Polyken filler tapes are designed as an underlying filler material prior to the application of Polyken coating systems. The elastomeric formulation is very conformable, making it ideal for filling in transition areas around T's, ells, valves, specials, welded and coupled field joints. The filler tapes maintain flexibility over a wide temperature range and under various conditions encountered in the field. , • Flexible under various field conditions
• Conformable and moldable
• Easy and simple application
• Compatible with Polyken coating
   systems.

Polyken # 939 is a thick mastic-like butyl rubber filler designed to fill and smooth transition areas. The semi-tacky composition remains flexible and is easily molded in place to conform around irregular shapes. Polyken 939 comes in roll and flat tape form in a variety of thicknesses to meet almost any job requirement.

Physical Property, #939

Thickness per ASTM D 1000, 125 mils (3.17 mm)

Peel Adhesion to Primed Pipe per ASTM D 1000, 300 oz/in (3.36 kg/cm)

Elongation per ASTM D 1000, >600%

Temperature Range, Continuous Service, -30° to 200°F
-34° to 93°C

Thickness configurations, Round stock, 0.5" - 2.0" (12.7 mm - 50.8 mm)
0.125" - 0.75" (3.2 mm - 19.1 mm)