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Products |
Bestile™
Industrial Roof Cement

Description
Bestile Industrial Roof Cement is a premium grade mastic designed for use in the construction of professional roof flashings and details. It is a
blend of selected asphalts, non-asbestos fibers, selected fillers and petroleum solvents. This is a high quality product, supplied in a smooth,
easy-working consistency, which adheres to wet and dry surfaces. Bestile Industrial Roof Cement resists slumping yet remains plastic.
Therefore, it may be used on both vertical and horizontal surfaces. It has a high resistance to weathering and provides excellent durability
against the stresses and wear to which flashing adhesives are normally exposed.
Use
Bestile Industrial Roof Cement is designed as a waterproof adhesive component of base flashings, projection and penetration flashings for
commercial/industrial roofing systems. It is also an excellent sealant for counterflashings. It is used where dissimilar materials must be joined
and sealed watertight. Bestile Industrial Roof Cement may be used as a flashing adhesive on both vertical and horizontal surfaces. It may be
used for repairing bituminous roof surfaces and for waterproofing and flashing where a heavy duty product is required. Because of its ability to
bond to damp and wet surfaces, it may be used for emergency repairs. It has the necessary body, consistency and resiliency to maintain a
strong, waterproof bond during varying temperature and weather conditions.
Caution Combustible. Bestile Industrial Roof Cement contains petroleum distillate. To minimize risks:
- KEEP AWAY FROM HEAT, SPARKS AND OPEN FLAME
- AVOID PROLONGED CONTACT WITH SKIN
- AVOID PROLONGED OR REPEATED BREATHING OF VAPOR
- AVOID CONTACT WITH EYES
- DO NOT TAKE INTERNALLY
- USE WITH ADEQUATE VENTILATION
- KEEP CONTAINER CLOSED WHEN NOT IN USE
- KEEP OUT OF REACH OF CHILDREN.
Application
All surfaces must be clean and free of oil, grease, rust, scale, loose paint, dirt and debris. Porous surfaces require priming with JM Concrete
Primer. Primer must be allowed to dry prior to the application of Bestile Industrial Roof Cement. Bestile Industrial Roof Cement is applied with
a trowel, in a thickness of 1/ 8" (3 mm). Do not apply in thickness exceeding ¼" (6 mm). Apply cement liberally in joint areas, seams or cracks.
Work the cement to a feather edge to provide a smooth transition and facilitate drainage. The cement should be reinforced with roofing felt,
base flashing sheets or glass fabric. For best results in cold weather, store unopened containers in a warm area for at least 24 hours prior to
application. Equipment and tools can be cleaned with kerosene or mineral spirits immediately after use. Use extreme care when handling
solvents.
Coverage
Bestile Industrial Roof Cement should be troweled onto the surface to which flashings are to be adhered in approximately 1/ 8" (3 mm) thick
layer. Do not apply thicker than ¼" (6 mm). One gallon of material will cover approximately 14 square feet (0.34 m2/liter).
Typical Physical Properties
Material meets the requirements of ASTM D 4586, Type I.
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Color ................................................................................................ Black
Solids Content......................................................... 75 - 78% by Weight
Weight per Gallon .......................... 10.0 - 10.2 lbs (1.20 - 1.22 kg/liter)
Drying Time (70°F [21°C], 50%RH) .......................................... 6 Hours
Shelf Life ................................................. Indefinite in Airtight Container
Coverage ( 1/8 " [3 mm] thickness) ..14 sq. ft. per gal (0.34 m2 /liter) |
Packaging
5 gallon (18.9 liter) pails.
Refer to the Material Safety Data Sheet and Product Label prior to using this product. For an identical copy of this data sheet ask for
RS-2029.
Topgard® Type A

Description
Topgard Type A Roof Coating is a combination of aluminum flakes suspended in an emulsified asphalt to provide excellent reflectivity in a
non-combustible roof surfacing. Because of the unique formulation, the aluminum flakes stay well dispersed in the mixture to minimize mixing
time and to provide optimum flaking of particles on the roof surface.
Use
Topgard Type A Roof Coating is used as a reflective coating for smooth-surfaced built-up roofs, and can provide a UL Class A rating in
certain constructions (see UL Roofing Materials and Systems Directory). It provides a layer of weathering asphalt and a reflective surface to
help minimize cooling loads in structures of all kinds and makes an excellent protective coating for metal, concrete, stucco and masonry
surfaces. Do not take internally. If swallowed, do not induce vomiting, call physician immediately. Keep out of reach of children.
Application
When applying Topgard Type A, use a brush, medium nap roller (3/4" [19mm]) or heavy-duty spray equipment. Emulsion-coated membranes
can be coated as soon as the emulsion has dried. Built-up roof membranes should be allowed to oxidize for 30 days before coating. Do not
apply over asphalt-glazed roofs that have not been allowed to weather through one full summer. Repair all surface defects before application.
Clean roof surface of dirt, debris and any oil or greases that may be present.
Do not apply within 24 hours of rain or when freezing weather is expected. Topgard Type A Aluminum Emulsion Roof Coating is made of
asphalt, non-asbestos reinforcing fibers and small particles of aluminum. To ensure proper application and long-term results, it is essential that
the aluminum particles be completely dispersed in the mixture before application. Anything less than complete mixing will results in an
unsatisfactory application.
Coverage
Coverage Rate |
Type of Roof
(100 sq. ft. [9.29 m2]) |
|
Fiber glass felts |
13/4 - 2 gal.
(6.6-7.6 liters) |
Smooth surface emulsion |
1½ - 2 gal.
(5.7-7.6 liters) |
Packaging
5 gallon (18.9 liter) pails (approximate weight: 47 lbs. [21.3 kg])
Refer to the Material Safety Data Sheet and Product Label prior to using this product. For an identical copy of this data sheet ask for
RS-2068.
Topgard® Type B

Description
Topgard Type B is a clay-stabilized, fibrated, water-based asphalt emulsion with non-asbestos reinforcing fibers. When dry and cured,
Topgard Type B will not soften and slide or flow on steep slopes and can obtain a better fire rating than solvent-based, cut-back coatings.
Use
Topgard Type B is used as a top surface coating over smooth surfaced built-up roofs, especially on steep slopes. It also makes an excellent
re-coating material to renew the appearance of weathered roofs.
Caution:
- AVOID CONTACT WITH EYES
- DO NOT TAKE INTERNALLY
- KEEP CONTAINER CLOSED WHEN NOT IN USE
- KEEP OUT OF REACH OF CHILDREN
Application
When applying Topgard Type B to an old roof, brush surfaces free of dirt and loose material, and, if necessary, prime lightly. Repair all serious
defects with JM Bestile Industrial Roof Cement and JM GlasPly Premier, GlasPly IV felts or glass fabric. Apply with soft bristle push broom,
squeegee or spray equipment. Apply the coating, giving special attention to heavily weathered areas, laps and joints. The material should be
stirred well before using and should not be diluted.
In extremely hot weather, spread out immediately after application, as the heat may cause abnormally rapid water evaporation and premature
drying of the coating. Do not apply when temperature is less than 40°F (4°C) or when freezing weather is expected within 24 to 48 hours.
Protect from freezing in containers. Consistency of Topgard Type B may become heavier at lower temperatures. Product can be thinned by
stirring. Frozen material should be discarded as it will have lost its effectiveness. Do not apply when wet weather is expected, as this material
is not water resistant until thoroughly dry.
Material meets the requirements of ASTM D 1227, Type IV (clay-type).
Coverage
3 gallons (11.4 liters) covers approximately 100 square feet (9.29 sq. meters) of roof area.
Packaging
5 gallon (18.9 liter) pails and 55 gallon (208.2 liter) drums.
Refer to the Material Safety Data Sheet and Product Label prior to using this product. For an identical copy of this data sheet ask for
RS-2066.
Fibrated Aluminum Roof Coating

Description
Fibrated Aluminum Roof Coating is an asphalt based, non-asbestos, fiber reinforced, highly reflective aluminum coating.
Use
Fibrated Aluminum Coating is used as a top surface coating for smooth surfaced built-up roofs, to give a uniform appearance to the roof
surface, to coat the finishing felts with weatherproofing asphalt, and to reflect heat and sunlight. It also makes an excellent recoating material
to renew the appearance of weathered roofs.
To minimize risk:
- AVOID PROLONGED OR REPEATED BREATHING OF VAPOR
- AVOID CONTACT WITH EYES
- DO NOT TAKE INTERNALLY
- USE WITH ADEQUATE VENTILATION
- KEEP AWAY FROM HEAT, SPARKS AND OPEN FLAME
- KEEP CONTAINER CLOSED WHEN NOT IN USE
- KEEP OUT OF REACH OF CHILDREN
Application
When applying Fibrated Aluminum Roof Coating to older roofs, brush surfaces free of dirt and loose material. Repair all serious defects with
JM Bestile Industrial Roof Cement and JM GlasPly Premier, GlasPly IV felts or glass fabric. Apply coating, giving special attention to
heavily-weathered areas, laps and joints. Apply with a brush, medium (3/4" [19 mm]) nap roller, or heavy-duty spray equipment.
When applied to new roofs, some darkening of the coating at roof laps is normal. This can be reduced by first applying JM Topgard® Type B
and allowing it to dry 48 to 72 hours or by allowing the asphalt surfacing to weather over one complete summer. Do not apply over dead level
asphalts or coal tar pitch.
Flashings should be allowed to stabilize for one year before coating with this material.
Material meets the requirements of ASTM D 2824, Type III.
Coverage
1½ to 2 gallons (5.7 to 7.6 liters) covers approximately 100 square feet (9.29 m2) of roof area.
Packaging
5 gallon (18.9 liter) pails.
Refer to the Material Safety Data Sheet and Product Label prior to using this product. For an identical copy of this data sheet ask for
RS-2067.
Concrete Primer

Description
Concrete Primer is a thin brushing, cut-back asphalt primer.
Use
Concrete Primer is used to prime concrete roof decks, brick and other masonry used in parapets and walls to which flashings are to be
applied. It prepares these surfaces to receive hot asphalt or cold asphaltic cements and ensures good adhesion. Concrete Primer also
makes an excellent primer for metal edge strips and other metal roof components which are to receive asphaltic coatings or cements.
To minimize risk:
- AVOID PROLONGED OR REPEATED BREATHING OF VAPOR
- AVOID CONTACT WITH EYES
- DO NOT TAKE INTERNALLY
- USE WITH ADEQUATE VENTILATION
- KEEP AWAY FROM HEAT, SPARKS AND OPEN FLAME
- KEEP CONTAINER CLOSED WHEN NOT IN USE
- KEEP OUT OF REACH OF CHILDREN
Application
Apply Concrete Primer by brush, roller, or spray to surfaces which have been cleaned of dirt and loose material. Allow to dry thoroughly before
proceeding with the application of the roofing system.
Concrete Primer can be used at any time of the year. In weather below 40°F (4°C), keep in a warm area (70°F [21°C]) until ready to use, to
make application easier. The Primer is ready for use right out of the container and should not be diluted.
Material meets the requirements of ASTM D 41.
Coverage
One gallon (3.8 liters) covers approximately 100 square feet (9.29 m2) of roof area.
Packaging
5 gallon (18.9 liter) pails and 55 gallon (208.2 liter) drums.
Refer to the Material Safety Data Sheet and Product Label prior to using this product. For an identical copy of this data sheet ask for
RS-2065.