© ARMACELL UK LTD.
D
APPLICATION MANUAL
4 - Covering >> Using Arma-Chek D Covering
Covering Of Insulated Objects >> Using Arma-Chek D Covering
RECTANGULAR BODIES
(ductwork, vessels)
To reduce labour time we recommend to install the
Arma- Chek D coverings to the ductwork in one
complete ”wrap-around“ application:
1. Measure the circumference of the ductwork and cut
the Arma-Chek D covering to the correct dimension,
allow for a 50 mm overlap of the fi xing seam. (Tip:
for bigger ducts surfaces a „step-by-step“ application
of the coverings in 2 or 4 sections may be the best
option where there is only one installer on the appli-
cation).
2. Follow “general procedures” (application of covering
material) step 2 (see page 15)
3. Allow the adhesive to “tack dry” (use fi ngernail test).
Position the Arma- Chek D covering and fi x to the
Armafl ex, ensure the covering is ”in-line“ and in the
desired position. Apply pressure and smooth the
covering around the insultions circumference avoid-
ing any ”air pockets“. Use a clean paint roller for this
job.
4. Seal the longitudinal seam of the covering with the
correct Armafl ex adhesive. Continue to install the
covering along the ductwork allowing for a 50 mm
overlap on all ”butt“ joints.
DUCTWORK BENDS & IRREGULAR SHAPES
1. Measure the length of the inner and outer ductwork
bend. Cut the Arma-Chek D covering to the correct
dimension.
2. Gluing following “General procedures” (application of
covering material) step 2 (see page 15).
3. Application of the cut pieces following the procedures
described before (see chapter “rectangular bodies”).
4. Apply an adaquate piece of covering on the lateral
face of the insulated ductwork bend. Cut this covering
alongside the edges of the duct channel.
5. Gluing of the butt ends of the covering material with
the correct Armafl ex adhesive.
Note:
a. For areas/locations where high ambient temperatures
can be expected we recommend to use the “feather-
ing technique” with 50 mm overlapping.
b. For outdoor application check the adhesive seams
and joints on the covering for any defects and rectify.
Apply a bead of Arma-Chek mastic along all seams
and joints. Always smooth in the mastic on all the
seams and joints to allow maximum bonding to
occur.
c. Allow for ”watershed“ where applicable on all external
locations.
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