SDS
Roofing
Materials
Gutters &
Downspouts
Pipes
& More
Stops Leaks
Fast!
Stops Leaks
Fast!
FLEXIBLE RUBBER COATING
11 Hawthorn Pkwy., Vernon Hills, IL 60061
800-481-4785 rustoleum.com/leakseal
Made in USA | Hecho en E.U.A.
SEALS CRACKS UP TO 1/4”
¡
PELIGRO! 
LÍQUIDO Y VAPORES EXTREMADAMENTE 
INFLAMABLES.  PUEDEN  CAUSAR  UNINCENDIO 
INSTANTÁNEO REPENTINO. NO SOMETER A PRESIÓN. 
Observe otras precaucionesen el panel de atrás.
DANGER! EXTREMELY FLAMMABLE LIQUID 
AND VAPOR. VAPORS MAY CAUSE FLASH FIRE. 
CONTENTS UNDER PRESSURE.
See other cautions on back panel.
GUARANTEED
TO WORK
OR YOUR
MONEY BACK*
GUARANTEED
TO WORK
OR YOUR
MONEY BACK*
LeakSeal
®
 Flexible Rubber Coating is an easy to use, rubberized protective 
utility coating designed to fill gaps & cracks up to 1/4” and seal out water, air & 
moisture. It provides a watertight, weatherproof barrier that also protects the 
surface from rust. LeakSeal dries to a semi-smooth, firm finish that will not sag 
or drip, and can be top-coated with latex or oil based paints.
Great for:  Roofing Materials, Gutters & Downspouts, Skylights, Chimneys, 
Awnings, Flashing, PVC Pipes, Windowsills, Duct Work, Vent Pipes, DIY 
Projects & More
For Use on: Metal, aluminum, galvanized metal, PVC, concrete, masonry, 
asphalt roofing materials, vinyl, fiberglass, and more. Not recommended for 
rubber surfaces or surfaces exposed to continuous water immersion. 
Important: Read all instructions prior to use. Test in an inconspicuous area. 
Painting Conditions: Use outdoors or in a well ventilated area. Do not apply to 
wet surfaces. Use when temperature is above 50°F (10°C) and humidity is 
below 65% to ensure proper drying. Avoid spraying in windy, dusty conditions.
Surface Prep: Remove dirt and debris from area to be coated. Cover and mask 
off areas to avoid overspray if necessary. Lightly sand glossy surfaces. 
WARNING! If you scrape, sand or remove old paint, you may release lead dust. 
LEAD IS TOXIC. Contact the National Lead Information Hotline at 
1-800-424-LEAD or log on to www.epa.gov/lead.
Application: Shake can vigorously for one minute after mixing ball begins to 
rattle. Shake often during use. If mixing ball fails to rattle DO NOT STRIKE CAN. 
Contact Rust-Oleum. A test spray on cardboard is recommended to obtain feel 
for spray pattern. Spray surface in short even strokes. Hold can 8”-18” from 
surface. It is recommended to apply a light first coat. The second coat can be 
applied heavier. Quicker build-up can be achieved by moving nozzle closer in to 
gap. Initial spray may have some foaming/bubbling on the surface, but will 
dissipate as coating dries. For best results and depending on gap size, apply at 
least 2 coats. Allow to dry 15-30 minutes between coats. Dries to the touch in 2 
hours and cures in 24 hours.
Top-Coating: Based on 70°F (21°C) and 50% relative humidity, can be 
top-coated with latex-based or oil-based paints after 24 hours. Cooler 
temperatures or higher humidity may increase dry times.
Clogging: After use, turn can upside down and press spray nozzle until spray is 
clear to prevent clogging. If valve clogs, twist and pull off spray tip and rinse it 
in a solvent such as mineral spirits. Do not stick a pin or other objects into the 
stem.
Clean-Up: Wipe tip off before storing. Clean up wet or dry coating with Xylol or 
mineral spirits. Throw away empty can in trash pick-up. Do not burn or place in 
home trash compactor.
CONTAINS: LIQUIFIED PETROLEUM GAS, PETROLEUM DISTILLATES, DIMETHYL CARBONATE, AROMATIC 
AND ALIPHATIC HYDROCARBONS, ACETATES AND METHYL ISOBUTYL KETONE. Vapor harmful. May affect the 
brain or nervous system causing dizziness, headache or nausea. Causes eye, skin, nose and throat irritation. Do not 
puncture, strike, or incinerate (burn) container. Exposure to heat or prolonged exposure to sun may cause bursting. Do 
not expose to heat or store at temperatures above 120°F (48°C). NOTICE: Reports have associated repeated and 
prolonged occupational overexposure to solvents with permanent brain and nervous system damage. Intentional 
misuse by deliberately concentrating and inhaling the contents may be harmful or fatal. Vapors may ignite explosively. 
Keep away from heat, sparks and flame. Do not smoke. Extinguish all flames and pilot lights and turn off stoves, 
heaters, electric motors and other sources of ignition during use and until all vapors are gone. Prevent build-up of 
vapors by opening all windows and doors to achieve cross-ventilation. Use only with adequate ventilation. Do not 
breathe dust, vapors or spray mist. Ensure fresh air entry during application and drying. If you experience eye watering, 
headache or dizziness or if air monitoring demonstrates vapor/mist levels are above applicable limits, wear an 
appropriate, properly fitted respirator (NIOSH approved) during and after application. Follow respirator manufacturer’s 
directions for respirator use. Avoid contact with eyes, skin and clothing. FIRST AID: If you experience difficulty in 
breathing, leave the area to obtain fresh air. If continued difficulty is experienced, get medical assistance immediately. In 
case of eye contact, flush immediately with plenty of water for at least 15 minutes and get medical attention; for skin, 
wash thoroughly with soap and water.  WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov. 
KEEP OUT OF REACH OF CHILDREN. For emergency, call your physician, local poison control center or local 
emergency room. For product health information, call: (800) 481-4785.
CONTIENE:  GAS DE PETRÓLEO LICUADO, DESTILADOS DEL PETRÓLEO, CARBONATO DE DIMETILO, 
HIDROCARBUROS AROMÁTICOS Y ALIFÁTICOS, ACETATOS, Y METIL ISOBUTIL CETONA. VAPORES DAÑINOS. 
Puede afectar al cerebro o al sistema nervioso causando mareos, dolores de cabeza o nausea. Causa 
irritaciones en los ojos, piel, nariz y la garganta. No perfore, golpee o incinere (queme) el contenedor. Una 
exposición al calor o una prolongada exposición al Sol puede causar un reventón explosivo. No exponga al 
calor o almacene en temperatura sobre 48°C (120°F). AVISO: Los reportes han asociado una exposición 
excesiva ocupacional repetida y prolongada a los solventes con daños permanentes al cerebro y al sistema 
nervioso. El mal uso intencional al concentrar deliberadamente y respirar el contenido puede ser dañino o 
fatal. Vapores se pueden encender explosivamente. Mantenga lejos del calor, chispas y llamas del fuego. 
No fume. Extinga todas las llamas, llamas piloto y apague las estufas para cocinar, calentadores, motores 
eléctricos y otras fuentes de ignición durante el uso y hasta que todos los vapores se han disipado. Prevenga 
la concentración de los vapores al abrir las ventanas y las puertas para lograr una ventilación cruzada. Use 
solamente con una ventilación adecuada. No respire el polvo, los vapores o la niebla del rociado. Asegure 
la entrada de aire fresco durante la aplicación y el tiempo de secado. Si sufre de lagrimeo de los ojos, dolores 
de cabeza, o mareos, o si el monitoreo del aire demuestra que los niveles del vapor/rociado se encuentran 
sobre los límites aplicables, use una protección para la respiración (aprobada por NIOSH) durante y después 
de la aplicación. Siga las direcciones del fabricante del respirador para su uso. Evite contacto con los ojos, la 
piel y la ropa de vestir. PRIMEROS AUXILIOS: Si es que sufre de dificultad para respirar, salga del área para 
obtener aire fresco. Si la dificultad continua, obtenga atención médica inmediatamente. En caso de contacto 
con los ojos, lávelos inmediatamente con bastante agua por lo menos 15 minutos y luego obtenga atención 
médica. En caso de contacto con la piel, lávela completamente con jabón y agua.  ADVERTENCIA: 
Cáncer y daños reproductivos – www.P65Warnings.ca.gov. MANTENGA FUERA DEL ALCANCE DE LOS 
NIÑOS. En caso de una emergencia, llame a su médico, o al centro local para el control de los venenos 
o una sala local para las emergencias o urgencias. Para obtener información sobre la salud referente a 
este producto llame al: (800) 481-4785.
*
SATISFACTION GUARANTEED: If you are dissatisfied with this product, contact our Product Support Department at 
1-800-481-4785 for a full refund of the purchase price. Refer to product number and batch code on bottom of can.
*
SATISFACCIÓN GARANTIZADA: Si usted no está satisfecho(a) con este producto, póngase en contacto con nuestro Departamento 
de Soporte al 1-800-481-4785 para el Producto para obtener el reembolso completo del precio de compra. Por favor refiérase con el 
número del producto y el código del lote en el fondo de la lata.
NET WT. 15 OZ. (425g)
351904 WHITE
0 20066 45215 5
©2020 Rust-Oleum Corporation 356329 0120
231301211X713 20OZ NI LS GUARANTEED
CYAN MAG YEL BLACK
231301
Flexible Packaging & Label Specialists
22790 Heslip
Novi, Michigan 48375 
800/748-0209 • 248/335-7440
www.anchorprinting.com
APPROVED
OK TO PROCEED
NOT APPROVED
SEND NEW PROOF
CUSTOMER INITIALS
Please read the proof and specifications carefully. Any errors that are not 
acknowledged by the customer are NOT the responsiblility of Anchor Printing. 
Customer approval is required for print production.
Ink Colors
Specs:
Size: 20oz 211 x 713 Stock: White Poly
  8.625” x 7.451”
Coating: Lamination
CYAN MAGENTA YELLOW BLACK
356329 351904 RO LS GUARANTEED WHITE.indd 1 2/7/20 12:11 PM

