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CS-250 High Tack, Butyl Rubber Sealant

For self-sealing joints in: Metal to Metal, Metal to Concrete, Plastic to Plastic, Utility Vaults, Specialty Applications, and Burial Vaults. Not intended for use in expansion joints or joints that move.

Technical Data

SEALING PROPERTIES

  • Provides permanently flexible watertight joints.
  • Low to high temperature workability: 30°F to 120°F (-1°C to +48°C)
  • Rugged service temperature: -30°F to +200°F (-34°C to +93°C)
  • Excellent chemical and mechanical adhesion to clean dry surfaces.
  • Greater cohesive and adhesive strengths.
  • Sealed joints will not shrink, harden or oxidize upon aging.
  • Controlled flow resistance for application ease.
  • No priming normally necessary. When confronted with difficult installation conditions, such as wet concrete or temperatures below 40°F (4°C), priming the concrete will improve the bonding action. Consult Concrete Sealants for the proper primer to meet your application.

IMMERSION TESTING

30-Day Immersion Testing: No visible deterioration when tested in 5% Caustic Potash, 5% Hydrochloric Acid, 5% Sulfuric Acid, and 5% saturated Hydrogen Sulfide.

One Year Immersion Testing: No visible deterioration when tested in 5% Formaldehyde, 5% Formic Acid, 5% Sulfuric Acid, 5% Hydrochloric Acid, 5% Sodium Hydroxide, 5% Hydrogen Sulfide, and 5% Potassium Hydroxide.

Physical Properties

DESCRIPTIONSPECCS-250
COLOR:   Black
SPECIFIC GRAVITY, 77°F: ASTM D71 1.30
DUCTILITY, 77°F: ASTM D113 10.0 cm 
SOFTENING POINT, °F (RING AND BALL): ASTM D36 350°F
PENETRATION, CONE 77°F (25°C): ASTM D217 80-85 mm
150 gm, 5 sec.    
FLASH POINT, C.O.C., °F: ASTM D92 450°F 
FIRE POINT, C.O.C., °F: ASTM D92 450°F
VOLATILE MATTER % BY WEIGHT: ASTM D6 1.25
HYDROSTATIC STRENGTH: ASTM C990 10 psi for 10 minutes, min.
Safety Data Sheet
Installation Instructions