Specification

Modern Masters
Revised May 2011
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Modern Masters Inc. [phone]
9380 San Fernando Rd., Sun Valley CA 91352
Metal Effects
®
Primer
(formerly Acid Blocking Primer)
Water Base Acrylic, Low VOC System
Brush, Roll or Spray apply
AM203
Modern Masters – Metal Effects Primer (AM203) is a
unique water-based acrylic primer. Unlike other
primers, it is especially formulated to block Metal Effects
Patina Aging Solutions and Activators from reaching the
metal, wood, or reactive substrate. This helps prevent
the formation of rust or other oxidation products from
forming under the paint film. Metal Effects Primer will
also block out alkali salts, tannins, acid salts, or other
unwanted contaminates from ‘bleeding through’ to the
Metal Effects Reactive Metallic Paint film and causing
adverse reactions and unwanted color changes in the
oxidized finish. Metal Effects Primer can be brush, roll
or spray applied.
Surface Preparation – Remove all loose, peeling paint.
Patch and repair any surface imperfections before using
the Metal Effects Primer. All surfaces should be sound,
clean and free of oil, grease, wax, and other
contaminants, and completely dry prior to priming.
Surfaces previously primed require light sanding. Scuff
sand any glossy surfaces. If unsure of the substrate,
test a sample area to ensure the desired results. Some
metal surfaces, such as bare aluminum, galvanized
metal, or rusted or slag metals, will need a specialty
primer from our recommended primer list, applied prior
to the application of Metal Effects Primer. If this is the
case, read the specific information for the
recommended primer prior to beginning your project.
Properly prime the clean, dry surface with the
recommended primer and allow the surface to dry
completely—preferably overnight. Then follow the
directions for applying Metal Effects Primer. Note:
Lower temperature and higher humidity will lengthen the
dry and cure times of primers.
Recommended Primers:
• Metal Effects Primer by Modern Masters
Substrates: previously painted surfaces, drywall,
drywall with texture, paneling and wall covering,
muslin or canvas, ferrous metal, PVC piping, finished
and unfinished wood
• Sierra Griptec by Rustoleum
• Sierra Metalmax Gray Primer by Rustoleum
Substrates: galvanized metal
• Mathys Pegalink by Rustoleum
Substrates: aluminum, anodized metals, copper
piping, window and door mullions.
• Mathys Peganox by Rustoleum
Substrates: rusting metal, slag metal
For MSDS and Technical Data Sheets for these primers
go to www.modernmasters.com and search in our
technical section of the web site.
For Additional Information and Architectural
Specifications visit ARCAT.com
and search for
Modern Masters Inc. or a specific product name.
Application – Stir will before use and occasionally
during application. DO NOT THIN! Apply at least two
coats of Metal Effects Primer using a brush, roller or
spray equipment. Do not apply in temperatures
below 55°F/13°C or above 95°F/35°C.
Brushing: Use a high-quality brush recommended for
water base primer.
Rolling: To roll use a high-quality 3/8” nap roller.
Spraying: To spray, use HVLP or quality airless spray
equipment.
Technical Data Sheet