High Performance Water-Proofing Membrane for Concrete Structures
MarMac SealWrap is a high performance, water-proofing membrane used for sealing the joints of concrete structures. SealWrap is produced in easy-to-transport and store rolls. SealWrap is designed to be heavy duty compared to other sealing membranes because it is reinforced with an internal layer of woven polypropylene for puncture and tear resistance. It is not appropriate for use over expansion joints or joints that move.
Features & Benefits
- Aggressive tack & initial adhesion to all concrete surfaces
- Continuous adhesion after backfill
- Puncture & tear resistant
- Infiltration & exfiltration proof
- Resistant to drying, oxidation & hardening
- Primer not typically needed
- Economical & effective
- Available in a range of widths & lengths
SealWrap meets or exceeds all requirements of ASTM C877, with the exception of Type lIl scope only covering butyl-based mastics and does not set material specs for bitumen-based mastics. MarMacʼs mastic exceeds the material specs set forth in C877 Type II which addresses the standard for rubberized asphaltic mastic.
Parts of ASTM C990 are commonly referenced for exterior wraps. SealWrap meets the physical requirements for Bitumen Sealants with the exception of the softening point. MarMacʼs mastic softening point is, by design, much lower (175°F) than the specified 320°F. Our material is designed for limited and controlled softening at any temperature above 40°F to achieve a unique initial tack strength and so the material continuously bonds with the concrete’s porous surfaces.
SealWrap should be stored in its original packaging, out of direct sunlight, protected from the elements. Material should be kept away from direct heat, sparks and open flame. For optimum results, couplers should be stored in a tepid (60-80°F) environment prior to installation.
|Penetration||60 dmm||90 dmm|
|Flow||10 mm||10 mm|
|Tensile strength||4000 psi|
|Elongation at break||100%|
|Tear resistance||1500 psi|
Repair kit available
Detention & Burial Vaults