|
We are specialized in the applicator
for field installation on pipe line operating between
40oC and 80oC in most cases these coating can be applied
without the necessity of removing the pipe line from
service or use of high steel preheat temperature, also
we are specialized in the application of heat shrinks on
the weld jointed pipes for any size.
The coating comes either as HTLP a sleeve for girth weld
coating and bell-hole repairs or as retroclad, a tape
for continues line coating, retroclad/HTLP consist of a
thick radiation cross linked polyolefin backing coated
with high-shear strength thermoplastic adhesive that is
activated by a curable liquid epoxy contains 100% solid
and cures upon installation of the sleeve or tape.
After applying the epoxy to a precleaned pipe surface
the HTLP sleeve is wrapped around the pipe and a
flexible closure is applied to form the sheet into a
tube.
Similarly, the retroclad tape can be continuously
wrapped around the pipe either by hand or by a
conventional tape wrapping machine. With both products,
the backing is heat recovered to provide an even tension
that forces the moltan adhesive to flow and fill around
all pipes irreoulantie. After application, the cured
epoxy bonds result in very high adhesive strengths to
both the steel and to the thermoplastic adhesive: these
high shear stunt materials or able to resist soll
stresses and backfilling.
The installed HTLP and retroclad products are both three
layer coating (epoxy, thermoplastic adhesive, and cross
linked polyolefin backing) that provides a tough,
reliable high performance corrosion prevention system
that is easily installed in field.
We have near about ten years experience in the heat
shrink field. |