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AWWA C 214 tape coating system

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  • Materialpolyethylene basic material and butyl rubber
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AWWA C 214 coating system:

 

For normal construction considerations, prefabri-cated polyolefin tapes are applied as a

 three-layer system consisting of (1) liquid adhesive, (2) corrosion-preventive tape (inner layer), and (3) mechanical-protective tape (outer layer). This standard establishes the minimum requirements for tape

coating systems used on the exterior of steel water pipelines in the potable-water supply industry.

Corrosion preventive tape (inner layer tape )

The thickness is 0.50 mm, the width is from 50 mm to 300 mm, the length is from 100 ft to 1000 ft. the color is black.

 

Mechanical preventive tape (outer layer tape)

The thickness is 0.75 mm, the width is from 50 mm to 300 mm, the length is from 100 ft to 1000ft, the color is white or gray.

 

The liquid adhesive is black liquid. it is been brushed before wrap the inner layer tape.

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