Safety Data Sheet (MSDS)
Weather-Tite One Step Membrane Adhesive is a fast setting,
solvent free, cold process membrane adhesive, that becomes waterproof
within minutes of application, and is designed for use with our patented
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 specialty pumps or spray rigs are required.
• Structural roof decking: concrete, gypsum, cemetitious wood fiber
(tectum), wood, steel or leightweight insulating concrete
• Base sheets (sanded or granule surfaced)
• Approved insulations ( multi-layer applications)
• Smooth built-up roof surface ( re-roof applications)
• For gravel surface BUR’s contact our
Technical Department for
For a complete list of approved
substrates or for additional information, contact
our Technical Department.
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.
Always load cartridges with the label side up. Dispense an initial amount
of Weather-Tite One Step Membrane Adhesive to ensure a proper mix.
4. Apply Weather-Tite One Step Membrane Adhesive directly
to the substrate using a ribbon pattern. Space 1/2"- 3/4" (1.3cm-
1.9cm) wide beads either 12" (30cm) , 9" (23cm), 6" (15cm)
o.c. (or in full coverage) to acheive proper coverage depending on project
specifications and requirements. As adhesive is applied, immediately set
membrane into wet adhesive. Do not allow the adhesive to skin over. Eliminate
un-even surfaces to ensure positive contact between the membrane and substrate.
5. Immediately broom or roll with weighted roller to ensure positive
contact between adhesive, membrane, and substrate and to eliminate the
possibility of ridging.
6. Un-used adhesive can be applied at a later date by simply plugging
the cartridges ( with provided half moon plugs) and using a new One Step
Do not apply to a wet surface
Not intended for insulation attachment
Keep temperature of contents between 65°- 85 °F (18° - 29°C)
24 hours prior to use.
Do not store in direct sunlight or high temperatures
(90 °F / 32°C and higher).
PACKAGING AND COVERAGE:
4-1.5L cartridges per case;
Each cartridge will produce in the range of 100-125 lineal feet (30.48m
- 38.1m)of 1/2"- 3/4" (1.3cm to 1.9cm) wide beads.
A four-cartridge case will produce approximately 400-500 lineal feet (121m
-152.4m) of 1/2"- 3/4" (1.3cm to 1.9cm) wide adhesive beads.
Coverage rates may vary when used over irregular surfaces.
BASIC USE: Weather-Tite
One Step Membrane Adhesive is designed for use as an adhesive for
adhering approved base sheets, vapor retarders and membranes to approved
Weather-Tite One Step Membrane Adhesive is a low odor, quick setting,
solvent free, formula that offers significant advantages over high odor,
slow setting, solvent based adhesives.
SURFACE PREPARATION: All work surfaces should
be clean, dry, free of dirt, dust, debris, oils, loose and/or embedded
gravel, un-adhered coatings, deteriorated membrane and other contaminants
that may result in a surface that is not sound or is un-even.
For re-cover applications apply Weather-Tite
Universal Primer prior to the application of Weather-Tite One Step
Membrane Adhesive. For applications over fresh and/or non-oxidized
asphalt, coal tar or plastic film membranes, apply Weather-Tite
Surface Treatmentprior to the application of Weather-Tite One Step
SAFETY: Prior to working with any product,
be sure to read labels and the Material Safety Data Sheet (MSDS).
Take necessary health and safety precautions.
FEATURES AND BENEFITS:
One Step Technology
• Easy to apply
• No Mixing
• No Temperature restrictions
• Low odor
• VOC compliant
• No flame hazards
• 100% solids
• Remains Flexible
• Absorbs Stresses