Duro-Last Duro-Grip Weather-Tite One Step - Manual

WTT Systems - Roofing Division
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A Millennium Adhesive Company
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888.564.9733
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wttus.com
One Step
™
Foamable Adhesive
PRODUCT DESCRIPTION
Weather-Tite One Step Foamable Adhesive is a highly
elastomeric, one-step, all-purpose, foamable adhesive
that contains no solvents, sets in minutes, and is designed
for use with our patented application process.*
Our One Step application process eliminates error due to
poor mixing. Application is quick and easy, resulting in
significant labor savings for the contractor. No expensive
specialty pumps or spray rigs are required.
BASIC USE
Weather-Tite One Step Foamable Adhesive is designed for
use as an adhesive for bonding approved roof insulations
to a building’s structural roof deck, base sheets, other
insulation boards, and smooth or properly prepared
graveled built-up roof surfaces.
Weather-Tite One Step Foamable Adhesive eliminates
the need for mechanical fasteners that can often cause
damage to the roof deck, which can reduce the roof’s
service life.
APPROVED INSULATIONS AND SUBSTRATES
Contact our Technical Department for a complete list of
approved substrates and insulation types.
Gypsum •
Cementitious wood fiber •
Lightweight insulating concrete •
Wood or steel •
Modified bitumen membranes •
and base sheets (sanded or
granule surfaced)
Approved insulations (multi-layer
•
applications)
Smooth or gravel surface built-up
•
roof (re-roof applications)
HD wood fiber •
Isocyanurate •
Perlite - minimum •
3/4” (1.9 cm)
Polystyrene
•
Gypsum cover •
board
Asphaltic cover
•
boards
Concrete
•
One Step Technology
Easy to apply, no •
mixing
No temperature
•
restrictions
Low Rise Foam
Eliminates •
minor surface
irregularities
Elastomeric
Remains flexible •
Absorbs stresses •
Better than Fasteners
No damage to structural decking •
Eliminates fastener back-out •
No noise associated with drilling •
No unsightly fasteners on •
exposed decks
No fastener or deck corrosion
•
Saves labor •
High strength •
No Solvents
Low odor •
No flame hazards •
100% solids •
FEATURES AND BENEFITS
APPLICATION
1. With a utility knife, remove the molded tips at the
groove from the One Step mixing head.
2. Attach a One Step mixing tip to the threaded mixing
head.
3. Place the cartridge into the appropriate One Step
applicator.
4. Apply Weather-Tite One Step Foamable Adhesive
directly to the substrate, using a ribbon pattern. Space
¼” to ½” (0.635cm to 1.27cm) wide beads, 12” (30cm)
o.c., to achieve proper coverage rates for insulation
attachment. As adhesive is applied, immediately place
insulation board into wet adhesive. Do not allow the
adhesive to skin over. Eliminate uneven surfaces to
ensure positive contact between the insulation board
and substrate.
5. Un-used material can be applied at a later date by
simply plugging the cartridges (with provided half moon
plugs) and using a new One Step mixing tip.