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Butyrate vs Acrylic in outdoor weathering valve stems


Recently Lisa Pugh of the Louisa County Water Authority paid us a visit. She brought some 2" and 3" pipe sections from Weir valves at a waste treatment plant. It is worth a picture to compare our butyrate tubing with the used acrylic tubing that she brought in.

Acrylic cannot survive long in an outdoor environment. We recommend UV Stabilized butyrate for all outdoor applications. CAB 576E has about the best UV stabilization in the business and, depending on location can last over a decade in outside environments.

To the right: Acrylic tubing from months-old to several years old. Notice the yellowing, to browning.  The tube (second to the left) was only in use for less than one year. With the color change comes easy breaking.

Butyrate tubing, even after some long-term stress cracking will remain structurally sound for years.

 

Typical valve-stem application
Typical valve-stem application

For butyrate properties:Eastman Chemical formula 576E


Charles Busada - 22-Sep-2016
 

 

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