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Acrylic Latex Liquid Tape |
A-3611 (formerly A-9611) December 2001 Supersedes 7/00 |
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DESCRIPTION: |
GacoFlex A-3611
water-borne, single component elastomeric coating is characterized by
excellent hardness, strength, adhesion and water
resistance. | |||
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USAGE: |
Intended for spray
application over primed metal roofs as a joint and fastener treatment in
place of fabric and/or elastomeric sheet tape. A-3611 can be applied by
brush or roller.
Can be used as a tape-seal over cracked polyurethane foam insulation. | |||
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LIMITATIONS: |
DO NOT apply to
interior urethane foam. Where service conditions are below 10°F (-12°C).,
contact Gaco Western, Inc. Do not apply on surfaces subject to prolonged
water soak. | |||
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COLOR: |
A-3611
Gray. | |||
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| WEATHERABILITY: |
Not intended as a top
coat. | |||
| TENSILE: |
ASTM
D-412 Strength: Elongation: Permanent Set at Break: |
350 psi (24.7 kg/cm²) 125% <5%<> | ||
| HARDNESS: |
ASTM D-2240 Shore A |
70 | ||
| TEAR RESISTANCE: |
ASTM D-624 DIE
C Lb./In. |
85 (15.2
kg/cm) | ||
| WATER VAPOR PERMEABILITY: |
ASTM E-96 Procedure
B |
0.06 Perm Inches (1.5
mm) | ||
| TOXICITY: |
Not for use in contact
with edible substances or potable water. | |||
| ADHESION: |
Adhesion is excellent
to urethane foam, built-up roof materials, masonry, concrete and wood.
A-3611 also has excellent adhesion to all GacoFlex elastomers except
LM-60H/V. A primer must be used on ferrous metals to prevent corrosion.
Contact Gaco Western for
specific information. | |||
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| COVERAGE: |
Sq.
Ft./Gal./Mil. |
978 (24 m² / L / 0.025
mm) | ||
| SOLIDS: |
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70% 63% | ||
| V.O.C.: |
35 grams per
liter | |||
| A.P.C.: |
Products meet A.P.C.
requirements. | |||
| FLASH POINT: |
ASTM
D-1310 |
Above 200°F (93°C)
T.O.C. | ||
| STORAGE STABILITY: |
Twelve months. Protect
from freezing. Freezing temperature 29°F (-2°C). If frozen, thaw at 50° to
80°F (10° to 27°C).
Some separation can occur after storage of several months. Stir thoroughly before using to make homogeneous. | |||
| THINNING: |
Thinning is not
recommended under normal conditions. When desired, A-3611 may be thinned
up to 5% with water with A-32 | |||
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| Apply A-3611 GacoFlex Liquid Tape on all metal roof seams, joints,
fasteners and penetrations at 75 to 100 linear feet (24 to 30 meters) of
seams per gallon or 150 to 200 fasteners per gallon. Maximum applied
thickness should be limited to 1/8th inch (3.2 mm) per coat. A-3611 is typically applied directly from the container by brush, or bulk loading caulking gun or using airless spray equipment with a spray gun and gun extension tube but no spray tip. Sprayer is operated at low pressure (300 to 600 psi (2.07 to 4.14 MPa)) to produce a caulking bead of A-3611 Liquid Tape when the gun is triggered. When applying A-3611 in hot weather, float a small amount of clean water on top of opened containers to prevent skinning. It is recommended that equipment be flushed with water at the end of each day to avoid potential problems such as coating build-up or plugging. Clean equipment with water supplemented with liquid detergent. Follow equipment manufacturer?s instructions for final cleaning and storage. A-3611 is water based and requires the complete evaporation of the water to achieve cure. DO NOT apply to surfaces that are, or will reach 50ºF (10ºC) within 12 hours. | ||||