Technical data

5.) Check the pipe surface for any embed-
ded debris that may cause damage to scrap-
ing tools, and once more make sure that the
outer pipe surface is clean and free of any
dirt or mud that could recontaminate the
scraped pipe surfaces.
6.) Scrape the outside of the pipe surface to
remove oxidation and other contaminates.
Use an appropriate scraping tool as recom-
mended by Central Plastics. Scrape the
pipe surface until the outer layer or “skin” of
the pipe has been removed to expose a
clean, virgin pipe material. Inspect the entire
scraped area to ensure total scraping cover-
age. If a coupling is to be pushed com-
pletely over one pipe end, scrape the pipe
end for the entire length of the coupler to
prevent contamination of the coupler by
sliding over un-scraped pipe. Do not use
abrasives, grinding wheels, or other
devices that do not cleanly remove the
contaminated material.
NOTE: The purpose of scraping is to
remove material from the pipe surface.
Simply roughing the fusion area will not
allow an acceptable bond to take place.
7.) Avoid touching the scraped pipe surface
or the inside of the coupler as body oils and
other contaminates can affect fusion joint
performance. If the surfaces become con-
taminated, clean thoroughly with a clean, lint
free towel and a minimum 70% concentra-
tion of isopropyl alcohol and allow to dry
before assembling. Do not use alcohol
with any additives other than water.
CAUTION: AVOID ALL POSSIBLE RE-
CONTAMINATION OF THE PREPARED
SURFACE.
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