Gardner 0318-GA Leak Stopper Rubberized Roof Patch, 29 Oz


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SKU: 10742527
MFG: 0318-GA


A revolutionary advancement in roof patching and repair. This long lasting rubberized repair is specially formulated to penetrate deep into damaged areas and stop roof leaks instantly! The secret is Penetrex™, a unique penetrating oil that reaches deep into the crack and forms a complete seal. With the addition of liquid rubber, this flexible, high performance plastic cement provides a superior watertight bond that will stop problem leaks for good. Product formulated to be used year round. Leak stopper is ideal for a variety of roof surfaces including Shingles, Built-Up Roofs, SBS Modified Roofs, Metal Roofs and many other surfaces.

  • Size: 29 oz
  • Application temperature: 50°-120°F
  • Leak stopper roof patch
  • A fiber reinforced trowel grade rubberized roof patch
  • This specially designed roof patch permanently & instantly repairs even problem leaks in wet or dry conditions
  • It also stretches to prevent cracking & lasts 4 times longer than other products
  • Ideal for a variety of roof surfaces including Shingles, Built-Up Roofs, SBS Modified Roofs, Metal Roofs and many other surfaces.

What It Does:

  • Stops roof leaks instantly.

What Is Needed To Complete The Job?

  • Trowel or caulk gun, gloves and reinforcing fabric.

Prep The Area:

  • Surfaces must be clean, free of surface rust and loose material.

How To Apply:

  • Use trowel to spread across damaged surface of roof. Embed reinforcing fabric after first layer and apply second layer on top of fabric.

How Much Do I Need?:

  • Covers approximately 8 sq. ft. per gallon.

Do's and Don'ts:

  • Do apply in exterior applications only. Do wear protective clothing. Don't apply to plastic, EPDM, Hypalon or similar type of synthetic rubber roof system. If there is a question on compatibility, test a small section first before application to entire surface area.

How To Clean-Up:

  • Clean tools and spills with paint thinner or mineral spirits.
WARNING: This product can expose you to chemicals including Bitumens, extracts of steam-refined and air refined, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to


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