SANDELL®’S TROWEL MASTIC
Sandell®’s Trowel Mastic is a cut-back asphalt blend, containing
long fiber material. It is manufactured in a thick consistency for
easy application. This mastic is used in conjunction with setting and sealing
flashing. The mastic is also used below grade for damp-proofing purposes.
Furnished in 5 gallon pails.
Coverage: approximately 25 sq ft. per gallon with 1/16" thickness, 12-1/2
sq. ft. per gallon with 1/8" thickness.
USES:
Copper Laminated Flashings.
Splicing
Sandell Asphalt Trowel Mastic is the preferred mastic to be used while
splicing copper flashings. Material should be overlapped a minimum of 4"
and coating of Sandell Asphalt Trowel Mastic applied to a yield of 25 sq
ft. per gallon coverage.
Vertical Masonry Surfaces
Sandell Asphalt Trowel mastic should be spotted to vertical surfaces
to receive flashing. Sandell Asphalt Trowel Mastic will hold the flashing
in place while masonry is set. Flashing should be secured in a reglet or
masonry joint or mechanical fastener.
General Purpose
Sandell Asphalt Trowel Mastic can also be used as a general purpose
cement for repairing leaks in asphalt roofs, metal roofs, chimneys, flues,
down spouts and concrete.
CONSISTENCY:
Sandell Asphalt Trowel Mastic is a heavy, trowel grade which spreads
easily and adheres to most surfaces. Coverage should yield approximately
25 sq ft. per gallon. Sandell Asphalt Trowel Mastic retains its elasticity
and ductility, thus coating will resist extreme variations in temperature.
SANDELL®'S NUFLEX MASTIC
Sandell®’s Nuflex Mastic was specifically formulated to give a
perfect bond between Nuflex Plastic Flashing and all construction surfaces.
Applied cold with a trowel, this product forms a durable elastic coating
which adheres uniformly to Nuflex Plastic. Sandell®’s Nuflex
Mastic adjusts independently to contraction and expansion caused by temperature
cycling and structural movement.
Furnished in 5 gallon pails.
Coverage: approximately 25 sq. ft. per gallon with 1/16" thickness,
12-1/2 sq. ft. per gallon with 1/8" thickness.
CHARACTERISTICS: Produces a strong bond
between Nuflex and other surfaces. It is also excellent for bonding other
materials such as Tedlar, neoprene, asbestos and foamed polystyrene. Unlike
asphalt mastics that cause plasticizer migration when used with PVC, Sandell
Special Nuflex Mastic is compatible with all PVC and polyethelene materials
and also asphaltic materials.
MODEL SPECIFICATIONS:
Special Requirements: Protect all adjacent work from damage
by work performed under this section.
Preparation: Surfaces to be bonded should be clean and free
of dirt, oil, water or other contaminates. Remove all loose and water-soluble
material.
Materials: Cement for bonding vinyl membrane (Sandell/Nuflex)
to itself and all surfaces where required will be Sandell Special Nuflex
Mastic as manufactured by Sandell Manufacturing Co., Inc., Amsterdam, New
York.
APPLICATION:
Sandell Special Nuflex Mastic can be easily applied by trowel to both
surfaces. A saw toothed trowel having equilateral 1/8" notches is recommended
for most single-surface applications. A trowel having 1/16" square notches
with 1/16" flats between the notches is recommended for two sided applications.
On relatively smooth surfaces, either a stiff brush or the 1/16" square
notched trowel should be used. Allow the adhesive to dry until it is quite
tacky. Using a thin coat of adhesive, this will take about 15 minutes at
77 degrees F. and 50% R.H. Heavy trowel coatings may require long drying
times for complete solvent evaporation. Bonds can be made up to 3 hours
after application of the adhesive, depending upon materials being bonded,
surface porosity and application method. Press the material to be bonded
into position. Apply pressure with roller from center edges forcing out
entrapped air. A strong bond results immediately. Maximum strength is attained
in about 48 hours.
NOTE: Although Sandell Special Nuflex Mastic contains a solvent
blend specifically formulated to minimize cell collapse due to solvent
attack on the surface of foamed or expanded polystyrene, care should be
taken to avoid solvent entrapment in the glue line by joining surfaces
prior to allowing sufficient solvent evaporation.
CAUTION!
THIS CEMENT CONTAINS VOLATILE, FLAMMABLE SOLVENT,
PROVIDE ADEQUATE VENTILATION. AVOID SPARKS. DO NOT USE NEAR OPEN FLAME
OR
SPARK-PRODUCING EQUIPMENT.
SANDELL®’S S-600™ PRIMER
S-600™ Primer is a high tack primer, specially formulated to provide
permanent adhesion of Sandell®’s Sando-Seal® Flashing. S-600™ Primer
is
used to precondition all structural concrete and masonry surfaces on which
Sandell®’s Sando-Seal® self adhering flashing is to be applied.
S-600™ Primer may be applied by explosion proof sprayer, roller or brush.
Furnished in 5 gallon pails.
SANDELL®’S SANDO-DRY MASTIC
Sandell®’s Sando-Dry Mastic is an excellent sealant for all types
of masonry flashings. This unique rubberized asphalt blend creates successful
adhesion characteristics when applied to concrete and wood.
Available in 29 oz. tubes, 12 tubes per case.
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