Duro-Last Duro-Grip CR-20 - Manual (Page 4)

e. After the adhesive has attained its initial bond
strength the boards can be walked-in and will be
compressed to the deck or substrate exhibiting
minimal slippage or movement. The boards
should be exposed to minimum traffic for at least
10-20 minutes (depending on temperature) after
they have been walked-into-place to avoid
breaking the freshly formed bond.
f. Membranes can be applied once the adhesive
has achieved sufficient bond strength to the
immediate substrate to which it is adhered. It is
recommended that the contractor inspect the
installed insulation for proper adhesion and
re-adhere any boards and/or corners that are not
adequately attached.
g. Boards that will not lay flat due to cupping,
warping or crowning, or surface irregularities of
the substrate, should have weights placed on the
boards until the adhesive has achieved adequate
adhesion to hold the boards in place.
h. When spraying stops for breaks, lunch or
overnight repeat the purging procedure in
step # 2g.
i. Very Important: As the hoses are exposed to the
heat of the sun, especially in the summer months,
the pressure in the hoses will build up. Purging
the hoses for a few seconds prior to spraying
relieves the excess pressure and allows the
chemical to flow in the proper proportions.
5. Equipment Storage and Re-Use:
a. Turn the cylinder tank valves off.
b. Do not store at temperatures above 95 ˚F (35 ˚C)
or below 45 ˚F (7 ˚C).
c. The used nozzle should be left on the gun during
storage.
d. Engage the trigger safety lock.
e. Close the supply valves on both “A” and “B”
cylinders.
f. The dispensing gun is a disposable unit and is not
designed for prolonged storage or continuous
re-use. To help extend the storage life, it is
recommended to dispense a minimal amount of
foam from the gun at least once every seven days
to ensure optimum flow of chemical through the
hoses.
g. Use up the adhesive within 30 days of initial use.
h. Make certain valves are in correct position when
turning them on and when operating the unit.
6. Re-Use of Applicator Gun After Storage:
a. Before disengaging the trigger safety lock,
remove the used nozzle.
b. Check the face of the gun to make sure the outlet
ports are clear and the face of the gun is free from
dirt, chemical or other debris.
c. If necessary, use a rag to remove any cured foam
or chemical from the face of the gun.
d. See Equipment Set Up directions on the previous
page.
7. Disposal Procedures:
a. Do not puncture or incinerate cylinder tanks.
b. After cylinders are empty, they must be vented.
CAUTION:Tanks will still be under pressure. Eye
protection and impervious gloves MUST be worn
during the procedure.
c. With tank valve in opposite position of use, slowly
open the tank valve, point tank AWAY from face
and allow pressure to completely vent. CAUTION:
Empty tank could contain potential vapor toxicity
hazard. Provide adequate ventilation or
respiratory protection (consult MSDS).
d. DISPOSE OF EMPTY CYLINDERS
ACCORDING TO APPLICABLE FEDERAL,
STATE AND LOCAL REGULATIONS.
Duro-Last: The Proven Performer®
"Duro-Last" and "The World's Best Roof" are registered marks owned by Duro-Last , Inc.
www.duro-last.com 800-248-0280
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Wear eye protection and impervious gloves
May 20, 2010
DURO-GRIP

INSULATION ADHESIVE