Visit our website: www.jsicoatings.com
Call: (936) 321-3333
Email: steve@jsicoatings.com

Tuesday, April 30, 2013

How Wide of a Shrink Sleeve is Needed?

     This is one of the most commonly asked questions in our world.  A shrink sleeve needs to be wide enough to cover all bare steel of the field joint AND overlap onto either side of the adjacent factory applied coating by at least 2 inches (50mm) per side.

     It is important to note that while some end users are comfortable with a 2 inch overlap per side; many do require 3, 4 or sometimes even 6 inches of overlap onto either side of the factory applied coating.  As a common rule of thumb, it is reasonable to accept that most factory applied coatings do have standard cutbacks.  It is always dangerous to assume, though - so be careful!


Standard Cutbacks of the more commonly used factory applied coatings in the USA
Fusion Bonded Epoxy (FBE) - 2 to 3 inches per side (commonly uses an 11" wide shrink sleeve)
Two Layer PE - 5 to 6 inches per side (commonly uses a 17" wide sleeve)
Three Layer PE - 5 to 6 inches per side (commonly uses a 17" wide sleeve)
Three Layer PP - 5 to 6 inches per side (commonly uses a 17" wide sleeve)
Coal Tar Enamel - 2 to 3 inches per side (commonly uses an 11" wide shrink sleeve)
Zaplock Pipe - commonly uses a 34" wide sleeve


No comments:

Post a Comment