Butyl Membrane for Precast Concrete and Metal
MarMac’s Butyl Wrap (C877 Type III) from H.B. Fuller is an extremely flexible sealant tape designed for use on precast concrete structure surfaces and joints. Butyl Wrap is perfect for making watertight seals on properly primed, below grade joints of manholes, stormwater & sanitary sewer systems, box culverts, irrigation systems, utility vaults, and more. It is also a great choice for sealing the seams of metal sheeting such as roof panels and Morton Building walls.
Butyl Wrap is comprised of a polyethylene film laminated to a 50 mil, pressure-sensitive tape. Its thin design allows it to be formed to fit irregular shapes and surfaces. Butyl Wrap comes in a variety of widths to fit the application at hand, and it meets or exceeds the ASTM C877, Type III standard for butyl-tapes.
Clean and dry surfaces are necessary for proper installation of this product. Butyl Wrap is not intended for use in conditions where it may come into direct contact with petroleum distillates such as gasoline, oil, kerosene, or other chemical solvents.
Features & Benefits
- Broad temperature range performance
- High tack & permanently flexible
- Fast & easy installation
- Long-term durability
- Excellent adhesion & formability
- Saves time & labor
| BACKING | WIDTH | THICKNESS | LENGTH |
|---|---|---|---|
| HDPE | 6″ (150 mm) | 0.050″ | 100′ (30.5 m) |
| EPDM | 9″ (225 mm) | 0.030″ | 100′ (30.5 m) |
| HDPE | 12″ (300 mm) | 0.050″ | 50′ (15.25 m) |
| EPDM | 12″ (300 mm) | 0.030″ | 50′ (15.25 m) |
| HDPE | 14″ (355 mm) | 0.050″ | 50′ (15.25 m) |
MarMac Butyl Wrap meets all requirements of ASTM C877, Type III.
| VALUE | METHOD | |
|---|---|---|
| Color | Black | Visual |
| Base Polymer | Butyl | N/A |
| Brittleness Temperature | -50°F (-46°C) | ASTM D 2137 |
| Service Temperature | -50-150°F (-45-65°C) | N/A |
All bonding surfaces should be clean, dry, and free of dirt, dust, debris, oils, and other contaminants. Do not stretch the sealant tape during application. Make sure to overlap the tape ends at least twice the tape width. Roll the tape to ensure good contact with the substrate.
When confronted with wet installation conditions or when temperatures are below 40°F (4°C), MarMac recommends the use of RB Adhesive Primer for increased adhesion.
AVAILABILITY
Roll widths: 6, 9, 12, 14″
Roll lengths: 50, 100′
Thickness: 0.05″, 0.03″
Backing: HDPE, EPDM
APPLICATIONS
Manhole Joints
Grade Ring Joints
Irrigation & Drainage
Box Culverts
Elliptical/Arch Pipe
Utility Vaults
Architectural Foundations
Stormwater Structures
Treatment Tanks
Wet Wells
Concrete Bridge Spans
Junction Boxes
