MarMac C 990
C 990 compliant butyl mastic sealant
Looking for a Premium Grade Black Butyl Based Sealant?
MarMac C 990 is a flexible preformed butyl based rope sealant designed to be (when used on precast concrete):
- Permanently flexible
- Resistant to moisture
- Resistant to deterioration due to exposure of dilute chemical solutions
MarMac C 990 self-seals joints in:
- Septic Tanks
- Box Culverts
- Concrete Pipe
- Concrete Valves
- Utility Valves
- Vertical Panel Structures.
MarMac C 990 meets the requirements of ASTM C 990 and AASHTO M-198. It is easily applied, permanently flexible creating a hydrostatic performance, and has no shrinkage. MarMac C 990 is also non corrosive and will not oxidize or harden with age.
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