Full Product Manual

Grace Air & Vapor Barriers
PERM-A-BARRIER
®
WB PRIMER
Water-based primer for use with Perm-A-Barrier
Flashings, Detail Membrane and Wall Membrane
Description
Perm-A-Barrier
®
WB Primer is a water-based primer which
imparts an aggressive, high tack nish on the treated substrate.
It is specically designed to facilitate tenacious adhesion of
Perm-A-Barrier Flashings, Perm-A-Barrier Detail Membrane and
Perm-A-Barrier Wall Membrane
to various substrate including glass-mat faced gypsum sheathing.
Refer to Technical Letter 2, Substrate Preparation for Application
of Perm-A-Barrier Products to Glass-Mat Faced Gypsum
Sheathing for priming requirements on specic glass-mat faced
sheathing products.
Advantages
Excellent adhesion—bonds to substrate and binds dust
Aggressive tack—provides a tenacious bond to difcult
substrates such as DensGlass Gold and other glass faced wall
boards
Fast drying—increased exibility for application schedule
Fast and easy application—by brush or roller
VOC compliant—water-based, contains no hazardous or
ammable solvents
Low odor—no noxious fumes
Use
Perm-A-Barrier WB Primer can be used at 25°F
(-4°C) or above. It will freeze at 21°F (-7°C) and can no longer
be used after it freezes.
Availability
Perm-A-Barrier WB Primer is available in
1 gallon jugs and 5 gallon plastic pails.
Installation
Safety, Storage and Handling
Information
Perm-A-Barrier WB Primer is nonammable. Material Safety
Data Sheets (MSDS) are available at graceconstruction.com and
users should acquaint themselves with this information.
Carefully read detailed precaution statements
on product labels and the MSDS before use.
Store above freezing 32°F (0°C).
The VOC (Volatile Organic Compound) content is 10 g/L and
it meets the U.S. EPA Volatile Organic Compound Emission
Standard for Architectural Coatings.
Architectural and Industrial Maintenance Regulations limit the
VOC content in products classied as Architectural Coatings.
Refer to Technical Letters at graceconstruction.com for most
current list of allowable limits.
Product Advantages
Excellent adhesion
Aggressive tack
Fast drying
Fast and easy application
VOC compliant
Low odor
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