Duro-Last Duro-Fleece CR-20 Membrane Adhesive - Manual

DATA SHEET
D URO-FLEECE
®
CR-20 MEMBRANE ADHESIVE
“Duro-Last”, “Duro-Fleece”, “Duro-Guard” and “World’s Best Roof” are registered marks owned by Duro-Last, Inc. 3/22/2013
www.duro-last.com 1 of 2 800-248-0280
Figure 1. A/B Tank Kit, Hose/Gun Kit, Wrench and Nozzles
Figure 2. Applying adhesive in splatter pattern
Figure 3. Splatter Pattern
Description:
Duro-Fleece
® CR-20 Membrane Adhesive is a two
component adhesive used for adhering Duro-Fleece ®
membrane to a variety of substrates in both new and
re-roof applications. It is spray applied in a “splatter
pattern” (Figure 2) onto an approved substrate. The
splatter pattern should be evenly distributed and
coarse textured with a thickness between ¼ and
½ inch (Figure 3).
Duro-Fleece CR-20 Membrane Adhesive contains less
than 250 g/L of Volatile Organic Compounds (VOC)
and meets all VOC restrictions and regulations in the
United States.
Note: Only standard formulation may be used to
adhere Duro-Fleece membrane. Do not use cold
weather formulation for this application.
Acceptable Substrates:
The substrate onto which Duro-Fleece membrane is to
be adhered must be properly prepared as described in
the Duro-Fleece Adhered Roofing System
Specification. The substrate must be smooth and level
without significant surface irregularities or
depressions.
It must be clean, dry and free of grease,
dust and loose debris. Do not apply to wet or damp
surfaces. Concrete and gypsum decks must be cured
prior to installation. The installing contractor is
responsible for following applicable building, plumbing
and electrical codes.
Duro-Fleece CR-20 Membrane Adhesive may be used
to adhere Duro-Fleece membrane to the following
substrates:
 Structural Concrete (poured in place or precast)
 Gypsum (poured in place or precast)
 Lightweight Concrete (insulating or cellular)
 Wood (Plywood, OSB or Lumber)
 Smooth Built-Up Roofs
(BUR)
 Duro-Guard ® Polyisocyanurate Insulation
 DensDeck ® Prime Roof Board
 DensDeck ® Roof Board
 SECUROCK ® Gypsum-Fiber Roof Board
 SECUROCK ® Glass Mat Roof Board
Adhesion Test:
When adhering to an existing roof, an adhesion pull
test must be performed to determine the uplift value
of the existing roofing system and the adhesion value
of the new roof to the existing roof.
Precautions:
1. Read MSDS for Part “A” and Part “B” prior to using.
2. Wear proper personal protective equipment, such
as gloves and eye protection, per the MSDS.
3. Each A/B Tank kit comes with a “Directions for Use”
sheet which must be read prior to using the
product. The sheet includes detailed instructions on
how to set up the tanks, hose and gun in order to
get the most efficient use of the adhesive. It also
includes details on proper storage and disposal of
the adhesive.