Butyl Tape vs Butyl Sealant: What's the Difference?
Butyl tape and butyl sealants are both used to create watertight seals, but they are designed for very different applications. Choosing the right one depends on the type of joint, surface, and installation method.
What's the difference?
Butyl Tape
- Thin, flexible, adhesive-backed material
- Used between flat or overlapping surfaces
- Designed for surface sealing applications
- Easy to cut and apply
Butyl Joint Sealant
- Thick, rope-like material
- Used in concrete joints
- Creates a compression-based watertight seal
- Designed for structural or underground applications
| Feature | Butyl Tape | Butyl Joint Sealant |
| Form | Tape (flat) | Rope (thick) |
| Application | Surface sealing | Concrete joints |
| Installation | Adhesive placement | Compression type fit |
| Best For | Panels, ducts, seams | Precast, underground |
Recommended Products
EX 208 Butyl Tape
A highly adhesive, tacky butyl tape designed to bond to a wide range of surfaces.

EX 281 Trimmable Butyl
Is a flexible, trimmable butyl tape designed for sealing irregular or uniquely shaped joints.


