Installation Guide

DESCRIPTION: United Coatings
™
Roof Mate
™
Top Coat is a water-
based, acrylic elastomeric top coat that is part of the Roof Mate
™
Coating System. Roof Mate
™
Top Coat is designed to be applied over
Roof Mate
™
Base Coat. Roof Mate
™
Top Coat forms a waterproof
elastomeric seal, uniformly covering the substrate to form a monolithic
coating that helps provide protection from normal weathering,
aging, and ultraviolet exposure. It is made with premium-quality
acrylic resins, which are combined with an effective biocide package
and non-migrating fire retardants, resulting in superior durability,
weatherproofing, ultraviolet resistance, algae/mildew resistance, and
fire retardancy. Roof Mate
™
Top Coat is a highly reflective, permanently
flexible “breathable” membrane, allowing moisture vapor from
the substrate or building interior to slowly escape while remaining
impervious to mass water penetration from the exterior. It is also
effective in sealing and encapsulating galvanized metal roofs, helping to
prevent residual zinc run-off.
USES: Roof Mate
™
Top Coat is designed to be used with Roof Mate
™
Base Coat on existing metal, concrete, TPO, PVC, and most asphaltic
membrane roofs. New metal and concrete roofs should be weathered
for at least 30 days. New asphaltic, TPO, and PVC roofs should be
weathered for at least 90 days. Note: For use on EPDM or smooth
APP membranes, see gaf.com for more details. Do NOT use on gravel-
surfaced roofs or shingle roofs.
SUBSTRATE PREPARATION: All surfaces must be clean, dry, and free
of any dirt, dust, oil, surface chemicals, or other contaminants that
may interfere with optimum adhesion. Any unsound areas in the roof
must be repaired or replaced prior to application. Deteriorated or badly
corroded metal must be replaced prior to application. TPO & PVC roofs
must be primed before applying Roof Mate
™
Base Coat. See gaf.com
for more details.
MIXING: Thoroughly mix using a power mixer for a minimum of 5
minutes prior to application. For 5-gallon (18.9 L) pails, use a 3” (76
mm) minimum diameter mixing blade. For 55-gallon (208 L) drums,
use a 6” (152 mm) minimum diameter blade.
APPLICATION OF BASE & TOP COATS: Apply one coat of Roof Mate
™
Base Coat and a minimum of one coat of Roof Mate
™
Top Coat with a
brush, roller, or sprayer. Roof Mate
™
Top Coat can be applied over Roof
Mate
™
Base Coat once the base coat is dry enough to walk on. Dry
times will vary based on temperature and humidity. Apply both base
and top coats at a rate of 1.0 – 1.5 gallons per 100 square feet (4.1 –
6.1 L/10 m
2
). Apply each subsequent coat perpendicular to the previous
coat to ensure proper coverage. Total system should use minimum of
2.0 to 3.0 gallons per square feet (8.2 – 12.2 L/10 m
2
). Coverage rate
will vary depending upon the substrate, its surface profile, and porosity.
Rough substrates will require additional coating. Total finished dry film
thickness must be at least 17.5 mils (0.44 mm).
SPRAY INSTRUCTIONS: Apply product with an airless sprayer,
covering the surface at an even rate. Use an airless spray pump with a
1 gallon-per-minute (3.8 L/minute) output and 2,000 psi (13,790 kPa)
pressure capability. Use a reversible, self-cleaning tip with orifice size
0.027” – 0.039” (0.69 – 0.99 mm) and a fan angle of 40° to 50°. Filter
screens should be 30 mesh or larger. For lengths up to 75 ft. (23 m)
from pump, use a 3/8” (9.5 mm) minimum inside diameter, nylon high
pressure-type hose. For lengths of 75 ft. – 200 ft. (23 – 61 m) from
pump, use 1/2” (12.7 mm) inside diameter hose added to pump side
of existing 3/8” (9.5 mm) hose to maintain pressure and delivery. For
lengths over 200 ft. (61 m) from pump, use 5/8” to 3/4” (16 to 19 mm)
inside diameter hose added to pump side of existing hose.
CLEAN-UP: Clean equipment and overspray with water before
curing. If coating has hardened, clean with mineral spirits or
biodegradable turpentine solvent. Clean hands with soap and water
or waterless hand cleaner.
STORAGE & HANDLING: Store material in a clean and well-ventilated
area at 40°F – 90°F (4°C – 32°C). Storage outside this temperature
range may shorten shelf life. Keep containers covered when not in use.
Do NOT allow coating to freeze.
SHELF LIFE: 18 months from date of manufacture in unopened
containers, if stored properly.
IMPORTANT: Repair leaks promptly to avoid adverse effects, including
mold growth.
• DO NOT apply on wet substrates or in temperatures below 50°F
(10°C).
• DO NOT apply if rain, dew, fog, or freezing temperatures are in the
24-hour forecast.
• DO NOT apply in the late afternoon if heavy moisture condensation
may appear during the night.
• DO NOT apply on substrates that exceed 105°F (40°C).
For technical, system, and warranty information, visit gaf.com or call
1-800-766-3411.
FOR PROFESSIONAL AND OUTDOOR USE ONLY
WARNING
HAZARD STATEMENTS: May cause an allergic skin reaction. Suspected of causing cancer. Harmful to aquatic life.
PRECAUTIONARY STATEMENTS: Keep out of reach of children. Keep container tightly closed. Read label
before use. Do not handle until all safety precautions have been read and understood. Use with adequate ventilation. Wear protective rubber
gloves and ANSI approved safety glasses when handling this product. Dispose of contents and empty containers in accordance with local,
state, and federal regulations.
CONTAINS: Titanium Dioxide, Paraffinic petroleum oil, Chloro-2-methyl-4- isothiazolin-3-one,
calcium carbonate, aluminum trihydroxide.
For further information on this product, see Safety Data Sheet at gaf.com.
TOP COAT / REVESTIMIENTO SUPERIOR
ROOF MATE
CHEMTREC 24-HOUR EMERGENCY: 800-424-9300
©2016 GAF 10/16 • 1 Campus Drive, Parsippany, NJ 07054 • gaf.com