Sime Planet Dewy 30 BFT Notice De Montage, D'utilisation Et D'entretien page 14

ENG
FR
(bonded) part of the joint.
Solvent Cementing with Primer
(installation temperatures 0ºC - 32°F or
less).
Note: Some jurisdictions have mandated
the use of primer regardless of temperatu-
re (i.e. Alberta). Verify with your local juri-
sdiction's authorities.
1. Assemble proper materials for job (pro-
per cement and applicator for the size of
piping system to be assembled).
2. Pipe must be cut as square as possible.
Use a hand saw and miter box or mecha-
nical saw. A diagonal cut reduces bonding
area in the most effective part of the
joint.
3. Plastic tubing cutters may also be used
for cutting plastic pipe; however, some
produce a raised bead at the end of the
pipe. This bead must be removed with a
file or reamer, as it will wipe the cement
away when pipe is inserted into the fit-
ting.
4. Remove all burrs from both the inside
and outside of the pipe with de-burring
tool. Failure to remove sharp edges can
result in a plowing effect on applied
cement when assembling the joint.
5. Remove dirt, grease and moisture. A tho-
rough wipe with a clean dry rag is usually
sufficient. (Moisture will retard cure and
dirt or grease can prevent adhesion).
6. Check pipe and fittings for dry fit before
cementing. For proper interference fit,
the pipe must go easily into the fitting
1/3 to 2/3 of the way. Should the dry fit
be outside this range, do not proceed and
contact the System 636 supplier for
further instruction.
7. Use the right applicator for the size of
pipe or fittings being joined. The applica-
tor size should be equal to 1/2 the pipe
diameter. It is important that a satisfac-
tory size applicator be used to help ensu-
re that sufficient layers of cement are
applied.
8. Priming; the purpose of a primer is to
penetrate and soften the surfaces so
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they can fuse together. The proper use of
System 636 primer and checking its sof-
tening effect provides assurance that the
surfaces are prepared for fusion in a
wide variety of conditions. Check the
penetration or softening on a piece of
scrap before you start the installation or
if the weather changes during the day.
Using a knife or other sharp object, drag
the edge over the coated surface. Proper
penetration has been made if you can
scratch or scrape a few thousandths of
the primed surfaces away. Because
weather conditions do affect priming and
cementing action, repeated applications
to either or both surfaces may be neces-
sary. In cold weather more time is requi-
red for proper penetration.
9. Using the correct applicator, aggressively
work the primer into fitting socket, kee-
ping the surface and applicator wet until
the surface has been softened. More
applications may be needed for hard sur-
faces and cold weather conditions. Re-dip
the applicator in primer as required.
When the surface is primed, remove any
puddles of primer from the socket.
10. Next, aggressively work the primer on
to the end of the pipe to a point 1/2"
(13 mm) beyond the depth of the fitting
socket.
11. A second application of primer in the
socket is recommended.
12. Immediately and while the surfaces are
still wet, apply the appropriate System
636 cement.