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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.

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

DESCRIPTION SPEC CS-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.