CS-250 High Tack, Butyl Rubber Sealant
For 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 +49°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 | 8.0 cm |
| SOFTENING POINT, °F (RING AND BALL): | ASTM D36 | 350°F |
| PENETRATION, CONE 77°F (25°C): 150 gm, 5 sec. |
ASTM D217 | 60-70 mm |
| FLASH POINT, C.O.C., °F: | ASTM D92 | 400°F |
| FIRE POINT, C.O.C., °F: | ASTM D92 | 450°F |
| VOLATILE MATTER % BY WEIGHT: | ASTM D6 | 2 |
| HYDROSTATIC STRENGTH: | ASTM C990 | 10 psi for 10 minutes, min. |