PARTIALLY REINFORCED COATING SYSTEM
The Acrymax ARS-2-A25 Elastomeric Roof
System is a partially reinforced fluid applied
elastomeric roof system used for protection,
maintenance and weatherproofing of smooth or
granulated surface asphalt substrates including
existing BUR and modified bitumen roofs. Roof
penetrations, flashings, and other critical areas
of the roof are reinforced and then the roof is
covered with a high performance elastomeric
coating system. The ARS-2-A25 System once
applied provides the basis for a sustainable and
easily maintainable system. The long-term cost
benefits offered by this state-of-the-art
technology include lower life cycle costs and
energy savings. Acrymax coatings are VOC
compliant waterborne materials that provide an
environmentally responsible method for roofing
and weatherproofing applications. Average
membrane thickness of the ARS-2-A25 System
is 25 mils on the un-reinforced areas and 45
mils on the reinforced areas.
The materials used in the ARS-2-A25 System may include but not be limited to:
• AF-130BC Basecoat
• AF-130 Finish Coat
• Poly-1 Polyester Reinforcement Fabric
• AF-127 Acrylic Primer
• AF-9000 Modified Asphalt Emulsion
• AF-315 Fibrated Acrylic
3. APPLICATION EQUIPMENT
Acrymax AF-130 roof coatings can be applied
by brush, roller, or spray. Airless spray is the
most efficient method of application where
proper conditions and expertise exist. Spray
equipment should be capable of 2500 – 3000
psi with output of 2 - 2.5 gallons per minute. A
“Reverse-a-Clean” tip with tip size .027 to .041.
Application by roller or brush may require
additional coats to achieve uniform membrane
thickness, but material requirements will
generally remain the same. Rollers should be
medium or long nap. (3/4” recommended)
Installation of the ARS-2-A25 System is accomplished in five (5) basic steps:
(c) Installation of Reinforcement
(d) Application of Coatings
Acrymax AF-130 roof coatings must have a
clean surface to adhere to. Proper surface
preparation is the key to successful
applications. All dirt, debris, oils etc. must be
removed by the most effective method possible.
High-pressure water (2500 psi) is the
recommended method. Vacuuming, stiff
brooming, and low-pressure water washing can
also be used. When high-pressure water
washing is used it should be done at a pressure
suitable to remove embedded dirt and
contaminants without damaging the roof and
care must be taken to make sure that water
does not intrude into the building or the existing
roofing system. If pressure washing is not
possible then an appropriate primer should be
used (consult Acrymax). Priming is not a
substitute for proper cleaning. Roofs that have
previously been coated with aluminized asphalt
coatings and heavily oxidized roofs must be vigorously prepared to provide a clean surface
and then primed with AF-127 or an asphalt
primer. AF-9000 Modified Asphalt Emulsion
should be used on heavily alligatored roof areas
as a filler coat prior to application of the ARS-2A25
system. Application rates for AF-9000 can
range from 1-6 gallons per 100 square feet
depending on severity of alligatoring. Prime
granulated surfaces with AF-127 Primer at the
rate of 1 gallon per 250 square feet.
A tape test should be used to determine
acceptability of cleaned surface for coating
application. This is done by applying masking
tape to the surface to be coated, and then
peeling off the tape. If the adhesive side of the
tape shows contaminants that will interfere with
the adhesion of the coatings, then further
cleaning or use of a primer may be necessary.
All necessary roof repairs must be done
according to good construction practices.
Acrymax roof coatings should not be applied
over roofing, insulation, or related materials that
are saturated with moisture. For applications
over existing roof systems a complete
inspection must be made, including core cuts
and moisture detection scans where necessary,
to determine if and where excess moisture
exists. Any wet insulation must be replaced with
new materials of equal thickness and the area
repaired to bring level with existing roof surface.
Acrymax AF-130BC should be used with Poly-1
polyester reinforcement fabric in appropriate
widths to repair and reinforce all defective areas
in the existing roof surface. Acrymax AF-315
Fibrated Acrylic or Asphalt roof cement should
be used to fill all cracks as necessary.
(c) Installation of Reinforcement
Before application of roof coatings verify that
the surface to be coated is cleaned and
prepared properly. At any time during
application of the Acrymax system if roof
surface becomes contaminated with dirt, dust or
other materials that will interfere with adhesion
of the coatings then cleaning measures must be
taken to restore the surface to a suitable
All flashings, roof penetrations, transitions, and
other detail areas requiring reinforcement should be completed with Poly-1 and Acrymax
AF-130BC in the following manner:
1. Apply liberal coat of AF-130BC to area to be reinforced.
2. Immediately embed the appropriate width Poly-1 polyester fabric into this wet coat of AF-130BC. Apply without wrinkles, air pockets, or fishmouths. Poly-1 Fabric is available in 4, 6, 12, 18, and 40 widths.
3. Apply additional Acrymax AF-130BC to completely saturate fabric. Total AF-130BC used to embed and saturate Poly-1 should be 3 gallons per 100 square feet of reinforced area.
|Estimated Acrymax AF-130BC per 100 linear feet required to install Poly-1 Fabric Reinforcement:
Note: The estimated material requirements are for coating materials that are required for the tack coat that is used to embed Poly-1 and for the saturating coat that is applied after reinforcement has been installed. Areas that are reinforced must be coated again with each subsequent application of coatings that are part of the system. Special attention should be given to insure complete and adequate coverage at these critical areas.
(d) Application of Coatings
Apply Acrymax elastomeric roof coatings to produce monolithic roof membrane with specified dry film thickness. Contrasting colors should be used for each coat. White is the suggested finish color for energy efficiency and reduced thermal stress on the roof. Dust should be blown off of surfaces to be coated with compressed air or blowers immediately before application of coatings.
1. Basecoat – Apply 1st coat of elastomeric coating using Acrymax AF-130BC applied in a uniform manner at the minimum application rate of 1.25 gallons per 100 square feet per coat. Allow to dry.
2. Intermediate Coat – Apply 2nd coat of elastomeric coating using Acrymax AF-130 applied in a uniform manner at the minimum application rate of 1.25 gallons per 100 square feet. Allow to dry.
3. Finish Coat – Apply 3rd coat of elastomeric coating using Acrymax AF-130XT applied in a uniform manner at the minimum application
rate of 1.5 gallons per 100 square feet.
Notes: Each coat should be applied in a perpendicular direction to the previous coat. During application of the coating system special attention should be given to flashings and any other critical areas so as to build required membrane thickness. When applied by roller additional coats may be necessary to achieve uniform film thickness. Total material requirements will stay the same. All specified material must be applied and minimum membrane thickness achieved.
Inspect entire roof area and touch-up deficient
areas with additional Acrymax AF-130 as
necessary to insure complete and uniform
coverage. Special attention should be given to
critical areas of roof such as flashings, repaired
areas, roof penetrations, etc.
These are general guidelines for application of
the Acrymax ARS-2-A25 System. The material
requirements may vary depending on the
specific job requirements. If unusual conditions
exist, contact Acrymax Technical Service at
610-566-7470. Acrymax Fluid Applied
Elastomeric roofing systems must be applied to
structurally sound substrates. All surfaces must
be clean and dry before application of roofing.
The suitability of Acrymax coatings or systems
for an intended use shall be solely up to the
user. Drying time and coverage are not
guaranteed. Acrymax roofing systems must not
be applied over wet insulation or related
materials. Failure of the substrate does not
constitute failure of the Acrymax coating or
system. Acrymax systems are designed for use
on well drained roofs; however, they are
acceptable for use where poor drainage causes
temporary ponding. Acrymax Coatings should
not be applied when rain or freezing
temperatures are expected before coating is
Acrymax offers limited material warranties for
the ARS-2-A25 System when all materials are
used in strict accordance with all of Acrymax’s
written requirements and recommendations and
required dry film thicknesses are achieved.
Acrymax’s sole responsibility under this limited
material warranty is for defective material and
Acrymax’s obligation shall not exceed the
purchase price of the Acrymax materials used
or part thereof proven to be defective. Submittal
of required documentation is required for
warranty. Consult Acrymax for details. This
warranty gives specific legal rights and you may
have other legal rights that vary from state to
state. No statement by anyone may supersede
this limited material warranty, except when
done in writing by Acrymax’s Technical Service
Office in Media, PA. Specific jobs that meet
certain requirements, are pre-approved by
Acrymax, and are applied by an Acrymax
approved applicator may qualify for system
warranties covering labor and material. (Consult
1. Acrymax coatings are waterborne. Consequently application of these materials must not be done when rain or other conditions such as fog or heavy dew are possible before coating can dry sufficiently to be resistant to these occurrences. Drying time is affected by numerous factors including temperature, direct sunlight, relative humidity, air movement, thickness and color of applied coating, etc... Under proper conditions dry times for coatings will be from 2 to 4 hours, but under adverse conditions dry times can range to 12 hours or more. Application should not be done when temperatures are below 45°F or expected to drop below freezing before coating is dry. Special attention should be given to the dew point temperature because when this temperature is reached and dew forms the drying process of the coatings will cease.
2. Coatings should be allowed to dry thoroughly between coats. Minimum dry time between coats is 4 hours.
3. During extremely hot conditions do not apply coatings, or apply coatings in thinner applications to prevent blistering. Additional coats will be required to achieve specified dry film thickness.
4. The material requirements specified herein are for typical conditions. The number of gallons required may need to be increased to account for uneven application, applicator inefficiencies, surface texture, or other conditions. In all cases minimum dry film thickness must be achieved.
5. Surfaces must always be clean before application of AF-130 Coatings. Care must be taken to insure that on-site manufacturing emissions or extended time intervals after original cleaning do not interfere with any stage of the coating applications. If either condition occurs then cleaning may be required again.
6. Adequate coating thickness is essential to performance. If the applicator is unfamiliar in gauging application rates, we suggest that a controllable area be measured and the specified material be applied. In all cases all minimum specified material must be applied and proper minimum dry film thicknesses must be achieved. Care must be taken to insure that all areas completed including all flashings, roof penetrations, etc. are coated sufficiently to insure a watertight seal.
7. Consult ACRYMAX TECHNOLOGIES if any deviations from published specifications are considered. Unapproved deviations from installation guidelines and specified material requirements may seriously affect the coating system performance, and shall be undertaken at the specifiers, applicators or building owners own risk.
8. Applicator must comply with all applicable local, state, and federal regulations if lead based paint or other hazardous materials are encountered.
9. Roofing is hazardous work and coatings are very slippery when wet. Comply with fall protection rules and regulations.