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Moisture Seal

Moisture Seal

Above Ground Storage Tank Protection

Advantages
The Step-Ko Products Moisture Seal utilizes the combination of the SK2400 gel filler and the seal capabilities of the SM-65A fabric tape to form a moisture barrier between the concrete ring and steel ring interface. The chime seal tape is gray in color and is U/V resistant. The seal provides excellent adhesion characteristics to both the steel and concrete surfaces.

Typical Properties Typical Values Test Method
Thickness 65 mils  
Tensile Strength 50 lbs./in. Width (769 PSI) ASTM D 882 (Method B)
Puncture Resistance 200 lbs. ASTM E 154
Permeance – Perms 0.1 max ASTM E 96 (Method B)
Pliability at low temperatures (0ºF., -15ºF., -25ºF)* No cracks in fabric or rubberized asphalt ASTM D 146 (Modified)
Elongation 80 ASTM D 4632
Grab Tensile Strength 246 ASTM D 4632
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