Duro-Last Water-Based Adhesive User Manual
Duro-last, Wb ii adhesive, Data sheet
DATA SHEET
DURO-LAST
®
WB II ADHESIVE
“Duro-Last” and “The World’s Best Roof” are registered marks owned by Duro-Last, Inc.
Revised 1/21/2011
www.duro-last.com 1 of 2
800-248-0280
Description:
Duro-Last® WB II Adhesive is a polymeric
waterborne adhesive used to bond both Duro-Last
membrane and Duro-Last Fleeceback membrane to a
variety of substrates on both horizontal and vertical
surfaces.
WB II Adhesive has VOC content less than 250 g/L
and meets all VOC restrictions and regulations in the
United States.
WB II adhesive may be used on the following
substrates after they have been properly prepared as
described in either the Duro-Last Adhered Fleeceback
Roofing System specification or the Adhered Systems
specification. The installing contractor is responsible
for following all applicable building, plumbing and
electrical codes.
Structural Concrete (poured in place or precast)
Wood (Plywood, OSB or Lumber)
Polyisocyanurate Rigid Insulation Board
DensDeck
®
Prime Roof Board
DensDeck
®
Roof Board (not recommended)
SECUROCK
®
Gypsum-Fiber Roof Board
Material Safety Data Sheet (MSDS):
Product Name: Duro-Last WB II Adhesive
Trade Name: Waterborne PVC Adhesive
MSDS Number / Product Code: FA636.
Precautions:
1. Review MSDS for safety information prior to use.
2. Combustible. Do not expose to heat, flame or
sparks. Do not smoke while applying.
3. Use only in well ventilated areas and avoid
breathing vapors.
4. Keep container closed when not in use.
5. When transferring adhesive between containers,
ensure that both containers are grounded.
6. Treat empty containers with caution since they may
contain flammable vapors.
7. Keep adhesive from freezing.
8. The shelf life for an unopened container of this
adhesive, stored at temperatures between 60 °F
(16 °C) and 80 °F (27 °C) out of direct sunlight, is
1 year from the date of manufacture.
DURO-LAST WB II PHYSICAL PROPERTIES
Packaging
5 gallon pail
Weight
9 lb. / gallon
45 lb. / pail
Color White
VOC Content
179 g / L
Viscosity
10,000 – 16,000 cps
Total Solids
52% ± 3%
Open Time
Up to 3 hours
Shelf Life
1 year, unopened
Coverage - Duro-Last Fleeceback Membrane
Roof Deck
100-120 ft² / gallon
(500-600 ft² / pail)
0.8–1.0 gallon / 100 ft²
Vertical
Applications
Not Applicable
Use Duro-Last Fleece Membrane Adhesive
Coverage - Duro-Last Membrane
Roof Deck
140-180 ft² / gallon
(700-900 ft² / pail)
0.55–0.7 gallon / 100 ft²
Vertical
Applications
180 ft² / gallon
per surface for net
coverage of 90 ft²
0.55 gallon / 100 ft²
per surface