable, elastic seal that adapts to movement and temperature changes, ensuring long-term waterproofing and weather resistance. 


  • Metal Roofs:  Ideal for sealing laps and preventing leaks.
  • Asphaltic Roofs:  Used to maintain and repair seams in modified bitumen roofs.
  • Single Ply Roofing: Suitable for repairing joints in EPDM, PVC, and TPO roofs, bridging tears, and ensuring water tightness.


  • Elastic seal that adapts to movement and temperature changes
  • Sticks well to various surfaces like asphalt, concrete, metal, and more​
  • Withstands harsh conditions and UV exposure​
  • Provides an effective barrier against water infiltration​ 
  • Ready to use without thinning, suitable for brush, roller, or sprayer​ 
  • Maintains a clean appearance over time​ 
  • Effective in both low and high temperatures​ 
  • Clean the application area thoroughly, removing all dust, debris, and oils. Allow the surface to dry completely.
  • Measure the required length and cut the tape to size with household scissors.
  • Peel off a small section of the backing and position the tape at the starting point. Gradually peel away the backing while pressing the tape firmly onto the surface.
  • Press down firmly along the entire length to ensure a secure bond. Use a roller or flat-edge tool to eliminate air pockets and ensure a smooth application.
  • Check for gaps or misalignments, reposition if necessary, and ensure all edges are securely bonded. Once applied, the area is immediately waterproof and ready for use.
  • Color: Gray
  • Sizes: 3″, 4″ & 6″ wide, 50′ long
  • Tensile Strength: 475 psi
  • Elongation: 60%
  • Peel Strength: 10 lbs. per linear inch
  • Fluid Absorption: Excellent for coatings
  • Shelf Life: 18 months to 2 years

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare