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Blackhawk Hawk-Seal

Butyl Rubber Sealant

Blackhawk Hawk-Seal is a high-tack butyl rubber compound, used to seal the joints of underground concrete structures such as box culverts, manholes, concrete pipe, septic tanks, utility boxes and vaults. It comes in roll form and functions as a seal against infiltration and exfiltration. The high grade butyl content allows for year-round, consistent sealability. Composed of no asphalt, Blackhawk Hawk-Seal provides a special high-tack feature only found in butyl.
• Asphalt-free
• No special tools needed
• Retains flexibility in extreme temperatures
• Excellent chemical resistance
• Tolerates joint deflection
• Plastic film backing for easy, tear-resistant release
• Manhole joints
• Septic tank joints
• Pipe joints
• Box culverts
• Arches
• Grade ring joints
• Concrete bridge spans

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